Instruction/ maintenance manual of the product CRS-300 Comtech EF Data
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IMPORTANT NOTE: The information conta in ed in this document su persedes all previousl y published informa tion regarding this prod uct. Produ ct specificatio n s are subject to ch ang e without prior notice.
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Copyright © Comtech EF Data, 2010. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480. 333.2200, FAX: 480.333.2161 CRS-300 1:10 Redundancy Switch Installation and Operation Manual Part Number MN/CRS300.
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iii Table of Contents TABLE OF CONTENTS ............................................................................................................. . III TABLES ....................................................................................
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM iv 1.4 Description of CRS-300 Features ............................................................................................. 1 –7 1.4.1 Front Panel .....
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM v 4.2.2 CRS-300 to CRS-350 Connection ........................................................................................... 4–4 4.2.3 CRS-300 to CRS-350 and CRS-280/280L Connection .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM vi 4.7.5.2 Wired-around Connections ........................................................................................... 4–52 4.7.6 User Data Connections – CRS-300 to User .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM vii 5.4 TMI Card Configuration Reference ...................................................................................... 5–11 5.4.1 EIA-530 Interfaces via the CRS-316 TMI .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM viii 7.3 SELECT (Top-L evel) Menu ...................................................................................................... 7–7 7.4 SELECT: CONFIG (Configuration) .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM ix A.3.5 Optional EIA-485 Multi-drop Ribbon Cabl e, (15X) DB-9 Female .................................. A-10 A.3.6 Control ‘Y’ Cable for CDM-Qx and CDM-QxL with CnC ® .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM x C.5 Packet Structure .............................................................................................................. ......... C–3 C.5.1 Start of Packet .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM xi Figures Figure 1-1. Typical Redundancy Sy stem-Level Block Diagram .............................................................. 1–5 Figure 1-2. CRS-280/280L IF Switc h Operational Schem atic .
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM xii Figure 4-2. Control Cable Connection Exam ple for CRS-300 Æ CRS-280L ........................................... 4–6 Figure 4-3. Control Cable Connection Exam ple for CRS-300 Æ CRS-350.
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM xiii Figure A-2. DCE Conversion Cable: EIA-530 to V.35 ........................................................................... A-3 Figure A-3. Switch Programming Cable ...
CRS-300 1:10 Redundanc y Switch Revision 16 Table of Contents MN/CRS300.IOM xiv This page is intentionally blank..
xv PREFACE About this Manual This manual prov ides installation and o peration inform ation for the Comtech EF Data CRS-30 0 1:10 Redundancy Switch. This is a technical document in tende d for earth station engineers, technicians, and operators responsible for the operation and mainte nance of the CRS-300.
CRS-300 1:10 Redundanc y Switch Revision 16 Preface MN/CRS300.IOM xvi Conventions and Referenc es Cautions and Warnings IMPO R T AN T IMPORTANT or NOTE indicates a st atement that is ass ociated with the task being performed or information critical for proper equipment function.
CRS-300 1:10 Redundanc y Switch Revision 16 Preface MN/CRS300.IOM xvii EN55024 - 1998 Compliance This equipment meets the EMC/immunity characteri st ics for the limits a nd methods of m easurement for information technolo gy equipment per EN55024-199 8.
CRS-300 1:10 Redundanc y Switch Revision 16 Preface MN/CRS300.IOM xviii War ran ty Po lic y Comtech EF Data products are warranted ag ain st defects in m ate rial and workmanship for a specific period from the date of shipment , and this period varies by product.
CRS-300 1:10 Redundanc y Switch Revision 16 Preface MN/CRS300.IOM xix The warranty excludes any respon sibility by Comtech EF Data Co rporation for incide ntal or consequential damages ari sing from t.
CRS-300 1:10 Redundanc y Switch Revision 16 Preface MN/CRS300.IOM xx Customer Support IMPO RT A N T Refer to the Warranty Policy, p. xviii, for in formation regarding this product’s warranty.
1–1 Chapter 1. INTRODUCTION 1.1 Overview This chapter provides an overview, description and specifications for the CR S-300 1:10 Redundan cy Switch and its optional IF and E SC Switch c omponents : .
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–2 The CRS-300 1:10 Redundancy Switch (referred to throughout this ma nual as the Switch) provides fully automatic protection of traffic circuits in the case of equipment failure.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–3 NOT E the CRS-300). For detailed information on remote addressing schemes, refer to Appendix B. ADDRESSING SCHEME INFORM ATION . TMI Monitoring: Terrestrial user clock and data signals to and from a traffic modem are routed through a TMI via a set of relays.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–4 1.2 CRS-300 Comp atibility Table 1-1 shows the Comtech EF Data modems that are compatible for use with the CRS-300 1:10 Redundancy Switch.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–5 1.3 System-Level Block Diagram Figure 1-1 shows the system-level block diagram of the CRS-300 1:10 Redunda ncy Switch, including the optional CRS-280/280L IF and CRS-35 0 ESC Switches.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–6 1.3.1 CRS-280/280L Functional Schematic Figure 1-2 provides an operational schematic for the CRS-280/280L IF Switch.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–7 1.4 Description of CRS-300 Features 1.4.1 Front Panel Figure 1-3 illustrates the CRS-300 front panel. T he C RS -30 0 i s co ns tr uc ted as a 4R U- hig h, ra ck - mounting cha ssis that can be freestanding, i f desired.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–8 NOT E 1.4.2 Rear Panel Figure 1-4 shows the back panel of the CRS-300 with a typically configured mix of TMI cards.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–9 CDM-625 Modem Data Type TMI Type RMI Type EIA-422, V.35 CRS-316 Notes 5, 6 CRS-310 10/100 Ethernet N o t e 4 ASI N o t es 5 , 6 CRS-325 Notes 5, 6 G.703 Bal (DDI, IDO, DDO, IDI) N o t e 2 G.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–10 1.4.3.2 TMI Cards: CDM-570/570L, -600/600L, -625 Figure 1-6. CRS-320 TMI EIA- 232/-422 (P L/9 581 -1 ) OBSOLETE REPLACED BY CRS-340 DB-25 Female DB-25 Male Figure 1-7. CRS-330 TMI G.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–11 1.4.4 Modem Interface Cards: CDM-Qx/QxL, -700, -710, -710G , SLM-5650/5650A The following tables indicate the TMI (Traffic.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–12 1.4.4.1 RMI Cards: CDM-Qx/QxL, -700, -710, -710G , SLM-5650/5650A Figure 1-11. CRS-305 RMI (PL/11494-1) DB-25 Male (2X) BNC Male DB-15 Male HD-50 Female HD-15 Female Figure 1-12.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–13 1.4.4.2 TMI Cards: CDM-Qx/QxL, -700, -710, -710G , SLM-5650/5650A Figure 1-14.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–14 1.4.5 CRS-300 System Controller and Po wer Supply Card Assemblies Figure 1-21. CRS-230 System Controller (AS/0377) DB-9 Female DB-25 Male DB-9 Male DB-25 Female Figure 1-22.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–15 Figure 1-24. CRS-350 ESC Switch – Front Panel As explained in detail in the pertinent modem sections of Chapter 5.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–16 1.6 Summary of S pecifications 1.6.1 CRS-300 Specifications Characteristic Requirement Swi tch Type 1:N Redundancy Switch .
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–17 1.6.2 Modem vs. T errestrial User Dat a Interface S pecifications Modem TMI User Data Type User Data Connector(s) CDM-570 CDM-570L CRS-330 G.703 (Balanced/Unbalanc ed) (1) DB-15F/ (2) BNC CRS-340 EIA-422, V.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–18 1.6.3 CRS-280 and CRS-280L S pecifications Characteristic Requirement CRS-280 (70/140MHz) CRS-280L (L-Band) Tx/Rx Operatin.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–19 11.94 (30.3) 17.00 (43. 2) 12.68 (322) CLR ENT UNIT STATUS UNIT STA TUS UNIT STATUS STORED EVENT REMOTE CRS-300 REDUNDANCY.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–20 Figure 1-29. CRS-280 (70/140 MHz) Dimensional Envelope 19.000 (48) 6.9 60 (17.7) 1.229 (3.1) 18.260 (46) 1.480 (3.8) 4.000 (10) 16. 869 (4 2.8) 1.073 (2.7) 15.800 (40) 5.8 00 (1 4.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–21 17.00 (4 3 . 1 8 ) 13.18 (3 3 . 4 8 ) 13.92 (3 5 . 3 6 ) 6.9 6 (1 7 . 6 8 ) 19.
CRS-300 1:10 Redundanc y Switch Revision 16 Introduction MN/CRS300.IOM 1–22 Notes:.
2–1 Chapter 2. INST ALLA TION 2.1 Unp acking and Inspection Step Procedure 1 Inspect shipping contain ers for damage. 2 If shipping containers are damaged, kee p them until th e contents of the shipment have been carefully inspec ted and checked fo r normal operat ion.
CRS-300 1:10 Redundanc y Switch Revision 16 Installation MN/CRS300.IOM 2–2 or on top of the rack. If using the CRS-280L, refer also to the associated CRS-280L 1:N Redundancy Switch Installation and O peration Manual (MN/CRS280L.IOM) for further rack mounting information.
3–1 Chapter 3. ETHERNET NETWORK CONFIGURA TIONS 3.1 Introduction For operations requiring Ethernet-based terrestrial da ta handling, it is important to emphasize the need for Users to avoid Ethernet looping conn ection problems – with or without use of the CRS-300 1:10 Redundancy Switch.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–2 3.3 Ethernet Configuration Examples This section explains the p roblems with Ethernet Networ king Loops , and how to properly design applications architecture fo r handling Standard traffic and Split-path traffic.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–3 3.3.2 Ethernet Redundancy with CRS-300 After the customer has determined the best conf iguration for near-to-far end Et hernet networks, the CRS-300 1:10 Redundancy Switch may now be added to one or both ends of the link(s).
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–4 3.3.3 Hub-to-Hub with St a ndard T raffic using Switches When connecting two or more “hub-sites” wh ere th ere are multi-paths betwee n each site, care must be taken to ensure no network loops occu r.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–5 This page is intentionally blank..
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–6 3.3.4 Hub-to-Hub with St andard T raffic using Routers Figure 3-4 shows two hub-sites connected with standard Ethernet traffic, using routers instead of switches for Ethernet connection.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–7 Figure 3-5. Wired-thru for Hub-to-Hub with Standard Traffic using Routers Figure 3-6.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–8 3.3.5 Hub-to-Remotes with St andard T r affic using Routers or Switches Figure 3-7 shows hub-to-remotes configuration with st andard Ethernet traffic using routers or switches.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–9 Figure 3-8. Wired-thru for Hub-to-Remotes with Standard Traffic using Routers or Switches Figure 3-9.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–10 3.3.6 Hub-to-Remotes, S plit-p ath T raffic us ing Routers (Point -to-Multipoint) Figure 3-10 shows hub-to-remotes configuration with stan dard and split-path Ethe rnet traffic, using routers.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–11 Figure 3-11. Wired-thru for Point-to-Multipoint with Routers Figure 3-12.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–12 3.3.7 Hub-to-Remotes, S plit-p ath T raffic using Switches (Point-to-Multipoint) With switches used, the hub and remote are on the same subnet as shown in Figure 3-13 , meaning that broadcasts will be allowed to tran sverse the network.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–13 Figure 3-14. Wired-thru, Hub-to-Remotes, Split-path Traffic using Switches (Point-to-Multipoint) Figure 3-15.
CRS-300 1:10 Redundanc y Switch Revision 16 Ethernet Network Configur ations MN/CRS300.IOM 3–14 Notes:.
4–1 C h a p t e r 4 . CABLES AND CONNECTIONS 4.1 Overview All cables for connecting the CRS-3 00 1: 10 Redundancy Switc h to the modems or with in the system are available from Comtech EF Data. These cables can be ordered at th e sam e time the order is placed for the CRS-300.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–2 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–3 4.2 Switch-to-Switch Connections o CRS-300 to CRS-280/280L Connection o CRS-300 to CRS-350 Connection o CRS-300 t.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–4 4.2 Switch-to-Switch Connections If the User’s redundancy system requires the Comtech EF Data CRS-280 (70/140 M.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–5 Figure 4-1. Control Cable Connection Example for CRS-300 Æ CRS-280.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–6 Figure 4-2. Control Cable Connection Example for CRS-300 Æ CRS-280L.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–7 Figure 4-3. Control Cable Connection Example for CRS-300 Æ CRS-350.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–8 Figure 4-4. Control Cable Connection Example for CRS-300 Æ CRS-350 Æ CRS-280.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–9 Figure 4-5. Control Cable Connection Example for CRS-300 Æ CRS-350 Æ CRS-280L.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–10 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–11 4.3 CDM-570/570L Modem Connections o Control and Data Connections – CRS-300 to Modems o User Data Connections .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–12 4.3 CDM-570/570L M odem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing Traffic Modem.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–13 Figure 4-6. Data Cable Connection Example – CRS-300 to CDM-570/570L (Connections shown for RMI and TMIs 1, 3, .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–14 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–15 4.4 CDM-600/600L Modem Connections o Control and Data Connections – CRS-300 to Modems o User Data Connections .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–16 4.4 CDM-600/600L M odem Connections If adding a modem to an operating 1:N system, care needs to be taken to not interfere with the existing traffic. The cabling and power-up sequence must be correct to avoid contention in the system from the modem Tx carrier.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–17 Figure 4-7. Data Cable Connection Example – CRS-300 to CDM-600/600L (Connections shown for RMI and TMIs 1, 3, .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–18 4.4.2 User Data Connections – CRS-300 to User The User’s traff ic data from mul tiplexing equipment or a test data generator sh ould connect to the connectors labeled “User Data Interface” on the TMI(s).
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–19 Figure 4-8. Cabling Example for CRS-350 to CDM-600/600L (Connections shown for RMI and TMI 1 only).
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–20 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–21 4.5 CDM-625 Modem Connections o RMI/TMI Limitations and Considerations o Carrier-in-Carrier ® (CnC) Data Connec.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–22 4.5 CDM-625 Modem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing traffic. The cabling and power-up sequence m u st be correct to avoid contention in the system from the modem Tx carrier.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–23 Figure 4-9. CDM-625 to CDM-625 CnC ® Cable Connection Example (Connections shown for Redundant Modem and Traffi.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–24 4.5.3 Control and Dat a Connecti ons – CRS-300 to Modem Table 4-1 shows what TMI and applicable data and control cables are needed for each of the various data types.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–25 For specific details regarding the CA/WR0066 cable’s use as a TMI control and/or data cable, refer to the data connection cabling instructions that follow for each driving traffic data type.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–26 • DB-9F connecto r labeled “1:1 Cont rol” on the T raffic CDM -625(s).
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–27 4.5.3.4 EIA-422 Dat a Connections If EIA-422 is the driving traffic data type (refer to Figure 4-10 through Figure 4-12): First, connect the Control/Data Cable CA/WR0066 (for control/data purposes) between the Redundant CDM-625 and the RMI (see Sect.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–28 Then, connect and secure the Control/Data Cable CA/WR0066 (for data purposes) between the TMI(s) and Traffic CDM.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–29 4.5.3.8 Ethernet Data Connections I MPO RT AN T 1 . When using the CDM -625 in Dedicated M anagement Ethernet Po.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–30 NO TE 1. Where the traffic data type is Ethern et, the User can only u se one of fou r Ethernet ports, in Ethernet Bridge M ode, on the CDM-625 rear panel.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–31 Fi g ur e 4 -1 0 . CRS-300 to CDM-625 Cable Con nection Exa mple – G.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–32 Figure 4-11. CRS-300 to CDM-625 Cable Connection Example – G.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–33 Figure 4-12. CRS-300 to CDM-625 Cable Connection Example – Quad E1-driven Configuration (Connections shown for.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–34 Figure 4-13. CRS-300 to CDM-625 Cable Connection Example – Sub-Mux TMIs 3 & 9 (Connections shown for RMI a.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–35 4.5.4 Dat a Connections – CRS-300 to User The User’s t r a ff ic data fro m an external router , multiplexing equipment or test data generator should connect to the connectors on the TMI la beled “User Data Inte rface”.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–36 The choices from this display are: • Normal: CDM-625 • Emulate: CDM-600 , and • Emulate: CDM-600L . Once the desired emulation mode is selected, press the ENT button to save the configuration .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–37 Figure 4-15. Data Cables - CRS-300 to CDM-625 (CDM-600/600L Emulation Mode) (Connections shown for RMI and TMIs .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–38 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–39 4.6 CDM-Qx/QxL Modem Connections o RMI/TMI Limitations and Considerations o EIA-485 Connections – CRS-300 to M.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–40 4.6 CDM-Qx/QxL Modem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing traffic .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–41 Figure 4-16. EIA-485 Multi-drop Cabling Example – CRS-300 to CDM-Qx/QxL (Connections shown for RMI and TMIs 1 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–42 4.6.3 Control Y -Cable Connections – CRS-300 to Modems All traffic data configurations require the Control Y-C.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–43 Next, connect and sec ure the (4X) Quad E1 TMI Data Cables (C EFD P/N PP/CAT5FF7FTGY) as follows: • RJ-48 conn.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–44 Figure 4-17. Control Y-Cables and EIA-530/-232 Data Cables – CRS-300 to CDM-Qx/QxL (Connections shown for RMI .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–45 Figure 4-18. Control Y-Cables and Balanced G.703 Data Cables – CRS-300 to CDM-Qx/QxL (Connections shown for RM.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–46 Figure 4-19. Control Y-Cables and Unbala nced G.703 Data Cables – CRS-300 to CDM-Qx/ QxL (Connections shown fo.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–47 Figure 4-20. Control Cables and HSSI Data Cables – CRS-300 to CDM-Qx/QxL (Connections shown for RMI and TMI 1 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–48 Figure 4-21. Control Cables and Quad E1 Data Cables – CRS-300 to CDM-Qx/QxL (Connections shown for RMI and TMI.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–49 4.7 CDM-700 Modem Connections o Interface Combinations o Control Cable Connections – CRS-300 to Modems o Seria.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–50 4.7 CDM-700 Modem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing traffic.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–51 2. The Traffic CDM-700 must have the same interf ace cards in each slot as any of the other Traffic CDM-700s have, or a blank panel installed. 3. OC3 Optical TMI is not currently available.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–52 4.7.5 Ethernet T raffic Dat a Connect ions - CRS-300 to Modems To handle Ethernet traffic data, the User has two.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–53 Figure 4-22. Control and Traffic Data Cables Example #1 – CRS-300 to CDM-700 (Connections shown for RMI and TM.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–54 Figure 4-23. Control and Traffic Data Cables Example #2 – CRS-300 to CDM-700 (Connections shown for RMI and TM.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–55 Figure 4-24. CDM-700 IP Connections – Wired-thru Example #1 (Connections shown for RMI and TMIs 1, 3, and 8 on.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–56 Figure 4-25. CDM-700 IP Connections – Wired-thru Example #2 (Connections shown for RMI and TMIs 1, 3, and 8 on.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–57 Figure 4-26. CDM-700 IP Connections – Wired-around Example #1 (Connections shown for RMI and TMIs 1, 3, and 8 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–58 Figure 4-27. CDM-700 IP Connections – Wired-around Example #2 (Connections shown for RMI and TMIs 1, 3, and 8 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–59 4.8 CDM-710 Modem Connections o Interface Combinations o Control Cable Connections – CRS-300 to Modems o Seria.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–60 4.8 CDM-710 Modem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing traffic.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–61 4.8.3 Control Cable Connections – CRS-300 to Modems The Control Cable CA/WR12361-1 provides the se rial communication path between the Switch and the modems and controls the modem’s external Tx IF-mute control line, and is therefore always required.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–62 Figure 4-28. Control and Data Cables Example #1 – CRS-300 to CDM-710 (Connections shown for RMI & TMIs 1 a.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–63 Figure 4-29. Control and Data Cables Example #2 – CRS-300 to CDM-710 (Connections shown for RMI & TMIs 1 a.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–64 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–65 4.9 CDM-710G Modem Connections o Interface Combinations o Control Cable Connections – CRS-300 to Modems o Seri.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–66 4.9 CDM-710G Modem Connections If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing traffic.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–67 4.9.3 Control Cable Connections – CRS-300 to Modems The Control Cable CA/WR12361-1 provides the se rial communication path between the Switch and the modems and controls the modem’s external Tx IF-mute control line, and is therefore always required.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–68 Figure 4-30. Control and Data Cables Example #1 – CRS-300 to CDM-710G (Connections shown for RMI & TMIs 1 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–69 Figure 4-31. Control and Data Cables Example #2 – CRS-300 to CDM-710G (Connections shown for RMI & TMIs 1 .
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–70 Notes:.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–71 4.10 SLM-5650/5650A Modem Connections o Control Cable Connections – CRS-300 to Modems o Traffic Data Connectio.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–72 4.10 SLM-5650/5650A Modem Connecti ons If adding a modem to an operating 1: N system, care needs to be taken to not interfere with the existing Traffic Modem.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–73 • HSSI (HD-50F) connector labeled “J2” on the RMI or “J3” on the TMI(s), to • HSSI (HD-50F) connector labele d “J7 HSSI” on the SLM-5650/ 5650A.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–74 4.10.4 User Data Connections – CRS-300 to User The User’s traffic data from an external rout er, multiplexing equipment or test data generator should connect to the connectors on the TMI la beled “User Data Inte rface”.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–75 Figure 4-32. Control and Data Cables Example #1 – CRS-300 to SLM-5650/5650A (Connections shown for RMI & T.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–76 Figure 4-33. Control and Data Cables Example #2 – CRS-300 to SLM-5650/5650A (Connections shown for RMI & T.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–77 Figure 4-34. Control and Data Cables Example #3 – CRS-300 to SLM-5650/5650A (Connections shown for RMI & T.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–78 Figure 4-35. Cabling Example for CRS-350 to SLM-5650/5650A (Connections shown for RMI and TMI 1 only).
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–79 4.11 IF Cable Connections o Single Transponder IF Connections o Multiple Transponder IF Conn ections (Using IF S.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–80 4.11 IF Cable Connections There are two different possible IF configurations: single transponder and multiple transponders. 1. For a single transponder, all the m odems are connecte d to the same user Up/Dow nconver ter.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–81 Figure 4-36. IF Cabling Example 1 – Single Transponder Configuration (Without CRS-280/280L – Connections sho.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–82 4.11.2 Multiple T ransponder IF Connections (U sing IF Sw itch) The CRS-280 IF (70/140 MHz) Switch provides complete isolation of the IF signals. The Redundant Modem’s IF signals are routed to the Traffic Modem’s IF path when the RMI is online.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–83 Figure 4-37. Multiple Transponder IF Connection Cabling Example (CRS-280 and CDM-6 00 s shown, connections for R.
CRS-300 1:10 Redundanc y Switch Revision 16 Cables and Connections MN/CRS300.IOM 4–84 Notes:.
5–1 Chapter 5. MODEM, RMI/TMI, AND SWITCH CONFIGURA TION 5.1 Overview IMPO R T AN T In order to avoid damage to the modems and CRS-300 switch, it is important for the user to follow this sequence of confi guration: First, connect cables betwe en the (powered OFF) modems and Switch as outlined in Chapter 4.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–2 5.2 Modem Configuration 5.2.1 Modem Power Connect the power cords of each modem to a power supply and turn all modems ON .
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–3 changing configuration settings using the fr ont panel keypad and menus, refer to the Front Panel Operation chapter in the pertinent modem’s Installation and Operation M anual .
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–4 5.2.4.2.1 CDM-625 Redundancy Configurat ion wit h Carrier-in-Carr ier ® If Carrier-in-Carrier.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–5 5.2.4.3 Switch to CDM-700, CDM-710, CDM -710G Redundancy Configurati on IMPO RT A NT Only the Rev. A chassis (i.e., chassis with round -buttoned keypad) and la ter versions of the CDM-700/ 710 offer 1 :N redundancy operation.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–6 5.2.4.4 Sw itch to SLM-5650/5650A Redundancy Configuration 5.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–7 Furthermore, in Ethernet Bridge Mode, th e parameter backup mechanism is unsupported; therefore, the User must make sure that all pa rameters match in the Online and Offline modems.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–8 5.2.4.5 Sw itch to CDM-Qx/QxL Redundancy Configuration The CRS-300-to-CDM-Qx/QxL redundancy configur ation uses an external EIA-485 multi-drop communication cable.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–9 Figure 5-2. CDM-Qx/QxL / CRS-300 EIA-485 Sc heme Note: In this example, the EIA-485 offset address doe s not affect Modem #1, so the offset can be 1-99 without affecting other Modems’ E IA-485 addresses.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–10 5.3 RMI Card Configuration Reference IMPO RT A NT The RMI Card Confi g uration Reference is provided for RMI identification purposes only. All RMI cards are shipped pre -confi g ured and do not requir e adjustments by the user.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–11 5.4 TMI Card Configuration Reference The following paragraph describes settings for an y of the individual TMI cards that may require jumper or other installation settings on the card.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–12 Table 5-2. CRS-316 Jumper ‘JP1’ Settings User Interface Jumper ‘JP1’ Modem Control Si.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–13 5.4.2 EIA-232/- 422, V .35 Interfaces vi a the CRS-320 an d CRS-340 TMIs Jumpers JP1 and JP2 on the CRS-320 (obsolete) and CRS-340 TMI cards set th e functionality of the control signals DTR/DSR and RTS/CTS .
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–14 Table 5-5 illustrates the control signal configuratio n JP1 and JP2 jum per settings available on the CRS-320 (obsolete) and CRS-340 TMIs: Table 5-5.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–15 5.4.3 HSSI Interfaces via the CRS- 336 TMI Figure 5-8 and Figure 5-9 depict the CRS-336 TMI (CE FD P/ N P L/ 12499 Rev B or later). Jumper s JP1 & JP2 setti ngs are fa ctory-shipped as indicated.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–16 Table 5-6. CRS-336 Jumper ‘JP1’ Settings User Interface Jumper ‘JP1’ Modem Control Si.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–17 5.4.4 HSSI Interface vi a the CRS-370 TMI Jumper J2 on CRS-370 TMI Card selects the functionality of the control signals CA and TA . Figure 5-10 shows this TMI as shipped from the factory, with the J2 jum per open.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–18 5.5 Switch Configuration 5.5.1 Switch Power Connect the power cords as follows: Step Procedure 1 Ensure that both power supply switches are in the off position befo re connecting the power supply power cord s.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–19 5.5.2 Flash Up dating The CRS-300 eliminates the need for updating firm ware by physically replacing EPROMs. Instead, the CRS-300 uses ‘flash memory’ technology internally.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–20 3. Download the correct firmware file to this temporary folder as shown in Figure 5-11 .
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–21 6. Run the Upload utility. The User should follow the instructions presented on th e screen, and the upload will take place automatically.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–22 To deactivate a modem, see Chapter 7.4.5 (CONFIG) ACTIVE MODEMS . 5.5.3.2 V erify Connection T o Each Active Modem The LEDs are arranged in columns corresponding to each m odem, and should accurately reflect the status of each.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–23 To enable Auto mode: Step Procedure 1 Go to the CONFIG Æ AUT O menu an d turn on AU TO mode. 2 Verify that the Stored Event LED stops blinking.
CRS-300 1:10 Redundanc y Switch Revision 16 Modem, RMI/TMI, and Switch C onfiguration MN/CRS300.IOM 5–24 5.5.3.4.2 Set Restore Holdoff Period The " Restore Holdoff " setting, which is also.
6–1 Chapter 6. CONNECT OR PINOUTS 6.1 CRS-230 Controller Connectors 6.1.1 IF Switch Control – DB-25M Connecto r The DB-25M IF Switch Control conn ector is cabled directly to the corresponding connector on the CRS-28 0 or CRS-350, if used.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–2 6.1.2 485 Pass-Through – DB- 9F Connector Table 6-1 ind icates the pinout for the DB-9F 485 Pass-Through connector, used only with the CDM-Qx/QxL modems.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–3 6.1.4 System Alarms – DB-25F Connector Table 6-3 indi cates the pin out for the DB-25F TMI System Alarms connector.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–4 6.2 TMI User Dat a Connectors 6.2.1 EIA-232/422/V .35 – DB-25F Connector (CRS-316) Table 6-4 indicates the pinout for the DB -25F TMI User Data Interface connector (RS232/422/V.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–5 6.2.2 EIA-232/422/V .35/L VDS – DB-25F Connector (CRS-320/340) Table 6-5 in d icates the pinout for the DB-25F TMI User Data Interface connector (RS232/422/V.35/LVDS): J1 on the CRS-320 (obsol ete), and J2 on the CRS-340.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–6 6.2.3 ASI – BNC Connectors (CRS-325) Table 6-6 indicates the TMI User Data I nterface BNC connectors (ASI) on the CRS-325. Table 6-6. ASI Connectors BNC Connector TMI CRS-325 Ref Des Description Direction Tx J2 Tx, ASI In Rx J4 Rx, ASI Out 6.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–7 6.2.5 Balanced G .703 – DB-15F Conn ector (CRS-325/330/340) Table 6-8 indicates the pinout for the DB-15F TMI User Data Interface connector (Balanced G.703): Located at J6 on the CRS-325; J1 on the CRS-330; and P1 on the CRS-340.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–8 6.2.6 Unbalanced G .703 – BNC Co nnectors (CRS-325/330/340) Table 6-9 indicates the TMI User Data Interface BNC connectors (Unbalanced G.703) on the CRS-325, CRS-330 and CRS-340.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–9 6.2.8 HSSI – HD-50F Connector (CRS-336/370) Table 6-11 is for the HD-50F SCSI-II TMI User D ata Interface connector (HSSI): J2 on the CRS-336, and J1 on the CRS-370. Table 6-11.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–10 6.2.9 10/100/1000 Ether net – RJ-45F Connector (C RS-316/336) Table 6-12 i n dicates the pinout for the RJ-45F TMI User Data Interface connector (10/100/1000 Ethernet): J4 on the CRS-316 and CRS-336.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–11 6.2.10 Quad E1 – RJ-48F Connectors (CRS-3 65) Table 6-13 i n dicates the pinout for the four (4) RJ-48F TMI User Data Interface connectors (Quad E1): Ports 1 through 4 on the CR S-365.
CRS-300 1:10 Redundanc y Switch Revision 16 Connector Pinouts MN/CRS300.IOM 6–12 6.2.11 Quad E1 – DB-9F Connectors (CRS-3 65D) Table 6-14 a nd Table 6-15 indicate the pinout for the two (2) DB-9F TMI User Data Interface connectors (Quad E1): J2 and J3 on the CRS-365D.
7–1 Chapter 7. FRONT P ANEL OPERA TION 7.1 Introduction Modem Status Unit Status Vacuum Fluorescent LED Indicators LED Indicators Keypad Display (VFD) See 7.1.2.2 See 7.1.2.1 See 7.1.1 See 7.1.3 Figure 7-1. CRS-300 Front Panel The User can fully control and monitor the opera tion of the CRS-300 from the front panel, using the keypad and display.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–2 7.1.1 Front Panel Keypad The CRS-300 front panel keypad contains six individual key switches mounted behind a sealed membrane overlay. The keys have a positive "click" action for tactile feedback.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–3 7.1.2 Front Panel LED Indicators 7.1.2.1 Unit Status LED Indicators The behavior of the three front panel LEDs adjacent to th e keypad, w hich indicate operational status of the CRS- 300 switch unit, are described below in Table 7-1 : Table 7-1.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–4 7.1.2.2 Modem Status LED Indicators The behavior of the six front pane l LEDs which i ndicate operational status f.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–5 7.1.3 Front Panel Vacuum Fluorescent Display (VFD) The Front Panel V acuum F luorescent D isplay (VFD) is an active display showing two lines of 24 characters each. It produces a blue light, the brightness of which can be controlled by the user.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–6 7.2 CRS-300 Menu Str ucture Figure 7-2 shows the menu structure of the CRS-300. The menu, branches, and applicable submenus are described in detail in the chapter sections that follow.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–7 7.3 SELECT (T op-Level) Menu SELECT: CONFIG INFO MONITOR STORE/LD UTIL Move the cursor to the desired choice using the ◄ ► arrow keys, then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–8 7.4.1 CONFIG: MANUAL MANUAL SELECT: BRIDGE:02 BACKUP:02 The User may manually select which Traffic Mode m is to be bridged or backed-up. When the Switch is in Manual mode ( Auto is OFF ), both of these selections are available.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–9 7.4.3 CONFIG: OPTIONS OPTIONS: PRIORITY HOLDOFFS ALARM-MASK These options define how the Switch wil l react to vari ous fau lts. Select PRIORITY , HOLDOFFS , or ALARM-MASK, using the ◄ ► arrow keys, then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–10 CONFIG: OPTIONS Æ ALARM-MASK If ALARM-M ASK is selected: ALARM MASK: MODEM-ALARMS SW-ALARMS AUDIO (ENTER) Select MODEM-ALARMS , SW-ALARMS , or AUDI O , then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–11 7.4.4 CONFIG: REMOTE SELECT REMOTE CONTROL: LOCAL REMOTE (PRESS ENT) Select LOCAL or REMOTE using the ◄ ► arrow keys, then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–12 EDIT SWITCH BUS ADDRESS: 3000 (PRESS ENTER) The value of t he address is changed using the ▲ ▼ arrow keys. The User should then press [ENT] . Note: T his setting does not affect th e internal com munications be tween the Switch and the m odems.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–13 • If desired, the User can go to Manual mode, switchover the active traffic from the Redundant Modem onto the Traffic Modem, and then return to Auto mode.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–14 7.5.5 INFO: REMCONT (Remote Control Info) REM CNTL: ON RS232 ADDR:0000 9600 BAUD 8N1 This screen displays if the unit is in LOCAL or REMOTE mode, gives detai ls of the electrical interface type, the unit address, the baud rate, and data format.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–15 7.6.2 MONITOR: SW-ALARM The following are examples of possible Switch stat us displays, along with suggestions to assist the User in diagnosing the reason for the fault.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–16 The three-letter instruction code is indicated also to assist decoding the following proble m parameters: ► For the CDM-600L modem , the code is the hex value of the position of the pr oblem parameter within the MGC configuration code.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–17 ► For the CDM-Qx modem , the code is the decimal number indicating the problem parameter within its MG C config.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–18 7.6.3 MONITOR: STORED-EVENTS STORED EVENTS: VIEW CLEAR-ALL (PRESS ENTER) The User may select VIEW or CLEA R-ALL , using the ◄ ► arrow keys, then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–19 7.7 SELECT : STORE/LD (S tore or Load Configuration) STORE/LOAD CONFIG: STORE LOAD (PRESS ENTER) Select STORE or LOAD using the ◄ ► ar row keys , the n to press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–20 7.8 SELECT : UTILITY UTILITY: SET-RTC DISPLAY SWITCH-ID TEST RELAY (ENT) Select SET-RTC , DISPLAY , SWITCH-ID , or TEST REL A Y using the ◄ ► arrow keys, then press [ENT] .
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–21 7.8.4 UTILITY: TEST This is an excellent method to test the wh ole syst em before setting the Switch for automati c mode. The Switch suspends normal system polling and initiates a test: CONFIG TESTING……2 TM#: 1 OK TEST COMPLETE.
CRS-300 1:10 Redundanc y Switch Revision 16 Front Panel Operation MN/CRS300.IOM 7–22 Notes:.
A-1 Appendix A. CABLE DRAWINGS A.1 Introduction This appendix contains dr awings of cables used with the CRS-300. These cables are divided into three categories: User / Utility Cables, Control Cables, and Control / IF / Data Cables.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-2 A.2.1 EIA-530 to EIA-422 Data Cable Figure A-1 shows the cable drawing for EIA-530 to EIA-422/449 DCE convers ion for connections between th e Switch and the User data. Figure A-1.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-3 A.2.2 EIA-530 to V.35 Data Cable Figure A-2 shows the cable drawing for EIA-530 to V.35 DCE conversi on for connections between the Switch and the User data. Figure A-2. DCE Conversion Cable: EIA-530 to V.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-4 A.2.3 Switch Programming Cable Figure A-3 shows the cable required for a simple EIA-232 connection between the CRS-300 remote control port and a PC serial port. This cable is needed for Flash upgrading.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-5 A.3 Control Cables App. A FIG CEFD P/N DESCRIPTION USED WITH CRS-300 Æ REF Ch.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-6 A.3.1 Control Cable for CDM-625 Figure A-4 shows the control cable that connects the CDM-625 to the CRS-300.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-7 A.3.2 Standard EIA-485 Multi-drop Shie lded Cable, (15X) DB-9 Female Figure A-5 shows the standard EIA-485 Multi-drop Shie lded Cable. This cable is required to daisy-chai n t he CDM -Qx / QxL m o dems and Switch together for communication s.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-8 A.3.3 EIA-485 Cable Termination, (15X) DB-9 Male Figure A-6 shows the EIA-485 Cable Termination required for terminating the ends of the EIA-485 Multi-Drop Ribbon Cable (CA/RB11423-1) or EIA-485 Multi-Drop Shielded Cable (CA/WR11417-1).
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-9 A.3.4 EIA-485 Null Modem Cable, DB-9 Male Figure A-7 shows the EIA-485 Null Modem Cable required for the EIA-485 multi-drop for the CDM-Qx / QxL modems. This attaches to the DB-9F “485 Pass-through” connector on the CRS-230 controller module.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-10 A.3.5 Optional EIA-485 Multi-drop Ribbon Cable, (15X) DB-9 Female Figure A-8 shows the optional EIA-485 Multi-drop Ri bbon Cable. This cable is re quired to daisy-chain the CDM-Qx / QxL modems and Switch together for communications.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-11 A.3.6 Control ‘Y’ Cable for CDM-Q x and CDM-QxL with CnC ® Figure A-9 shows one of the two types of control cables required for th e CDM-Qx / QxL modems.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-12 A.3.7 Control Cable for CDM-700, CDM-710 Figure A-10 shows the control cable that connects the CDM-700 and CDM-710 modems to the CRS-300.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-13 A.3.8 Control Cable for SLM-5650/5650A Figure A-11 shows the control cable that connects the SLM-5650/5650A to the CRS-300.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-14 A.3.9 Control ‘Y’ Cable for SLM-5650/5650A to CRS-300 Figure A-12 shows the Control ‘Y’ Cable that c onnects th e SLM-5650/5650A to the CRS-300 RMI/TMI.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-15 A.4 Control / IF / Data Cables & Accessories App. A FIG CEFD P/N DESCRIPTION USED WITH CRS-300 Æ … Chp.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-16 App. A FIG CEFD P/N DESCRIPTION USED WITH CRS-300 Æ … Chp. 4 FIG USED FOR (TYPE) A-20 CA-00000 74 DB-44 M & DB-9M .
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-17 A.4.1 EIA-232/422, EIA-530 Control and Data Cable, DB-25 Figure A-13 shows the EIA-232/422, EIA-530 data cable for connection between the Switch and Mode m or between the Switch and the User data.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-18 A.4.2 Balanced G.703 Data Cable for CDM-570/570L, DB-15 Figure A-14 shows the DB-15 data cable for conn ection between the Switch and CDM-570/570L modem or between the Switch and the User d ata.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-19 A.4.3 Balanced G.703 Data Cable, DB-15 Figure A-15 shows the data cable for connection between the Switch and M odem or between the Switch and the User data. This cable is used with the CDM-600/600L, CDM-Qx / QxL, and SLM-5650/5650A m odems.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-20 A.4.4 Audio Data Cable, DB-9 Figure A-16 shows the cable used for handling Audio data betw een the CRS-350 ESC switch and CDM-600/600L modem.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-21 A.4.5 Balanced G.703 Data Cable for CDM-625 Figure A-17 shows the cable assembly used to connect the Balanc ed G.703 data between the Switch and the CDM-625 modem. Figure A-17.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-22 A.4.6 Quad E1 ‘Y’ Data Cable for CDM-625 Figure A-18 shows the cable assembly used to c onnect the Quad E1 data between th e CRS-310 RMI and the CDM-625 modem. Figure A-18.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-23 A.4.7 ASI / Balanced G.703 / IF Cable, BNC 75 Ω Figure A-19 shows the 75 Ω BNC cable used for the ASI and Balanced G.703 data connections between the CRS-300 and Modem .
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-24 A.4.8 Overhead Data Cable for CDM-625 Figure A-20 shows the multi-purpose cable assembly used to conne ct the CDM-625 modem to the CRS-350 ESC Switch.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-25 A.4.9 HSSI Data Cable, HD-50 Male Figure A-21 shows the HSSI data cable used for conn ections between the Switch and the Modem.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-26 A.4.10 Quad E1 Data Cable for CDM-Qx / QxL Figure A-22 shows the cable used to connect the Switch RMI (CRS- 305) to the redundant CDM-Qx / QxL Quad E1 interface. Figure A-22.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-27 A.4.11 Quad E1 / Gigabit Ethernet RJ-48 Connector Cable Figure A-23 shows the cable used for the CDM-Qx / QxL Quad E1 data connections, and Gigabit Ethernet connections for the CDM-700, CDM-710, and SLM-5650/5650A modems.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-28 A.4.12 G.703 Data Cable for CDM-700 Figure A-24 shows the cable used to connect the CRS-345 Switch TMI to the Traffic CDM-700 G.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-29 A.4.13 G.703 Data Cable for CDM-700 Figure A-25 shows the cable used to connect the CRS-306 Switch RMI to the Redundant CDM-700 G.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-30 A.4.14 IF Cable, BNC 50 Ω Figure A-26 shows the 50 Ω BNC cable used for connecting the Modem to the CRS-280 (70/140 MHz) IF Switch.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-31 A.4.15 Ethernet Data Cable for CDM-625 Figure A-27 shows the Ethernet Data cable used for connecting the CDM-625 to the CRS-300 RMI (CRS-310).
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-32 A.4.16 Multi-drop CnC ® Plus Shielded Data Cabl e for CDM-625, (11X) DB-9M Figure A-28 shows the DB-9 Multi-drop shielded data cable used for connecting the Redundancy-enabled CnC ® CDM-625 modems in a CRS-300 1:10 Redundancy system.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-33 A.4.17 Quad E1 Data Cable for CDM-625, DB-9 Figure A-29 shows the DB-9 data cable used for the Quad E1 data connections between th e CRS-365D TMI and the CDM-625 modem. Figure A-29.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-34 A.4.18 Quad E1 Data Adapter Cable for CDM-625 Figure A-30 shows the data cab le used to ad apt the Type ‘D’ 9-pin female Ba lanced G.703 or Auxiliary G.703 connectors to a stand ard Type ‘D’ 15-pin connector pair for Quad E1 o peration.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-35 A.4.19 Quad E1 Data Adapter Cable for CDM-625 Figure A-31 shows the data cab le used to ad apt the Type ‘D’ 9-pin female Balanced G.703 or Auxiliary G.703 connectors to a standard RJ-48 connector pair for Quad E1 operation.
CRS-300 1:10 Redundancy S witch Revision 16 Cable Drawings MN/CRS300.IOM A-36 A.4.20 T1/E1 Adapter for CDM-570/570L, -600/600L Figure A-32 shows the optional adapter used to convert the Type ‘D’ 15-pin fema le Balanced G.703 connector on the User side of the TMI to a standard RJ-48 female c onnector for T1/E1 operation.
B–1 Appendix B. ADDRESSING SCHEME INFORMA TION B.1 Introduction to Addressing A CRS-300 1:10 Redundancy Switch provides 1:10 redundancy; that is, it is capable of controlling up to 10 traffic modems and one redundant modem.
CRS-300 1:10 Redundanc y Switch Revision 16 Addressing Scheme Informa tion MN/CRS300.IOM B–2 B.2 Sw itch Addresses The permitted Switch remote control addresses are limited: • For EIA-485 connections, the only permitted addresses are 1000, 3000, 5000, and 7000.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–3 Figure B-1. CRS-300 Addressing Scheme Example: External EIA-232 with CDM-700/710, SLM-5650/5650A Modems.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–4 Figure B-2. CRS-300 Addressing Scheme Example: External EIA-485 with CDM-700/710, SLM-5650/5650A Modems.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–5 Figure B-3. CRS-300 Addressing Scheme Example: External EIA-232 with CDM-Qx/QxL Modems Note: 1:1 internal redundancy in EDMAC Slave mode is available only in firmware version 1.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–6 Figure B-4. CRS-300 Addressing Scheme Example: External EIA-485 with CDM-Qx/QxL Modems.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–7 Figure B-5. CRS-300 Addressing Scheme Example: External EIA-485 with CDM-Qx/QxL Modems, EDMAC Hub-to-Hub.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–8 Figure B-6. CRS-300 Addressing Scheme Example: External EIA-232 with CDM-570/570L, -600/600L, -625 Modems.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–9 Figure B-7. CRS-300 Addressing Scheme Example: External EIA-485 with CDM-570/570L, -600/600L, -625 Modems.
CRS-300 1:10 Redundancy S witch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–10 This page is intentionally blank..
CRS-300 1:10 Redundanc y Switch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–11 B.3.1 Setting Up Modems • Local Modem m , where m is modem position number (1 throug h 10) on Switch: o MCA = (Switch RCA) + (100 x m ) o Set EDMAC Framing on.
CRS-300 1:10 Redundanc y Switch Revision 16 Addressing Scheme Information MN/CRS300.IOM B–12 B.3.2 Setting Up T ransceivers IMPO R T AN T Configur e the modems f irst for EDMA C operation, setting up the Remote Control Address (RCA) for local units , and ESA (EDM AC addr esses ) for EDM AC modems.
C–1 Appendix C. REMOTE CONTROL C.1 Overview This appendix describes the protocol and mess age c ommand set for remote monitor and control of the CRS-300 1:10 Redundancy Switch.
CRS-300 1:10 Redundanc y Switch Revision 16 Remote Control MN/CRS300.IOM C–2 C.3 EIA-232 This is a much simpler configuration in which th e Controller device is connected directly to the Target via a two-wire-plus-ground connection.
CRS-300 1:10 Redundanc y Switch Revision 16 Remote Control MN/CRS300.IOM C–3 o To a local BUC or transceiver connected to a local modem; o To a distant end BUC or transceiver through the distant end modem .
CRS-300 1:10 Redundanc y Switch Revision 16 Remote Control MN/CRS300.IOM C–4 modem protocol and th e installed op tions. Consult the appropriate modem Installation and Operation Manual for further information.
CRS-300 1:10 Redundanc y Switch Revision 16 Remote Control MN/CRS300.IOM C–5 C.5.5 Instruction Code Qualifier This single character further qualifies the precedi ng instruction code.
CRS-300 1:10 Redundanc y Switch Revision 16 Remote Control MN/CRS300.IOM C–6 C.5.6 Optional Message Arguments Arguments are not required for all messages. Ar gum ents are ASCII codes for the characters 0 to 9 (ASCII codes 48-5 7), A to Z (ASCII co des 65-90), perio d (ASCII code 46) a nd comma (ASCII code 44).
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–7 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note tha.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–8 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note tha.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–9 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note tha.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–10 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note th.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–11 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note th.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–12 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note th.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–13 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note th.
CRS-300 1:10 Redundancy S witch Revision 16 Remote Control MN/CRS300.IOM C–14 Parameter Type Command (Code and qualifier) Arguments for Command or Response to Query Description of Arguments (Note th.
METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281 0.01094 6.214 x 10 -6 0.01 — — 1 inch 2.540 — 0.08333 0.2778 1.578 x 10 -5 0.254 — 25.4 1 foot 30.480 12.0 — 0.
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If you have not bought Comtech EF Data CRS-300 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Comtech EF Data CRS-300 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Comtech EF Data CRS-300 you will learn all the available features of the product, as well as information on its operation. The information that you get Comtech EF Data CRS-300 will certainly help you make a decision on the purchase.
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However, one of the most important roles played by the user manual is to help in solving problems with Comtech EF Data CRS-300. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Comtech EF Data CRS-300 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
