Instruction/ maintenance manual of the product DSU 56 ADTRAN
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DSU 56/64 Data Serv ice Unit User Manual P art N umber 1200062L1 61200062L 1-1E May 2001.
901 Ex plore r Boulevar d P .O. B ox 140000 Huntsv ille, AL 35814 -4000 (256 ) 963-800 0 © 2001 ADTRAN, Inc. All Ri ghts Res erved. Printed in U.S.A..
iii The following conventions are used in this manual. Important Sa fety Instructions When usin g your telephon e equipment, plea se follow these bas ic safety p recau tions to red uce the risk of fire, electrical shock, o r personal injury: 1.
iv Affida vit Requirements f or Connection to Digital Services • An af fidavit is requir ed to be given to the telephone company whenever digital terminal equipmen t without encoded analog content a.
v Affidavi t f or Connection of Customer Premises Equipment to 1.544 MBPS and/ or Subrate Digital Services For the w ork to be perf ormed in the cert ified terr itory of _________ _____ (telco name) S.
vi ( ) D. In lieu of the proceeding training r equirements, the operator(s)/maintainer(s ) is (ar e) under t he contr ol of a supervisor trained in accor dance with _____ _________ _ (cir cle one) above.
vii FCC r egulations r equir e that the following in formation be p r ovided in thi s manual: 1. This equipment complies w ith Part 68 of the FCC rules. On the bottom of the equipment housing is a label that shows the FCC registration number and Ringer Equivalence Number (R EN) for t his equipment , if applicable.
viii Federal Communications Commission Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class A dig- ital device, pursuant to Part 15 of the FC C Rules.
ix Canadian Equipment Limitations Notice: The Canadian Indus try and Science Canada label identifies certified equip- ment. This certif ication mean s that the equipment meets certain tele communic ations network protective, operational, and safety requir ements.
x Limited Pr oduct W arranty ADTRAN warrants th at for five (5) years f rom the date o f shipment to Customer , all products manufactur ed by ADTRAN will be fr ee fr om defects in materia ls and work- manship .
xi Customer Service, Produ ct Support Information, and T ra inin g ADTRAN will replace o r repair this product within five years from the date of ship- ment if the product do es not meet its publis hed specification, or if it fai ls while in ser- vice.
xii Identify the RMA number clearly on the package (below address), and return to the fol- lowing a ddress: ADTRAN Custom er and Product S ervice 901 Explo rer Blvd. Hunt sv i lle, Al abama 35806 RMA # ________ _____ Trai ni ng The Ente rp ris e N etw or k (EN) Te chni c al Tra ini ng Dep art me nt of fers training on our most popular pro ducts.
61200062L1-1 DSU 56/64 User Manual xiii T ab le of Contents List of Figures ............. ........... ................. ................. ................. ................. ................. .. ....... xv List of Tabl es ............... ........... .
Table of Contents xiv DSU 56/64 User Manual 61200062L1-1 Carrier Detect (CD) - SE 4 ............... ................. ................. ................. .................. 2-3 Down - Normal .............. ..... ...... ..... ................. ........
61200062L1-1 DSU 56/64 User Manual xv List of Figures Figure 1- 1. DSU 56/64 Unit .................. ................. ........... ................. ................. .............. 1-2 Figure 1- 2. DSU 56/64 Rear Panel ............ ................. .
List of Figures xvi DSU 56/64 User Manual 61200062L1-1.
61200062L1-1 DSU 56/64 User Manual xvii List of T ab les Table 2-1. Default Option Switch Settings ......... ................. ................. ................. ........ 2-5 Table A-1. Pinouts for RJ-4 8S Network Connections .............. .........
List of Tables xviii DSU 56/64 User Manual 61200062L1-1.
61200062L1-1 DSU 56/64 User Manual 1-1 Chapter 1 Introduction PR ODU CT OVERVIE W The ADTRAN D SU 56/64, sh own in Figur e 1-1 on page 1- 2 , is a technologicall y advanced, h igh performance D ata Se.
Chapter 1. Introduction 1-2 DSU 56/64 User Manual 61200062L1-1 FRONT P ANEL As s hown in Figure 1-1, t he front pa nel of th e DS U 56/64 co ntain s eleven light emitting di ode (LED) indicators that di splay DTE interface, networ k, and test sta tus.
Chapter 1. Introduction 61200062L1-1 DSU 56/64 User Manual 1-3 T est Stat us/Er ro r (Y ellow/Red) T ests defined by the above indicators are explained in greater detail in Chapter 3, Te s t M o d e s on page 3 -1.
Chapter 1. Introduction 1-4 DSU 56/64 User Manual 61200062L1-1 REAR P ANEL The r ear panel of the DSU 56/6 4 is sh own in Figur e 1-2. P RIMARY V.35 , a thirty-four pin connector , provides the synchronous DT E int e rfa ce . The eight-pi n modular jack (RJ-48S) labeled T ELCO connects the DSU 56/ 64 to t he DDS n etwork.
61200062L1-1 DSU 56/64 User Manual 2-1 Chapter 2 Installation UNPAC K, INSPECT, P OWER UP Car efu l ly in s pect the DSU 56/64 fo r any shippi ng dam ages. If damage is suspecte d, fi le a claim immediately with the ca rrier and then conta ct ADTRAN Custo mer and Pr oduct Servic e (CAPS).
Chapter 2. Installation 2-2 DSU 56/64 User Manual 61200062L1-1 Po w e r U p The DSU 56/64 is equipped with a captive six-foot power cord that is terminated with a three-prong plug for connecting to a grounded power receptacle. CONFIGURATION The DSU 56/64 has eight options for contr olling the o peration of both the network and DTE interfaces.
Chapter 2. I nstallation 61200062L1-1 DSU 56/64 User Manual 2-3 Antistream - S W 3 The Antistream option is used to select the antis tr eam time ou t. The antistream time out is the maximum time the D SU 56/64 is allo wed to transmit data from the DT E into the netw ork.
Chapter 2. Installation 2-4 DSU 56/64 User Manual 61200062L1-1 Remote Digital Loopbac k (RDL) - SW 6 Down - Enable The DSU 56/6 4 accepts the industry standa rd V .54 R DL command fro m the far end of the cir cu it. Up - Disable The DSU 56 /64 does not r espond to the V .
Chapter 2. I nstallation 61200062L1-1 DSU 56/64 User Manual 2-5 NET W ORK CONNEC TIO NS This interface cons ists of four leads tha t are paired to provide separate transmit and rec eive circuits. The four leads a re pr ovided on the eight-positi on modul ar jack DSU RJ-48S labeled T ELCO on the rear panel of the DSU 56/64.
Chapter 2. Installation 2-6 DSU 56/64 User Manual 61200062L1-1.
61200062L1-1 DSU 56/64 User Manual 3-1 Chapter 3 T est Modes In addition to a self-test mode, the DSU 56/ 64 has other extensive test modes which are designed to help is olate problems to specifi c components of the communications circuit.
Chapter 3. Test Modes 3-2 DSU 56/64 User Manual 61200062L1-1 If an E PROM C HECKSUM failure is detected during self test, CS , ALM , PTRN , and E RROR indica tors al l flash a t the end of the self test.
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-3 T o initiat e t he DTE O NL Y tes t, perform the follow ing steps: 1. Press S ELECT on ce to turn on the DTE test in dicator . 2. Press T EST w hile the test indicator is o n. 3. T o terminate the test, press T EST .
Chapter 3. Test Modes 3-4 DSU 56/64 User Manual 61200062L1-1 Figure 3-2. DTE with T P Test Diagram The in terna l test pa ttern gener ator an d detec tor of the DSU 56/64 operate with a 2047 data pattern. When this test is initiated, the test pattern detector examines the rece ive data stream until synchronization to the 2047 p attern occurs.
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-5 56/64 from the remote site over the actual commu nications circuit. T esting from t he remote end of th e circuit is performed with test data generated by the remote DSU or terminal type test equipm ent.
Chapter 3. Test Modes 3-6 DSU 56/64 User Manual 61200062L1-1 LOOP ON LY T EST (RT) The L OOP O NLY test or R EMO TE L OOPBACK test (RT) is used to t est the loop interface and a major portion of the DTE interface of the local DSU 56/64 from the remote site over the actua l digital data circuit.
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-7 F AR END T ESTS Remote Digital Wh en th e RDL test is i nitiated at th e local DSU 56/ 64, it comman ds the remote DSU into loopback with the industry standard V .
Chapter 3. Test Modes 3-8 DSU 56/64 User Manual 61200062L1-1 T est P attern (PTRN) When the PTRN test is initi ated, the local DSU 56/64 uses the integral test pattern gen erator to transmit a standard 2047 test pattern to the DSU o n the far end of the cir cuit.
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-9 REMOTE T ESTS The DSU 56/64 responds to three remotely activated tests. • Remot e Digital Loopback ( RDL) •C S U L o o p b a c k ( L L ) • DSU Loopback (R T) The RDL test is initiated by a remote DSU and causes the local DSU 56/64 to loopba ck.
Chapter 3. Test Modes 3-10 DSU 56/64 User Manual 61200062L1-1.
61200062L1-1 DSU 56/64 User Manual A-1 Append ix A Pinouts T able A-1. Pinouts for RJ-48S Network Connections Pin Number Function Signal Direction 1 Transmit Data (R) From Custome r to Network Interfa.
Appendix A. Pinouts A-2 DSU 56/64 User Manual 61200062L1-1 T able A-2. V .35 DTE Pinouts Pin CC ITT Descri ption A 101 Protect ive Ground B 102 Signal G round (SG ) C 105 Request to Send (RS) D 106 Cl.
61200062L1-1 DSU 56/64 User Manual B-1 Append ix B Specifications SPECIFICATIONS AND FEATURES The DSU 56 /64 is a singl e stand-al one unit d esigned to be used either on a desktop or mounted o n a wall. This section describes the standard specification s and features incorporat ed in the D SU 56/64.
Appendix B. Specif ications B-2 DSU 56/64 User Manual 61200062L1-1 Diagnostics Network test cente r activa ted: • CSU loopback on sea ling current r eversal in local loop • DSU loopback User act ivate d: • S e l f t e s t , • Local lo opback, • V .
61202062L1-1 DSU 56/64 User Manual Inde x-1 Inde x A ACES help desk, xi affidav it connecti on for di gital se rvices, iv connec tion of CPE e qui p m ent, v antistrea m - SW-1, 2-3 Applic ation s eng.
Index Inde x-2 DSU 56/64 User Manual 61202062L1-1 remote test s 3-9 repair an d retur n informatio n, xi RJ-48S net work connections, pinouts, A- 1 RMA requ ests xi S safety in st ructio ns, iii scram.
An important point after buying a device ADTRAN DSU 56 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ADTRAN DSU 56 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 ADTRAN DSU 56 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ADTRAN DSU 56 you will learn all the available features of the product, as well as information on its operation. The information that you get ADTRAN DSU 56 will certainly help you make a decision on the purchase.
If you already are a holder of ADTRAN DSU 56, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ADTRAN DSU 56.
However, one of the most important roles played by the user manual is to help in solving problems with ADTRAN DSU 56. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ADTRAN DSU 56 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
