Instruction/ maintenance manual of the product 2707/I Patton electronic
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USER MANUAL MODEL 2707/I G.703 NTU with 10Base-T Ethernet Interface SALES OFFICE (301) 975-1000 TECHNICAL SUPPOR T (301) 975-1007 P ar t# 07M2707I Doc# 08625U2-001 Rev .
2 1.0 Warranty Information ................................................................. 4 1.1 Radio and TV Interference ............................................................ 4 1.2 CE Notice .................................................
3 B.9 Diagnostics ................................................................................. 21 B.10 Indicators .................................................................................... 21 B.11 Configuration .........................
4 1.0 W ARRANTY INFORMATION P atton Electronics warrants all Model 2707/I components to be free from def ects, and will—at our option—repair or replace the product should it f ail within one year from the first date of shipment.
5 als A uthorization number on the outside of the shipping container . This number ma y be obtained from Patton Electronics T echnical Ser vices at: • T el: +1 (301) 975-1007 • Email: support@patton.com • URL: http://www .patton.com Note P ackages received without an RMA number will not be accepted.
6 2.0 GENERAL INFORMATION Thank you f or your purchase of this P atton Electronics product. This product has been thoroughly inspected and tested and is warranted f or One Y ear par ts and labor .
7 3.0 PPP OPERATIONAL BACKGR OUND PPP is a protocol used f or multi-ple xed transport over a point-to-point link. PPP operates on all full duple x media, and is a symmetr ic peer-to- peer protocol, wh.
8 Figure 1. Cisco router with serial interface, configured as PPP Half Bridge. Figure 1 shows a typical Cisco router with a serial interf ace configured as a PPP Half Bridge. The router ser ial interf ace connects to the W AN via a 2707/C (V .35) E1 NTU and to the remote 2707/I with suppor t for PPP bridging.
9 4.0 CONFIGURATION The Model 2707/I f eatures configuration capability via hardware DIP s witches. This section describes all possible DIP s witch configurations of the Model 2707/I. 4.1 DIP SWITCH CONFIGURATIONS The Model 2707/I has an internal DIP switch that enables configur ation f or a wide range of applications.
10 Switch S1 settings T able 1 sho ws the settings f or DIP s witch S1-1 thru S1-8. SW1-1 Line Coding: HDB3 (default) Use Switch SW1-1 to control the Network Line Coding options. Set these options to be the same as the Line Coding given to y ou by your Service Provider .
11 The receiver recogniz es these special violations and decodes them as zeros . This method enables the network to meet minimum pulse den- sity requirements. Unless AMI is required in your application, HDB3 should be used whene ver possib le. • AMI .
12 5.0 INSTALLATION Once the Model 2707/I is properly configured, it is ready to connect to the G.703 interf ace, to the Ethernet por t, and to the power source. This section describes how to make these connections . 5.1 CONNECTING TO THE G.703 NETWORK AND ETHERNET LAN This section describes installing the G.
13 Connecting Dual Coaxial Cable (75 ohm) to the G.703 Netw ork Ref er to Figure 5 to make the proper connections . Figure 5. Rear panel, showing location of connectors Note The outer conductor of the coax cables are isolated from system ear th ground.
14 Connecting the T wisted Pair (120 ohm) to the G.703 Network Ref er to the pinout and signals chart in Figure 6 to connect the 120-ohm G.703 network channel.
15 Figure 8. 10Base-T cross-ov er cable connection Connecting the 10Base-T Ethernet P or t to a Hub The 10Base-T interf ace is configured as DTE (data terminal equipment), just like a 10Base-T netw ork interface card in a PC . Theref ore, it “e xpects” to connect to a 10Base-T Hub using a straight-through RJ-45 cable .
16 DC Power . The 36–60 VDC DC-to-DC adapter supplied with the DC ver- sion of the Model 2707/I plugs in a DC source (nominal 48 VDC) and plugs into the barrel power supply jac k on the rear of the 2707/I. Refer to Figure 10 to make the proper connection.
17 6.0 OPERATION When the Model 2707/I has been properly configured and installed, it should operate transparently . This section descr ibes power-up , LED sta- tus monitors, and the b uilt-in loopback test modes .
18 T able 2: LED descriptions LED Description E1 Link (Active Green) Solid g reen (On) indicates that the end to end E1 Link is up , signifying that the link is active .
19 6.3 OPERATING LINE LOOPBACK (LL) The Line Loopback (LL) test chec ks the operation of the local Model 2707/I, and is perf ormed separately on each unit. Figure 12. Line loopback f or a networ k ter mination application T o perform an LL test, set DIP s witch S1-2 to On .
20 APPENDIX A G.703 SPECIFICATIONS A.1 NETWORK DATA RATE 2.048 Mbps A.2 NETWORK CONNECTOR RJ-48C/Dual Coax BNC A.3 NOMINAL IMPEDANCE 75/120 ohm A.4 LINE CODING Selectable AMI or HDB3 A.5 LINE FRAMING G.703 (Unframed) A.6 CLOCKING Internal or Networ k (Receive Reco ver) A.
21 APPENDIX B ETHERNET 10BASE-T SPECIFICATIONS B.1 DTE INTERFACE 10Base-T on RJ-45F B.2 DTE DATA RATES 10 Mbps B.3 LAN CONNECTION RJ-45, 10Base-T , 802.3 Ether net B.4 PROTOCOL PPP (RFC 1661) with Bridging Control (RFC 1638) B.5 MAC ADDR ESS T ABLE SIZE 4096 entries B.
22 B.12 POWER SUPPLY 5 VDC external power supply 100–240V AC , 50–60Hz, 0.4A B.13 HUMIDITY Up to 90% non-condensing B.14 T EMPERATURE 0–50°C (32–122°F) B.
23 APPENDIX C F ACTOR Y REPLACEMENT P AR TS AND ACCESSORIES P atton Model # Description 2707/C G.703 NTU with a V .35 interface 2707/D G.703 NTU with an X.
24 Cop yright © 2006 P atton Electronics Company All Rights Reser ved..
An important point after buying a device Patton electronic 2707/I (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Patton electronic 2707/I 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 Patton electronic 2707/I - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Patton electronic 2707/I you will learn all the available features of the product, as well as information on its operation. The information that you get Patton electronic 2707/I will certainly help you make a decision on the purchase.
If you already are a holder of Patton electronic 2707/I, 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 Patton electronic 2707/I.
However, one of the most important roles played by the user manual is to help in solving problems with Patton electronic 2707/I. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Patton electronic 2707/I 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
