Patton electronic MODEL 2707/I User Manual Page 1

USER MANUAL MODEL 2707/I G.703 NTU with 10Base-T Ethernet Interface SALES OFFICE(301) 975-1000TECHNICAL SUPPORT(301) 975-1007 Part# 07M2707I-UMDoc#

10 Switch S1 settings Table 1 shows the settings for DIP switch S1-1 thru S1-8. SW1-1 Line Coding: HDB3 (default) Use Switch SW1-1 to control the Net

11 The receiver recognizes these special violations and decodes them as zeros. This method enables the network to meet minimum pulse den-sity require

12 5.0 INSTALLATION Once the Model 2707/I is properly configured, it is ready to connect to the G.703 interface, to the Ethernet port, and to the pow

13 Connecting Dual Coaxial Cable (75 ohm) to the G.703 Network Refer to Figure 5 to make the proper connections. Figure 5. Rear panel, showing locat

14 Connecting the Twisted Pair (120 ohm) to the G.703 Network Refer to the pinout and signals chart in Figure 6 to connect the 120-ohm G.703 network

15 Figure 8. 10Base-T cross-over cable connection Connecting the 10Base-T Ethernet Port to a Hub The 10Base-T interface is configured as DTE (data t

16 DC Power. The 36-60 VDC DC to DC adapter is supplied with the DC version of the Model 2707/I. The black and red leads plug into a DC source (nom

17 6.0 OPERATION When the Model 2707/I has been properly configured and installed, it should operate transparently. This section describes power-up,

18 Table 2: LED descriptions LED Description E1 Link (Active Green) Solid green (On) indicates that the end to end E1 Link is up, signifying that

19 6.3 OPERATING LINE LOOPBACK (LL) The Line Loopback (LL) test checks the operation of the local Model 2707/I, and is performed separately on each

2 1.0 Warranty Information ... 4 1.1 Radio and TV Interference...

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.

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,

22 B.12 POWER SUPPLY 5 VDC external power supply 100–240VAC, 50–60Hz, 0.4A B.13 HUMIDITY Up to 90% non-condensing B.14 TEMPERATURE 0–50°C (32–122°

23 APPENDIX C FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # Description 2707/C G.703 NTU with a V.35 interface2707/D G.703 NTU with an X.2

24 Copyright © 2006Patton Electronics CompanyAll Rights Reserved.

3 B.9 Diagnostics ... 21B.10 Indicators ...

4 1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 2707/I components to be free from defects, and will—at our option—repair or replac

5 als Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at: • Tel

6 2.0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and

7 3.0 PPP OPERATIONAL BACKGROUND PPP is a protocol used for multi-plexed transport over a point-to-point link. PPP operates on all full duplex media

8 Figure 1. Cisco router with serial interface, configured as PPP Half Bridge. Figure 1 shows a typical Cisco router with a serial interface configu

9 4.0 CONFIGURATION The Model 2707/I features configuration capability via hardware DIP switches. This section describes all possible DIP switch confi