Patton-electronic X.21 Interfaces Bedienungsanleitung Seite 1

USER MANUAL MODEL 2707C, D G.703 NTU with V.35, X.21Interfaces SALES OFFICE(301) 975-1000TECHNICAL SUPPORT(301) 975-1007 Part# 07M2707-UMDoc# 08619U

9 4.0 INSTALLATION Once the Model 2707 is properly configured, it is ready to connect to the G.703 interface, to the serial port, and to the power so

10 Connecting the Twisted Pair (120 Ohm) to the G.703 Network The Model 2707 is equipped with a single RJ-48C jack for connections to a 120 Ohm twist

11 The DCE/DTE strap is located near the DB15 connector on the top side of the board. The arrows on the top of the strap indicate the configura-tion

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

13 5.0 OPERATION When the Model 2707 has been properly configured and installed, it should operate transparently. This sections describes power-up,

14 5.3 LOCAL LOOP DIAGNOSTICS The Model 2707 offers V.54 loop diagnostics. Use these diagnostics to test the NTU and any communication links. This t

15 APPENDIX AMODEL 2707, G.703 SPECIFICATIONS Network Data Rate: 2.048 MbpsNetwork Connector: RJ-48C/Dual Coax BNC (2707/D)Nominal Impedance: 75/120

16 APPENDIX BMODEL 2707, INTERFACE PIN ASSIGNMENT V.35 Interface(M/34F Female Connector)(DCE Configuration) Pin # Signal B SGND (Signal Ground)C RTS (

17 APPENDIX B - Continued V.35 TO V.35 (STRAIGHT-THROUGH CABLE) PIN OUTV.35 TO V.35 (CROSS OVER CABLE) PIN OUTPIN Function PIN Function PIN A Frame G

18 APPENDIX CMODEL 2707, INTERFACE PIN ASSIGNMENT X.21 Interface(DB-15 Female Connector)(DTE/DCE Configuration) Pin # Signal 1 Frame Ground2 T (Transm

1 TABLE OF CONTENTS 1.0 Warranty Information ... 2 1.1 FCC Information ...

19 APPENDIX DMODEL 2707, FACTORY REPLACEMENT PARTSAND ACCESSORIES Copyright © 2006Patton Electronics CompanyAll Rights Reserved. Model # Description

2 1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 2707 components to be free from defects, and will—at our option—repair or replace

3 1.3 SERVICE All warranty and nonwarranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Retur

4 2.0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested a

5 3.0 CONFIGURATION The Model 2707 features configuration capability via hardware DIP switches. This section describes all possible DIP switch config

6 Figure 2. Close up of configuration switches Switch SW1-1 through SW1-8Switch SW1-1 Line Coding: HDB3 (default) Use Switch SW1-1 to control the N

7 Options: HDB3, AMIHDB3: In this line coding, the transmitter substitutes a deliberate bipolar violation when excessive zeros in the data stream

8 SW1-6 and SW1-7 Clock Modes Use Switches SW1-6 and SW1-7 to configure the 2707 for internal, external, or receive recover clock mode. SW1-8: Enable/