Cisco VG224 Hardware Installation Guide - Page 67

Appendix A Cable Specifications and Information Console and Auxiliary Port Cables and Pinouts Auxiliary Port to Modem Figure A-4 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM); Table A-3 on page A-5 lists the pinouts. Figure A-4 Auxiliary Port to Modem-Cable and Adapter RJ-45-to-DB-25 male adapter RJ-45 cable 14 1 MODEM CAB-5MODCM H11194 8 1 13 25 Table A-3 Auxiliary Port to Modem-Cable Pinouts (RJ-45 to DB-25) Auxiliary Port RJ-45-to-RJ-45 (DTE, RJ-45) Rollover Cable Signal RJ-45 Pin RJ-45 Pin RTS 1 8 DTR 2 7 TxD 3 6 GND 4 5 GND 5 4 RxD 6 3 DSR 7 2 CTS 8 1 RJ-45-to-DB-25 Adapter "MODEM" RJ-45 Pin DB-25 Pin 8 4 7 20 6 2 5 7 4 7 3 3 2 8 1 5 Modem Port (DCE, DB-25) Signal RTS DTR TxD GND GND RxD DCD CTS Alternative Connections to Terminal and Modem Your Cisco VG224 voice gateway ships with an RJ-45-to-RJ-45 rollover cable and two adapters for connection to a PC, a terminal, or a modem. If you want to use an RJ-45 straight-through cable or other adapters, see Table A-4 for usable cable and adapter combinations. Table A-4 Alternative Terminal and Modem Connections Cisco VG224 Port Connection RJ-45 Cable Type Adapter Console port to PC Auxiliary port to modem Straight-through Rollover1 Straight-through DCE, DB-9 female DCE2, DB-25, male DTE2, DB-25, male 1. An octal cable or RJ-45 breakout cable is equivalent to a rollover cable. 2. Modify the DB-25 adapter by removing the wire in pin 6 and placing it in the pin 8 position. OL-5006-04 Cisco VG224 Voice Gateway Hardware Installation Guide A-5