3Com CS/3000-48 Installation Manual

Contents

A-10 APPENDIX A: PIN ASSIGNMENTS* CS/3000 series servers ignore this signal.† Pin numbers in parentheses indicate loopback connections that may be necessary for some devices. The prewired adapters listed inTable A-9 include all loopback connections.* Pin numbers in parentheses indicate loopback connections that may be necessary for some devices. The prewired adapters listed inTable A-9 include all loopback connections.Dual-InputConfigurationSW/3000 software version 6.1 and later allows the use of both input controlsignals, enabling input DTR detection (for modem hangup) to be used atthe same time as input RTS detection (for hardware flow control). Thisdual-input configuration is described in “Software Version 6.1 and Later”.Use of both input control lines requires the use of specially wired adapters.Table A-12 shows part numbers for MOD-TAP adapters prewired for thispurpose. Table A-13 and Table A-14 show pin assignments for theseadapters. Behavior of the control output (RJ-12 pin 1) is determined by the-TERM FlowCtrlFrom and UseDCDout software parameters, whileinterpretation of the control inputs (RJ-12 pins 3 and 6) is determined byFlowCtrlTo and UseDTRin.Table A-10 D-Type Adapter Pin Assignments for Attachment to DCESession Control RTS/CTS Flow ControlRJ-12 Pin CS Signal RS-232 Signal RS-232 Pin RJ-12 Pin CS Signal RS-232 Signal RS-232 Pin1 DCD out RTS/DTR in 4-20 1 CTS out RTS in 42 RXD out TXD in 2 2 RXD out TXD in 23 DTR in DCD out 8 3 RTS in CTS out 54 TXD in RXD out 3 4 TXD in RXD out 35 SG SG 7 5 SG SG 76 Not used DSR* 6 6 Not used — —DSR/DTR (6-20)†Table A-11 D-Type Adapter Pin Assignments for Attachment to DTESession Control RTS/CTS Flow ControlRJ-12 Pin CS Signal RS-232 Signal RS-232 Pin RJ-12 Pin CS Signal RS-232 Signal RS-232 Pin1 DCD out DSR/DCD in 6-8 1 CTS out CTS in 52 RXD out RXD in 3 2 RXD out RXD in 33 DTR in DTR out 20 3 RTS in RTS out 44 TXD in TXD out 2 4 TXD in TXD out 25 SG SG 7 5 SG SG 76 Not used Not used — 6 Not used — —DTR/CTS 4-5 DSR/DCD/DTR (6-8-20)*CS3000BookFile Page 10 Tuesday, October 15, 1996 5:12 PM