Installation guide

A-35
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Appendix A System Specifications
Cabling Summary
UFI X.21 and V.35 DCE Port Pin Assignments
Table A-28 lists the UFI X.21 and V.35 DCE pin assignments at the DB-60 connector on the card.
6/19 XTC DTE Output External transmit clock
4/17 DTR DTE Output Data terminal ready
10/23 DSR DCE Input Data set ready
11 RTS DTE Output Request to send
24 CTS DCE Input Clear to send
12 LLB DTE Output Local loopback command
13 RLB DTE Output Remote loopback
26 TM DTE Output Test mode
20 SG Both — Signal ground
25 DCD DCE Input Data carrier detect
1 — DCE Input Port in DCE mode
Table A-27 UFI X.21 and V.35 DTE Connector Pinouts (continued)
Pin No. Name Source Direction Description
Table A-28 UFI X.21 and V.35 DCE Connector Pinouts
Pin No. Name Source Direction Description
7/14 SG Both — Signal ground
8/21 RxC DCE Output Receive clock
6/19 TxC DCE Output Transmit clock
3/16 TxD DTE Input Transmit data
2/15 RxD DCE Output Receive data
9/22 XTC DTE Input External transmit clock
4/17 DSR DCE Output Data set ready
10/23 DTR DTE Input Data terminal ready
11 CTS DCE Output Clear to send
24 RTS DTE Input Request to send
25 LLB DTE Input Local loopback command
26 RLB DTE Input Remote loopback
13 TM DTE Output Test mode
20 SG Both — Signal ground
12 DCD DCE Output Data carrier detect
1 — DTE Input Port in DTE mode