Installation guide

A-44
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Appendix A System Specifications
Cabling Summary
HDM V.35 Port Pin Assignments
A standard V.35 cable works for this application.
24 RxD-B 11 Receive data to DTE
7 RTS-A 3 Request to send
25 RTS-B 10 Request to send
9 CTS-A 5 Clear to send
27 CTS-A 12 Clear to send
5 TxC-A 6 Transmit clock
23 TxC-B 13 Transmit clock
19 SG 8 Signal ground
5 to 8 TxC-A Receive clock
1
23 to 26 TxC-B Receive clock
1
1. Loops Receive Clock to Transmit Clock when necessary.
Table A-39 X.21 Adapter Cable Pin Assignments (continued)
DB-37 Pin No.
(SDI) IGX Name
DB-15 Pin No.
(User) Description
Table A-40 HDM V.35 Connector Pin Assignments
Pin No. Name Source Description
A Gnd. Both Protective (shield) ground
B Sig. Gnd. Both Signal ground
C RTS DTE Request to send
D CTS DCE Clear to send
E DSR DCE Data set ready
F DCD DCE Data carrier detect (RLSD)
H DTR DTE Data terminal ready
J RI DCE Ring indicator
K TM DCE Test mode
P/S TxD DTE Transmit data from DTE
R/T RxD DCE Receive data to DTE
U/W XTC DTE External transmitter clock
V/X RxC DCE Receiver clock
Y/a TxC DCE Transmitter clock