Specifications

C-9
Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Appendix C Cable Specifications
Cisco 7120-4T1 and Cisco 7140-8T Cables and Pinouts
Shield ground 46 – 1 Shield ground
TxD/RxD 41 —>2 TxD
RxD/TxD 36 <— 3RxD
RTS/CTS 42 —>4 RTS
CTS/RTS 35 <— 5CTS
DSR/DTR 34 <— 6DSR
Circuit ground 45 – 7 Circuit ground
DCD/LL 33 <— 8DCD
TxC/NIL 37 <— 15 TxC
RxC/TxCE 38 <— 17 RxC
LL/DCD 44 —>18 LTST
DTR/DSR 43 —>20 DTR
TxCE/TxC 39 —>24 TxCE
Mode 0
Ground
Mode_DCE
50
51
52
–– Shorting group
1. HD = high-density.
Table C-9 EIA/TIA-232 Adapter Cable Signals (DCE)
DCE Cable (CAB-232FC=)
Router End, HD
1
60-Position Plug
Network End,
DB-25 Receptacle
Signal Pin Pin Signal
Shield ground 46 – 1 Shield ground
RxD/TxD 36 <— 2TxD
TxD/RxD 41 —>3 RxD
CTS/RTS 35 <— 4RTS
RTS/CTS 42 —>5 CTS
DTR/DSR 43 —>6 DSR
Circuit ground 45 – 7 Circuit ground
LL/DCD 44 —>8 DCD
TxCE/TxC 39 —>15 TxC
NIL/RxC 40 —>17 RxC
DCD/LL 33 <— 18 LTST
DSR/DTR 34 <— 20 DTR
Table C-8 EIA/TIA-232 Adapter Cable Signals (DTE) (continued)
DTE Cable (CAB-232MT=)