Specifications

C-11
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
LL/DCD 44 —>10 LL
Circuit ground 45 – 37 SC
DSR/DTR+ 3 <— 11 ON+
DSR/DTR– 4<— 29 ON–
DTR/DSR+ 7 —>12 TR+
DTR/DSR– 8 —>30 TR–
DCD/DCD+ 5 <— 13 RR+
DCD/DCD– 6<— 31 RR–
TxCE/TxC+ 13 —>17 TT+
TxCE/TxC– 14 —>35 TT–
Circuit ground 15 – 19 SG
Circuit ground 16 – 20 RC
Mode 1
Ground
49
48
––Shorting group
Ground
Mode_DCE
51
52
––Shorting group
1. HD = high-density.
Table C-11 EIA/TIA-449 Adapter Cable Signals (DCE)
DCE Cable (CAB-449C=)
Router End, HD
1
60-Position Plug
Network End,
DB-37 Receptacle
Signal Pin Pin Signal
Shield ground 46 – 1 Shield ground
RxD/TxD+ 28 <— 4SD+
RxD/TxD– 27 <— 22 SD–
TxCE/TxC+ 13 —>5 ST+
TxCE/TxC– 14 —>23 ST–
TxD/RxD+ 11 —>6 RD+
TxD/RxD– 12 —>24 RD–
CTS/RTS+ 1 <— 7RS+
CTS/RTS– 2<— 25 RS–
TxC/RxC+ 24 —>8 RT+
TxC/RxC– 23 —>26 RT–
RTS/CTS+ 9 —>9 CS+
RTS/CTS– 10 —>27 CS–
Table C-10 EIA/TIA-449 Adapter Cable Signals (DTE) (continued)
DTE Cable (CAB-449MT=)