Cables And Pinouts For 2-Port Isdn Bri Card - Cisco 1751V Hardware Installation Manual

Appendix B Cabling Specifications

Cables and Pinouts for 2-Port ISDN BRI Card

Note
78-11258-04
Use the straight-through RJ-45 cable to connect the 2-port ISDN BRI card to an
ISDN network through a telephone wall outlet or other device.
When the interface is configured as NT and is connecting to a TE device, the cable
must have the transmit and receive pins swapped (crossover cable). (See
Table 6 Interface Pin Numbers and Functions
ISDN BRI NT/TE
Pin 3/T+
Pin 4/R+
Pin 5/R-
Pin 6/T-
Cables and Pinouts for 2-Port ISDN BRI Card
NT Interface (use
straight-through cable)
Pin 3/R+
Pin 4/T+
Pin 5/T-
Pin 6/R-
Cisco 1751 Router Hardware Installation Guide
Table
TE Interface (use
crossover cable)
Pin 3/T+
Pin 4/R+
Pin 5/R-
Pin 6/T-
B-7
6.)