Nortel Networks 2700 manual Isdn BRI interface card, Isdn BRI S/T cable pinouts

Appendix A Technical specifications 91

ISDN BRI interface card

The ISDN BRI S/T and ISDN BRI U interface cards have a single RJ-45 connector that provides the signals needed to interface to ISDN equipment. (To connect the ISDN S/T interface to the ISDN network, you must attach an external NT-1 device to the RJ-45 connector.)

Figure 38 shows the ISDN BRI S/T interface card or the ISDN BRI U interface card. Both interface cards look the same.

Figure 38 ISDN BRI S/T interface card or ISDN BRI U interface card

ISND ST

The connector on the ISDN BRI S/T and ISDN BRI U interface cards accommodates an 8-pin RJ-45 modular patch cord. These cables are sold as Category 5, or Ethernet, cables.

Note: Nortel does not supply a cable with the ISDN BRI interface cards.

Table 27 provides the ISDN BRI S/T cable pinouts.

Table 27 ISDN BRI S/T cable pinouts

Pin

1

2

3

4

5

6

7

8

Function

N/C

N/C

Receive +

Transmit +

Transmit -

Receive -

N/C

N/C

Nortel VPN Router Installation — VPN Router 2700