
Appendix A Technical specifications 91
ISDN BRI interface card
The ISDN BRI S/T and ISDN BRI U interface cards have a single
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
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