Isdn Bri Interface Card; Figure 38 Isdn Bri S/T Interface Card Or Isdn Bri U Interface Card; Table 26 Adsl Annex B Cable Pinouts - Nortel 1750 Install Manual

Table 26 provides the pinouts for the ADSL Annex B cable.

Table 26 ADSL Annex B cable pinouts

RJ-11 termination
Signal
N/C
Tip
Ring
N/C

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. The two cards look identical.

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

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.
Appendix A Technical specifications 91
RJ-45 termination
Pin # to Pin # Signal
1 6 N/C
2 5 Tip
3 4 Ring
4 3 N/C
ISND ST
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