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92 Appendix A Technical specifications
NN46110-318 02.01
Table 27 provides the pinouts for the ADSL Annex B cable.
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 look identical.
Figure 38 ISDN BRI S/T or IDSDN BRI U
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.
Table 27 ADSL Annex B cable pinouts
RJ-11 termination RJ-45 termination
Signal Pin # to Pin # Signal
N/C 16N/C
Tip 25Tip
Ring 3 4 Ring
N/C 43N/C
Note: Nortel does not supply a cable with the ISDN BRI interface cards.