Nortel Networks 1100, 1050, 1010 manual ISDN BRI interface card

52 Appendix A Technical specifications

Table 20 provides the ADSL port pinouts.

Table 20 ADSL cable pinouts

Pin	Function
1	N/C
2	Tip
3	Ring
4	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 BRI S/T interface to the ISDN network, you must attach an external NT-1 device to the RJ-45 connector.)

Figure 22 shows the ISDN BRI S/T interface card.

Figure 22 ISDN BRI S/T interface card

ISDN-ST

10972EA

Figure 23 shows the ISDN BRI U interface card.

Figure 23 ISDN BRI U interface card

ISDN-U

10972EB

NN46110-313 02.01