Nortel Networks BCM50 - Manual (Page 208)

208 Appendix B BRI wiring chart
NN40020-302
Table 36 BRI line numbering
Port number
Default line numbers on
Expansion port 1
Default line numbers on
Expansion port 2
1 065 – 066 095 – 096
2 067 – 068 097 – 098
3 069 – 070 099 – 100
4 071 – 072 101 – 102