Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 239 / 874

Chapter 17 Hardware procedures 239
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
3 TTB input or
output data communication from data jacks for TEL
tip B
4 D1A input or
output data communication from data jacks
5 D1B input or
output data communication from data jacks
6 none none none
7 none none none
8 none none none
9 none none none
10 none none none
11 TRA input or
output voice communication from telephone jacks
for TEL ring A
12 none none none
13 TRB input or
output voice communication from telephone jacks
for TEL ring B
14 D2A input or
output data communication from data jacks
15 D2B input or
output data communication from data jacks
Table 3
Pinout of the BIP female D-sub 25-pin connectors P2 and P4
Pin Signal Function Description
1 TTA input or
output voice communication from telephone jacks
for TEL tip A
2 TRB input or
output voice communication from telephone jacks
for TEL ring B
(Sheet 1 of 3)
Table 2 (continued)
Pinout of the BIP female D-sub 15-pin connector P1
Pin Signal Function Description
(Sheet 2 of 2)