Nortel Modular ICS 7.1, Инструкция по установке, Страница: 276 / 700

276
/ Connecting the wiring
Modular ICS 7.1 Installer Guide N0130943 02
BRI U wiring is not polarity sensitive.
Wiring the BRI network interface
A network interface provides the connection between the
ISDN network and the Modular ICS.
If the card in the ICS is configured as a T-loop, the ICS is
wired to the network connection using an NT1.
See
T reference points on page 68 for more information about
the NT1.
Wiring for T network connection
45 Yellow-Slate ---- ---- ---- ---
20 Slate-Yellow ---- ---- ---- ---
46 Violet-Blue ---- ---- ---- ---
21 Blue-Violet ---- ---- ---- ---
47 Violet-Orange ---- ---- ---- ---
22 Orange-Violet ---- ---- ---- ---
48 Violet-Green ---- ---- ---- ---
23 Green-Violet ---- ---- ---- ---
49 Violet-Brown ---- ---- ---- ---
24 Brown-Violet ---- ---- ---- ---
50 Violet-Slate ---- ---- ---- ---
25 Slate-Violet ---- ---- ---- ---
Pin (jack or
plug)
NT1 connection
(for jack)
ICS and optional TE
connection (plug)
1 not used optional power source 3 (+)
2 not used optional power source 3 (-)
3 +Rx +Tx
4 +Tx +Rx
5 -Tx -Rx
6 -Rx -Tx
7 not used optional power sink 2 (-)
8 not used optional power sink 2 (+)
ICS U Interface Cards wiring (profile 2) (Continued)
Pin Wire color Port (loop) Service Lines (U-NT) TE (U-LT)