Nortel Modular ICS 7.1, Инструкция по установке

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Connecting the wiring /
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N0130943 02 Modular ICS 7.1 Installer Guide
For an explanation about port numbering, see Port numbering on the wiring charts on page 260.
For CCI connections in Service column: NC1 stands for the normally closed relay and Com1, the common relay.
CCI signaling is not supported by all carriers. For carriers or installations that do not use CCI signaling, the CCI and ET
connections should be treated as “no connection”. CCI wiring is a non-standard wiring arrangement which has been
submitted to the DOC.
DID supervisory signaling
This equipment returns supervisory signals to the public
switched telephone network (PSTN) when the DID calls are:
• answered by the called telephone
• answered by the attendant
• routed to a customer controlled recorded announcement
• routed to a dial prompt
This equipment is designed to return supervisory signals on all
DID calls forwarded through the system back to the PSTN
within 20 seconds of call forwarding being initiated.
Emergency transfer conditions
Every DID Trunk Cartridge has a Control Circuit Interface
(CCI) which should be connected directly to the central office
for monitoring purposes.
If the Norstar system loses power or the microcontroller on the
DID Trunk Cartridge malfunctions, the CCI signals the central
office that it can no longer handle DID calls. The central
21 Blue-Violet X11 R 11
47 Violet-Orange X12 T 12
22 Orange-Violet X12 R 12
48 Violet-Green ---- No connection ----
23 Green-Violet ---- No connection ----
49 Violet-Brown ---- No connection ----
24 Brown-Violet ---- No connection ----
50 Violet-Slate ---- ET ----
25 Slate-Violet ---- ET ----
Trunk Module with DID Trunk Cartridges (Continued)
TC Slot Pin Wire color Port Service Line