NEC 2000 IPS manual Trunk Card Specifications, Trunk Parameters

Chapter 6 Trunking

Trunk Parameters

Trunk Impedance 600/900 ohms (selectable by programming)

Trunk Resistance Characteristics, Central Office Trunk (1200 ￿ maximum)

Trunk Set Up Procedure

oLoop Start o Ground start o Wink Start o Ring Down

o E & M Signaling

Release and Incoming Detect Immediate Start and Timing Variable Start

Trunk Card Specifications

PN-4COTB

This card provides 4 Loop/Ground Start trunks with disconnect supervision, mounts in any PIM (0 to 7) and supports the following interface mixed in any combination:

Interface for standard Analog trunks/Centrex type lines

Interface card for CO ring down trunks

Interface with 4 paging equipment lines

Interface with external music/announcement source for Music-On-Hold feature

PN-8COTS

This card provides 8 Loop/Ground Start trunks with disconnect supervision and mounts in any PIM (0 to

7)and supports the following interface:

Interface with 8 CO lines

Interface with 8 paging equipment lines

Interface with external music/announcement source for Music-On-Hold feature.

The above interfaces can be mixed on to one card in any combination.

PN-4COTG

This card is used to provide the system with Caller ID (Class SM). This feature requires the SPN- 4RSTC card to receive the FSK signals for Caller ID. This 4-port card mounts in any PIM (0 to 7). This card supports Loop Start trunks.

PN-8COTQ

This card is used to provide the system with Caller ID (Class SM). This feature requires the SPN- 4RSTC card to receive the FSK signals for Caller ID. This 8-port card mounts in any PIM (0 to 7). This card supports Loop Start trunks.

PN-4DIDA

This circuit card is a DID line trunk card which supports the functions of four DID line trunks. This card provides the following functions:

This card is equipped with Direct Inward Dialing (DID) function.

This card is equipped with loop detection functions, sending reverse signal, and DTMF to DP conversion.

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