Chapter 6 Trunking
Page 6-2 UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide
Issue 6
Trunk Parameters
Trunk Impedance 600/900 ohms (selectable by programming)
Trunk Resistance Characteristics, Central Office Trunk (1200 maximum)
Trunk Set Up Procedure
o Loop 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.