Chapter 6 TrunkingPage 6-2 NEAX 2000 IPS Request for Proposal (RFP) Reference GuideNDA-24349, Issue 4Trunk Parameters Trunk Impedance 600/900 ohms (selectable by programming) Trunk Resistance Characteristics, Central Office Trunk (1200 maximum)o Trunk Set Up Procedureo Loop Starto Ground starto Wink Starto Ring Downo E & M Signaling Release and Incoming Detect Immediate Start and Timing Variable StartTrunk Card SpecificationsPN-4COTBThis card provides 4 Loop/Ground Start trunks with disconnect supervision and mounts in any PIM (0 to7) and supports the following interface:a. Interface for standard Analog trunks/Centrex type linesb. Interface card for CO ring down trunksc. Interface with 4 paging equipment linesd. Interface with external music/announcement source for Music-On-Hold featureThe above interfaces can be mixed on to one card in any combination.PN-8COTSThis card provides 8 Loop/Ground Start trunks with disconnect supervision and mounts in any PIM (0 to7) and supports the following interface:a. Interface with 8 CO linesb. Interface with 8 paging equipment linesc. 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-4COTGThis 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). Thiscard supports Loop Start trunks.PN-8COTQThis 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). Thiscard supports Loop Start trunks.