DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1245PKT-INT (Packet Interface Circuit Pack)
9
The links that pass through the Packet Interfac e circuit pack are id entified as
application links and system links as follows:
1. Application links
a. EIA endpoints requiring c onnectivity to the SPE.
These links pass over the Packet bus, through the System Ports,
and over the TDM bus to provide c onnectivity from the SPE to
endpoints on the TDM bus (see figure b elow).
The following system features use applic ation links of this type.
■Call Detail Recording (CDR)
■Dial-up administration
■Property Management System (PMS)
■Journal printer
■Wake-up log printer
■Announcement circuit p ack upload/d ownload of recorded
messages
b. BX.25 links supported by the Packet Gateway.
The following system features use applic ation links of this type.
■Distributed Communication System (DCS)
■Audio Information Exchange (AUDIX)
■Messaging Service Adjunc t (MSA)
■Call Management System (CMS)
■Outgoing Call Management (OCM)
■Adjunct Switch App lication Interface (ASAI)
2. System links
■Expansion Archangel links (sig naling links for call setup of
endpoints in an EPN)
■Center Stage Control Network (CSCN) links
■ISDN PRI D channel signaling links
■Packet Gateway call control links (sig naling links to the Packet
Gateway circuit pac k)
■ISDN BRI D channel broadcast and p oint-to-point signaling links
■Adjunct Switch App lication Interface (ASAI) links
The PBX has been designed for a maximum of three Packet Interf ace circuit
packs but only one Packet Inter face circuit pac k is required for the current PBX
hardware configuration. The Packet Interfac e circuit pac k will normally be
inserted in the first Packet Interfac e slot provided in the c ontrol carrier although it