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 Interface circuit pack are identified as
application links and system links as follows:
1. Application links
a. EIA endpoints requiring connectivity to the SPE.
These links pass over the Packet bus, through the System Ports,
and over the TDM bus to provide connectivity from the SPE to
endpoints on the TDM bus (see figure below).
The following system features use application links of this type.
■ Call Detail Recording (CDR)
■ Dial-up administration
■ Property Management System (PMS)
■ Journal printer
■ Wake-up log printer
■ Announcement circuit pack upload/download of recorded
messages
b. BX.25 links supported by the Packet Gateway.
The following system features use application links of this type.
■ Distributed Communication System (DCS)
■ Audio Information Exchange (AUDIX)
■ Messaging Service Adjunct (MSA)
■ Call Management System (CMS)
■ Outgoing Call Management (OCM)
■ Adjunct Switch Application Interface (ASAI)
2. System links
■ Expansion Archangel links (signaling 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 (signaling links to the Packet
Gateway circuit pack)
■ ISDN BRI D channel broadcast and point-to-point signaling links
■ Adjunct Switch Application Interface (ASAI) links
The PBX has been designed for a maximum of three Packet Interface circuit
packs but only one Packet Interface circuit pack is required for the current PBX
hardware configuration. The Packet Interface circuit pack will normally be
inserted in the first Packet Interface slot provided in the control carrier although it
