Avaya S8700 Maintenance Manual page 1961

PKT-INT (Packet Interface)
In addition to affecting telephone service, a failure of one or both of the PN's
Packet Interfaces affects service provided by circuit packs that connect to the
packet bus. For example:
TN464C, TN2207, TN2464 Universal DS1 circuit pack
service
TN556, TN2198, TN2185 ISDN-BRI Line circuit pack
TN2305, TN2306 ATM
TN570 Expansion Interface (EI)
TN573 Switch Node Interface (SNI)
TN799DP Control LAN (C-LAN) packet port circuit pack
TN2501 Voice Announcements over the LAN (VAL)
If the active IPSI's Packet Interface causes a MAJOR alarm in a high- or
critical-reliability system (with duplicated IPSIs), an IPSI interchange occurs if the
standby IPSI's state of health (SOH) is high enough to permit the interchange. A
MAJOR alarm due to a failure of the standby IPSI's Packet Interface lowers the
standby's SOH, preventing a subsequent interchange.
The links that pass through the Packet Interface circuit are identified as either
"application" or "system" links as follows:
1. Application links
a. Endpoints requiring connectivity to the media server via the C-LAN
2. System links
555-233-143
board's Socket interface.
These links pass over the packet bus, and through C-LAN ports.
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
IP phones
Expansion Archangel links (signaling links for call setup of an PN's
endpoints)
Center Stage Control Network (CSCN) links
ISDN-PRI D-channel signaling links
ISDN-BRI D-channel broadcast and point-to-point signaling links
Adjunct Switch Application Interface (ASAI) links
Remote Socket Control Link (RSCL) (C-LAN, VAL)
BRI (TRK and STA)
—
ISDN-PRI
—
ISDN-BRI service
Issue 1 May 2002 8-1239