DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1210PGATE-PT (Packet Gateway Port)
9
PGATE-PT (Packet Gateway Port)
The TN577 Packet Gateway circuit pack provides connectivity from the switch to
adjuncts or to other switches in a Distributed Communications System (DCS).
Ports on the TN577 perform statistical multiplexing of data connections based on
the X.25 data communication protocol standard. An X.25 Access Link must be
established between the Packet Gateway port and the adjunct or DCS switch
prior to the connection of any data sessions on the port. Such data connections
consist of X.25 packet-data streams which entering the Packet Gateway port and
are transported by Packet Gateway circuitry to the packet bus and then to other
endpoints on the bus. An X.25 Access Link is illustrated in the description of the
Link Status Test (#614).
Packet Gateway Applications
The following applications and adjuncts use packet gateway ports:
■ AUDIX
■ Call Management System (CMS)
■ Distributed Calling System (DCS)
■ ISDN Gateway Adjunct
■ Message Server
Packet Gateway Configurations
X.25 links connect to the SPE via the packet bus and the TN1655 Packet
Interface circuit pack. In addition to the configurations shown, a long distance
modem can connect directly to one of the external ports on the Packet Gateway
circuit pack to connect to data networks including private lines, Dataphone II
networks, and Digital Data Service (DDS) networks. Disregard the references to
notes in the following figures.
MO Name (in
Alarm Log) Alarm Level Initial Command to Run
1
1.
UU
is the universal cabinet number (1 for PPN, 2 - 44 for EPNs).
C
is the carrier designation (A, B,
C, D, or E).
SS
is the number of the slot in which the circuit pack resides (01 to 21).
pp
is the two
digit port number (01, 02, ...).
Full Name of MO
PGATE-PT MAJOR test port UUCSSpp long X.25 Port Maintenance
PGATE-PT MINOR test port UUCSSpp long X.25 Port Maintenance
PGATE-PT WARNING test port UUCSSpp X.25 Port Maintenance
