Lucent Technologies Release 7 Data Applications and System Port Connectivity

DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4 June 1999
Maintenance Object Repair Procedures
9-1145PDATA-PT (Packet Data Line Port)
9
Data Applications and System Port Connectivity
As part of each data ap plication, the SPE connects itself to the app lication
device through a system p ort. The application devic e may be an external
terminal, printer, or data-mod ule, or it may be circuitry internal to the s witch, as is
the case for the Announcement Circ uit pack data-module used to save and
restore recorded announcements. The fig ure below is an example of a system
port connection usin g a second Data Line circ uit pack (DAT-LN-BD) port to
provide dial-in ac cess for a remote terminal.
A feature may not have a permanent connec tion to a system port. For example,
the announcement feature uses the system por t when it is saving or restoring
announcement data to or from the Mass Storage System. The rest of the time it
does not use a system port. This makes troubleshooti ng these links more difficult,
since the symptoms may ap pear on one side of the link while the prob lem is on
the other. If the link is no longer up, there is no way to determine which system
port experienced the problem.
Figure 9-68. Typical System Port Connection
Printer,
CDR,
Data
Terminal,
or
Dial-up
G3-MT
M3
Packet Bus
PKT
INT
TN1655
Other SPE
Components
SPE Complex
Processor Bus
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Processor Bus
Other SPE
Components
SPE Complex
PKT
INT
TN1655
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TDM Bus
DAT-LINE
TN726B
DAT-LINE
TN726B
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PDATA
TN553
EIA
EIA
M2
(if duplicated)
Standby
Active