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Maintenance
50003510 Revision A 209
Remove from Service, Return to Service
The maintainer can remove a line, trunk,or receiver circuit from service for maintenance.
Removing a circuit from service makes it inaccessible to call processing; it remains so until the
maintainer returns it to service.
Show, Set Date
The maintainer can show and set the system date from the maintenance terminal.
Show, Set System Time
The maintainer can show and set the system time from the maintenance terminal.
SUPERSET Firmware Download
The SUPERSET 4025, SUPERSET 4125, SUPERSET 4090, and the SUPERSET 4150
telephones are outfitted with flash ram that contains firmware. The firmware can be upgraded
using the firmware download maintenance commands. This makes it possible to download new
firmware in the field to add new functionality to the SUPERSET telephones.
System Logging Facility
The SX-200 EL and SX-200 ML systems keep a system event log. Each time the maintenance
state of a device changes, or a major event occurs such as a card installed in the wrong slot,
the system generates a log report. These log reports can be read, printed, or deleted from the
maintenance terminal or console.
Test Line Function
The test line, in addition to normal extension features, has access to maintenance and testing
features. By entering DTMF digits, service personnel can perform the following maintenance
functions
• Busy out any channel on the system
• Busy out any peripheral device in the system except consoles and the test line circuit
• Print the system maintenance log on to the system printer
• Select any trunk in the system from the test line
• Return to service any channel on the system
• Stop print the system maintenance log on to the system printer
• Return to service any peripheral device that was previously removed from service via
maintenance
• Stop testing the printers on the system
• Test any channel on the system