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Introduction
Introduction
Maintaining the
customer database changes, facilities and apparatus moves, adds and changes. These
requirements are handled properly by practicing the techniques, illustrations and step-
by-step instructions listed in the previous sections of this manual.
When installed properly the
to time the digital telephone instruments may become dirty or dusty and require
cleaning. We suggest the use of a clean, dry cotton (or other soft, absorbent) cloth to
wipe the instrument clean. Use of chemicals to clean the telephone plastics is NOT
recommended since some chemicals can cause permanent damage to the telephone
finish. If deep soiling conditions exist for the telephone to be cleaned, use of specialized
telephony cleaning solutions may give satisfactory results. When trying any cleaner for
the first time we suggest that it be applied to the telephone instrument underside in a
small sample area to assure that the desired results are obtained before proceeding.
Problems such as system restarts (from temporary AC power interruption), fading (from
the long distance carrier), or dropped calls (caused by internal user randomly pressing
holding CO Line buttons) all are common situations that are not the result of a system
component or software failure.
The System Troubleshooting Section attempts to provide the service technician with
some quick, and reliable, tools to diagnose installation related or service related problem
reports.
KSU
Component failures at the KSU are limited to power distribution (fuses), improper or
shorted wiring, CO or station interface failure, or auxiliary circuit problems.
CPU/Power LED
The CPU/Power heartbeat LED is located on the front of the
power switch, and on the Right Side of the KSU panel of the DHS-E. If the AC input and DC
output power circuits are operating, the LED will be on steady. If the CPU is running, not
locked up or failed, the LED should be flashing at a fast rate. The Initialization switch
should be in the right (ON) position.
®
STARPLUS
DHS/DHS-E™
DHS/DHS-E
digital telephone system is a combination of
performs relatively maintenance-free. From time
DHS
7-1
KSU adjacent to the
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