Clear-Com Encore User Manual

Clear-Com Communication Systems
Encore System Installation Instruction Manual
1-25
TROUBLESHOOTING
PROBLEM: System does not operate. No power to Main
Station or Power Supply. Green POWER
LED is not illuminated and no SHORT LED's
are illuminated
Cause 1: No AC power to the Main Station or Power
Supply.
Solution 1: Make sure the power switch on the rear panel is
turned ON. Check AC connection and cable.
Plug into dependable AC source.
Cause 2: Main Station or Power Supply has an internal
Power Supply failure.
Solution 2: Unit requires servicing.
PROBLEM: Problem:Red SHORT LED illuminated
Cause 1: Short or overload on that channel due to a
shorted or miswired cable.
Solution 1: Remove cables one at a time from system until
the faulty line is located. (The red Short LED will
then turn off.) Check for shorts between pins 1
and 2 or improper cable wiring. Once the short
is removed, the Main Station or Power Supply
will reset automatically and the power will come
back up within several seconds.
Cause 2: Defective Remote Station.
Solution 2: Check Remote Station and replace if necessary.
PROBLEM: Both red SHORT LEDs are illuminated
Cause 1: System is overloaded.
Solution 1: Remove cables, one at a time from system to
help determine where the excess current
requirements lie. Re-evaluate system current
needs.
Cause 2: Short in multipair cable.
Solution 2: Remove cables, one at a time from system until
the faulty line is located. Check for shorts
between pins 1 and 2 or improper cable wiring.
PROBLEM: Hum or buzz in system
Cause 1: Inductive pickup caused by close proximity of
this Main Station or connected Remote Stations
to power lines or transformers.
Solution 1: Relocate offending unit.
Cause 2 10 Ohm chassis ground resistor is open.
Solution 2: Check the DC resistance for 10 Ohms between
the chassis and pin 1 of any intercom connector.
If this condition happens, it is because the system ground came
into contact with something that was "HOT" with respect to the
Power Supply earth ground. If this occurs, carefully check the
system ground and AC distribution in the area.

Clear-Com Encore Specifications

General

Brand	Clear-Com
Model	Encore
Category	Intercom System
Language	English