Download C106 Coded Access Keypad CS106 Door Entry & Coded Entry

CS106 Combined Door Entry and Coded Access
Troubleshooting
CS106 Combined Door Entry and Coded Access
Symptom
Possible Cause/Remedy
Ž
Use the table below to determine the most probable cause of a fault condition.
Speech Unit.
Refer also to page 26 for problems with the coded access system (C106
Keypad).
Ž
Speech Unit is not tight against the
panel grill.
Telephone Problems
Ž
Symptom
Volume adjustment required on the
Possible Cause/Remedy
Constant tone/feedback
‘O’ connection between Speech unit
and telephone is open circuit.
when in use.
Ž
Volume adjustment required on speech
Ž
unit.
Ž
close together.
Speech unit is not tight against the
Ž
panel grill.
Low Speech Volume
Entrance panel and telephone are too
The entrance panel is surrounded by
reflecting walls.
Ž
Panel grill is blocked
Ž
Panel grill is blocked.
Ž
More than one telephone is off the
Ž
Wiring fault on the speech signal
Ž
hook.
No speech when the phone
Speech unit supply voltage is low.
is buzzed
Check 10V - 15V across ‘C’ and ‘H’.
39
connections ‘R’ or ‘T’: ‘R’ carries the
phone microphone signal to the speech
unit; ‘T’ carries the Speech unit
microphone to the phone.
40