Linear DMC-10DS User Manual

16

SYMPTOM

CAUSE

SOLUTION

No hub status 
indicators lit

No power to hub

Check power 
supply input & 
output voltage

Hub station status 
indicator not lit on 
an installed station

Wiring error

Check Cat-5 
wiring, redo wiring 
if necessary

Expansion hub 
status indicator not 
lit (with expansion 
hub installed)

Wiring error or 
no power to 
expansion hub

Check Cat-5 wiring to 
expansion hub, redo 
wiring if necessary, 
check expansion 
hub power supply

Hum or buzz in audio

Electrical interference

Check for station 
Cat-5 wiring near 
AC power wires or 
near lamp dimmers

Door station sounds 
wrong chime

Door station wired to 
wrong hub connector

Wire door station 
to a different hub 
connector for the 
correct chime

Stations came out 
of constant modes

Power interruption 
at hub

Reset stations into 
constant modes

Station will not 
go into Privacy 
Mute Mode

Hub mute dipswitch 
for station set to OFF

Set hub mute 
dipswitch for 
station to ON

Station will not go 
into Do-not-disturb 
Mode

Hub mute dipswitch 
for station set to OFF

Set hub mute 
dipswitch for 
station to ON

Station will not 
activate door release

Hub door release 
dipswitch for 
station set to OFF

Set hub door 
release dipswitch 
for station to ON

Cannot monitor 
a station in 
Listen Mode

Station to monitor 
set to Privacy 
Mute Mode or 
Do-not-disturb Mode

Take station 
out of Privacy 
Mute Mode or 
Do-not-disturb Mode 
by pressing MUTE

Low or no intercom 
volume

Station’s volume 
control set low or off

Reset station’s 
volume control