DIS DIGITAL DESKTOP CALL STATION
User Manual
armtel.com
стр. 23/32
© Armtel
ENG
2.5.3 Troubleshooting
Possible problems and solutions are given in Table 5.
Table 5 – Possible problems and solutions
Problem
Possible causes
Solutions
No LED backlighting,
communication impossible
The power supply voltage is
missing
Check the integrity of the power
supply and communication
cables
Backlighting does not stop,
communication is
impossible
DIS is not configured from the
control panel
Configure the DIS in the control
panel
Frequent flashing of all
indication LEDs
DIS is not connected to the
control panel
Connect DIS to the control panel
Loss of communication with the
control panel
Reconnect the communication
The Caller does not hear
The volume of the speakers is
set to the minimum level
Adjust the volume of the
speakers with the programmed
keys.
The speaker cables are not
connected or faulty
Check the connection to the
connectors X4, X5 (see Figure 3)
and the integrity of the speaker
cables
The Called subscriber is
not heard
The microphone cable is not
connected or faulty
Check the connection to the
connector X1 (see Figure 3), and
the integrity of the microphone
cable
One of the key modules
does not work
The key module is not
connected to the connector on
the mainboard
Check the connection of the key
module to connectors Х6-Х9
(see Figure 3)
