
Digibell Vandal Resistant System
PD-169 Issue 3B Installation Guide Page 31 of 56
Phone ring test
This test can be used to ring a phone on one of the four outputs of the DBA-4I isolator to
verify basic operation. It can be used to test the ringer, hook switch and lock button operation
but not the two way speech.
1. Press the Test button twice to ensure the system is in idle.
2. Set SW7 to test the appropriate phone (only one phone at a time):
1 ON 1
Phone
2 ON 2
Phone
3 ON 3
Phone
4 ON 4
Phone
3. Press Test to ring the phone
4. If the phone is taken off-hook the speech light will come on, and go back off when the
phone is replaced.
5. If the lock button is pressed, while the speech light is on, the status LED will come on
for 3 seconds, if using the BS-LX phone the green LED on the phone will also come
on for 3 seconds.
6. Press the test button at any time to cancel.
7. Restore SW7 to the required address setting
Diagnostic LEDs
Status Power up Flashes 3 times
Data is present on Data A/B. Brief flash
Phone lock button pressed during a call or test On for 3 seconds
Test button pressed and system idle Brief flash
Restoring factory defaults On for 2 seconds
Speech Speech active (call in progress);
Ring Test active (no speech)
On
LED1 1
Phone active On
LED2 2
Phone active On
LED3 3
Phone active On
LED4 4
Phone active On
Fuse
The 12V connection (V terminal) to each flat/phone is individually fused with a standard
20mm fuse, which will need replacing if it fails.
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