Digibell Vandal Resistant System Especificaciones descargar pdf (Pagina 23)

BSX Isolated Audio Entry System

PD-142 Issue 1 Installation and Operating Manual Page 23 of 32

 Call the phone under test by pressing the required button and confirm by observing that

the corresponding LED on the BSX PCB is illuminated

 Using a voltmeter:

a) Check the voltage between I and O: +12V pulsing (The ring voltage)

b) Check the voltage between V and O: +12V steady (Power for BS-LX model only)

Repeat the voltage test at various points as detailed below to diagnose the fault:-

Test

Result

Action

Test voltages at phone PCB

OK

Check phone by substitution

Otherwise:

Test voltages at BSX PCB

OK

Faulty cable or connections

If Not OK

Check fuse

Otherwise:

Unplug phone connections;

Test voltages at BSX PCB

OK

Faulty cable or connections

If Not OK

Check fuse

Call Technical

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