Bell System bellagio, Руководство по установке и эксплуатации

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bellagio Digital Entry System
PD
–
281 Issue 1 Installation and Operating Manual Page 46 of 52
Telephone Ring Problems
Phone doesn’t ring

Address not set on the DBA-4I/8Z Isolator; refer to pg.
32/37.

I or O terminal not connected on the phone.

DBA-4I only
–
Phone is off-hook.

BS-LX phone: Phone is muted. Check red light is off.

V, I or O terminal not connected:

Check for 12V between V (+) and O (-).

Check for 12V between I (+) and O (-)

(when the phone should be ringing).

Data A or B cores to DBA-4I/8Z isolator open or short
circuit or shorted to 0V or 12V at any point.

(This would affect all phones on the isolator).
Phone rings briefly then
stops

Low voltage to the DBA-4I/8Z Isolator; Check the cable
requirements page 18. Check there is at least 10V on
the 12V+/- connection when the phone should be
ringing.

BS-LX only
–
Low Voltage to phone; Check the cable
requirements page 18
; Check voltage between ‘V’ and
‘O’ on the phone when ringing.

Power supply voltage low, due to current overload.
Check the voltage at the power supply is 13-14V.
BS-LX phone flashes red
and green periodically
instead of ringing

No 12V to connection ‘V’, check 12V between V and O
on the phone. Check the fuse on the DBA-4I/8Z isolator
hasn’t blown.
Panel Display Problems
No display

No power at display, check for a minimum of 10V.

To test display, cycle the power on BFD-DIG and check
for both version numbers displayed. “BDV1” then “V4.0”
Fault Code F1

“D” connection open circuit.
Fault Code F1

“D” connection: no data received.

“D” connection shorted to 0V
Display indicates
“Call
Fail
ed”

Apartment number entered was called but did not
respond. In a large system with BSSW controller, the
panel at the gate displays Fail when the block with that
apartment number is Busy.
Otherwise see Call Problems below.