TROUBLESHOOTING
1.
Make sure that the Machine Room phone is getting
power from the AC transformer by checking the voltage
on the battery snap. There should be approximately 13
volts DC with the handset on-hook. There should be
positive voltage on the female side of the connector and
negative voltage on the male side. If the polarity is not
correct reverse the wires coming from the wall
transformer.
2. Make sure the wall phone is powered by taking the
handset off hook and pressing any of the digits. There
should be tones heard in the handset. If no tones are
heard check the connections to the power supply.
3. Make sure the 9-volt battery is charged. If you have less
than 8-volts you can temporarily replace it with any
charged 9-volt battery for testing purposes. The 9-volt
battery supplied with the unit is rechargeable and will
build up to full charge after a couple of hours connected
to the power supply.
4. Check to make sure voltage is being sent to the
European connectors. WITH THE HANDSET
OFFHOOK and THE APPROPRIATE PUSH
BUTTON PRESSED (if not simplex) check to see if you
have 9-13 volts DC to the European connector to the
selected elevator cab.
6
5. Check to make sure the cab unit is getting voltage.
WITH THE HANDSET OFFHOOK and THE
APPROPRIATE PUSHBUTTON PRESSED (If not
simplex) measure the DC voltage at the TELCO
connector. There should be 9-13 volts. Make sure that
polarity is correct-positive voltage on the No. 2 and
negative voltage on No. 1 connector.
