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GL4 v1.13 EN
Service
TROUBLESHOOTING
The red LED does not start flashing when unit is connected to supply voltage.
•
Make sure that the supply voltage is: 24 - 30 VAC/DC
All 4 LED’s starts flashing rapidly.
•
Make sure that the SIM card is correctly positioned.
•
Check that the SIM cards PIN-code is deactivated or that the PIN-code is set to ”0000” or ”1111”
(see the section SIM card).
•
Make sure that the SIM card is activated and operational by testing the card in an cellular phone.
The call is interrupted directly after being connected.
•
If the unit is powered from a battery make sure the battery is properly charged.
•
If the unit is powered from a transformer make sure that it can deliver minimum 0.25A continuous
current.
Call can not be connected. Error message from telephone operator.
•
To make a call, area code must always be used.
INTERFERENCE / POOR SOUND QUALITY
•
Bear in mind that the wiring between GL4 and the lift telephone/ phone is basically a “standard”
PSTN-line and can therefore not be placed in the lifts travelling cable together with high voltage.
*** (Risk of interference)***
•
Always place the antenna in an upward position and at least 1,5m distance from GL4.
•
Place the antenna where the highest field intensity is obtained according to the table on the unit.
•
When a call is connected try placing the antenna in different places to find where the best
receiving/sending position is.