Hi,
We have several versions of UCM/GSM module.
Is your module UCM/GSM2 as shown in:
http://www.comfortforums.com/forum48/1214.html
If yours is the one mentioned above then by default the red D4 LED should turn on to indicate that there is power supplied to the GSM daughterboard from the UCM baseboard.
Since you said the module is working fine then there is no problem as far as functionality concerned.
The only issue is that it gives wrong power indication.
This could probably be caused by a faulty D4 LED.
Did you notice if this LED is turned on when it was first installed?
Any other issues with this UCM/GSM module before?
Last edited on Wednesday Sep 22nd, 2010 03:34 am by hendy
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