Rev: 03/2009
KNX-GSM Gateway
Page 7 of 19
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b+b Automations- und Steuerungstechnik GmbH
KNX-GSM GATEWAY.DOC
SIM cards
A SIM card from a GSM network provider is needed for communication in the GSM network. This
SIM card identifies the user in the GSM network. The KNX-GSM Gateway supports 1,8V and 3V mini
SIM cards.
Important:
Bevor changing the SIM card you have to cut the power supply from the KNX-GSM
Gateway. This is important to save the SIM card from damage!
GSM antenna
Every GSM antenna with SMA connector (male) can be used with the KNX-GSM Gateway. You only
have to ensure that the used antenna supports the frequency band used by your GSM network pro-
vider.
Note:
The included antenna is a Dualband antenna which supports operation in the frequency bands
900MHz and 1800MHz. If you plan to use the KNX-GSM Gateway in the frequency band 850MHz or
1900MHz you have to provide an extra antenna which supports these frequency bands.
