Putting the handset into service
Use a Bluetooth headset for Ex-proof equipment, page 116.
Connecting a USB data cable
The USB cable must not be connected in Ex zones!
You can connect a USB data cable into the port under the battery cover of
your handset.
1. To do this, open the battery cover, as when inserting the battery
page 17.
2. Insert the mini-USB plug into the socket.
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