Amplicomms BigTel 50 Alarm Plus User Manual page 34

1. Insert the batteries in the open battery compartment.
Only use batteries of the type AA 1.5 V. Pay attention to the correct
polarity. Close the battery compartment cover.
Pay attention that the telephone is not connected to the telephone line
socket and/or mains power connection when the batteries are being
inserted or replaced.
2. Connect the telephone as illustrated in the diagram. Only use the tele-
phone cable supplied because the equipment may not function if another
telephone cable is used.
Mains power Telephone wall
wall socket socket
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