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Addressable Loop Interference on Phone Handset Lines
13.5 Keep Modules Close to the Handsets
• Install the handsets as close as possible to the modules. A shorter cable will reduce
interference.
• If you cannot install the handsets close to the modules, use shielded cables between the
telephone modules and the handsets.
13.6 Large Systems and Retrofits
When there is a large number of cables connected to a single node, or when the amount and
location of wiring is not known, keep the following in mind:
• Make a cost provision for connecting loops to the quad loop adder main board (ALCN-
792M) instead of loop 2 (the loop that is hardwired on the Fire Alarm Control Panel).
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