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Aiphone IS User Manual

Page 45

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45

GETTING STARTED

USING THE SYSTEM

APPENDIX

SETTING AND ADJUSTMENT

This product meets the applicable Industry Canada technical specifi cations.

The Ringer Equivalence Number (REN) is an indication of the maximum number of devices allowed to be connected to a telephone
interface. The termination of an interface may consist of any combination of devices subject only to the requirement that the sum of
the RENs of all the devices not exceed fi ve.