Aastra Dialog 4220 Dialog 4220 Lite for BusinessPhone, user guide - Page 80
Accessories, Alarm interface unit, Option unit, Dialog 4220 Lite
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Accessories Accessories This chapter describes optional features that can be used together with your BusinessPhone telephone. Alarm interface unit Note: Only available for the Dialog 3210. This plug-in module is fitted into the bottom of the telephone. It makes it possible to transfer alarm signals from various devices via the telephone to the exchange and to a pre-defined extension. A special circuit layout provides maximum functional security. To a telephone fitted with an alarm interface unit you can connect devices such as bathroom alarms for hotel rooms, emergency alarms for hospitals, bank security alarms and supervision of machines. Option unit Dialog 4220 Lite The Option unit DBY 420 02 is an optional accessory, to be installed on the bottom of your telephone set. The following devices can be installed via the Option unit: • Tape recorder • Extra bell or busy indication outside your door • USB connector 80 BusinessPhone - Dialog 4220 Lite / Dialog 3210