User's Manual
| 15
Getting started | RS90 Operating Manual
Handset parts
Label Description
1 Red distress cover with button beneath
2 Screen
3 PTT button
4 Volume control
5 Keypad (wired handsets only).
Subscribing a wireless handset
At installation time, wireless handsets must be registered in the 
transceiver. For instructions, see “Subscribing a wireless handset” on 
page 70.
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2
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4
5
Draft v5.0 
27 Feb 2014










