Owner's manual

882N TELEKOMUNIKACE a.s., www.2n.cz
®
Terminals
Connectors
1 Audio unit bus 7 Unconnected
2 Unconnected 8 LED
3
Unconnected (1-button version)
Fireman call activation – with detent
(2-button version)
9
Microphone connector
(optional)
4 Unconnected 10 Induction loop connector
5
Activation/Deactivation – without
detent (1-button version)
Push to talk – without detent
(2-button version)
11 Speaker connector
6 Unconnected 13 Servicing connector
Configuration Jumpers
Two LED Indicators (from the other
side)
12
The lower pin
defines the button
count
j u m p e r
connected – 1
button
jumper unconnected – 2 buttons
1. (yell
ow)
Shining – active Fireman call
Flashing – Push to talk (for
2-button versions only)
(gre2.
en)
Bus Connection
Pull the terminal out of connector 1 – Audio units bus, connect the bus audio units
wires and replace the terminal to connector 1. Mind the polarity.
Note
If an external LED is connected to connector 8, the LED 1 indicator will not
be shining.
Warning
Connection to different, e.g. higher-voltage, cables leads to damage or
destruction of the audio unit.
Maintain polarity while connecting the audio unit to avoid audio unit error.
Caution
The audio unit is powered via a 2-wire bus. Disconnection of these wires
results in the audio unit switch-off.
Proper polarity (+ -) is shown on the cover of audio unit.