Chamberlain NLS2 User Manual

1

The Intercom has up to a 1000 foot (300 m) range and 
allows multiple simultaneous conversations, using a 
900 MHz secure digital radio link. The intercoms 
form an exclusive network and respond only to other 
intercoms in the network.

On/Off: To turn intercom ON, press Talk button. To 
turn intercom OFF, hold down the Volume DOWN 
button for 3 seconds.

Talk Button: To talk, hold down 
the Talk button. All intercoms in 
the network that are on the same 
channel will receive the signal. 
Release the Talk button when done 
talking and within 10-15 seconds 
press and hold the Talk button of a 
different intercom to make a secure channel between 
the two. Once the channel is made the other intercoms 
in the network cannot hear the conversation.

Volume: Pressing the Volume DOWN button will lower 
the volume and pressing the Volume UP button will 
increase the volume.

Intercom 
Models NLS1 & NLS1C (1)
 

NLS2 & NLS2C (2)

Rubber Pads 
Models NLS1 & NLS1C (1)
 

NLS2 & NLS2C (2)

Channel Select Button: Press 
the Channel Select button to set 
intercom to one of four secure 
channels or the paging channel. 
The default channel for the intercom 
is the paging channel where all four 
channel lights are lit. An intercom 
on a channel can only hear an 
intercom on the same channel or on 
the paging channel.

Battery: The AA Alkaline batteries 
(not provided) will last up to a year 
depending on use. When batteries 
are low intercom will emit three 
beeps every ten minutes.
A DC Adapter (not provided) can 
also be used to power the intercom. 
In this case, the channel lights will 
remain on.

Conference Mode: Conference Mode allows multiple 
intercoms to participate in a conversation compared 
to Normal Mode in which only two intercoms 
can communicate. All intercoms must be set 
to the same channel or the paging channel 
to be in Conference Mode. To put intercom 
in Conference Mode set Dipswitch #2 to UP 
position.

Monitor Mode: Monitor Mode 
is used to monitor the noise in a 
specifi c room. Place the intercom 
in the room that is to be monitored 
and press the Monitor button until 
a tone is heard. For extended 
Monitor usage, consider using a 
plug-in transformer. Any other networked intercom can 
listen to that room. If a specifi c channel is selected 
for Monitor Mode then only other intercoms on that 
channel or on the paging channel can listen. Press the 
Talk button to exit Monitor Mode. A tone will be heard 
indicating Monitor Mode is no longer active.

Voice Activation Mode (VOX): Voice Activation Mode 
(VOX) allows a call to be answered without pressing 
the Talk button. Once a call is heard on an intercom 
which has been set to VOX, a response can be given 
by speaking loudly into the intercom. There will be a 
slight delay when VOX is fi rst activated by a voice, 
but will continue to transmit audio until the 
speaking stops. To put intercom into VOX, 
place Dipswitch #1 to the UP position. While 
in VOX mode, a call may be initiated by 
pressing the TALK button.

Volume 
UP 
Button

Talk 
Button

Learn Button

Dipswitch #1
Dipswitch #2

AC Adapter

® 

OPTIONAL

1

2

1

2

Channel 
Select Button

Channel 
Lights

Active Light

Volume 
DOWN 
Button

Monitor 
Button

Speaker