®
Models NLS1, NLS2, NLS1C & NLS2C
Wireless Portable Intercom - Extreme Range
Channel Select Button: Press
Overview
HO
LD
O
FF
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.
V
OL
UM
E
ACTI
VE
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.
MONIT
OR
TA
LK
1
3
CHA
NNE
L
2
4
Carton Inventory
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.
HOLD
OFF
2
VOLUME
MONITOR
1
A L K
I V
T
4
C T
3
E
V O
O F F
H O
L U
M E
L D
M O
I T
N
O R
Rubber Pads
Models NLS1 & NLS1C (1)
ACTIVE
TALK
CHANNEL
1
3
NLS2 & NLS2C (2)
2
4
OPTIONAL
Intercom
Models NLS1 & NLS1C (1)
NLS2 & NLS2C (2)
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
Operation & Features
1
2
Active Light
Channel
Lights
Talk
Button
in Conference Mode set Dipswitch #2 to UP
position.
Channel
Select Button
Speaker
2
1
T A
E
4
L
K
A C T I V
O F F
3
Monitor
Button
Monitor Mode: Monitor Mode
is used to monitor the noise in a
specific room. Place the intercom
in the room that is to be monitored
and press the Monitor button until
a tone is heard. For extended
V
O L U
Volume
DOWN
Button
H
O L
M E
D
M O N
I
T O
R
HO
LD
O
FF
V
OL
UM
E
ACTI
VE
MONIT
OR
TA
LK
Volume
UP
Button
1
3
CHA
NNE
L
2
4
Dipswitch #1
Dipswitch #2
AC Adapter
Learn Button
Monitor usage, consider using a
plug-in transformer. Any other networked intercom can
listen to that room. If a specific 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indicating Monitor Mode is no longer active.
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
HO
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.
LD
O
FF
V
OL
UM
E
AC
TI
VE
MONIT
OR
TA
LK
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 first 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.
1
2
Volume: Pressing the Volume DOWN button will lower
the volume and pressing the Volume UP button will
increase the volume.
1
Troubleshooting
Intercom does not function.
Need to clear intercom’s memory.
Check batteries in intercom. If using a DC Adapter
ensure that it is plugged in.
Ensure intercom is connected to a network.
See Programming Intercom.
Ensure that intercoms are on the same channel.
See Operation & Features.
Press and hold Learn button, an initial beep will be
heard. Continue to hold until a second beep is heard
(about 6 seconds). Ensure other intercoms are not
activated during this time. Once memory is clear the
intercom can be programmed to a new network.
Intercom is sending audio while no buttons are
pressed.
The sending intercom is set to Monitoring Mode or Voice
Activation Mode and will activate when sound is heard.
It can be taken out of Monitoring Mode by pressing the
Talk button. It can be taken out of Voice Activation Mode
by setting Dipswitch #1 to DOWN position.
Intercom is not getting expected transmission
range.
Keep antenna vertical. Keep intercom away from metal
objects and electrical wiring. Cell phones, cordless
phones, or other radio devices may also limit range.
See Operation & Features.
Intercom beeps every ten minutes.
The battery is low in the intercom. Replace with AA
Alkaline batteries or operate it with DC Adapter
(not provided). A 12 Volt, 300mA DC Adapter may be
used (center positive polarity on the round plug).
Intercom can not be programmed to network.
A network may contain up to 12 intercoms or doorbells.
It may be necessary to clear the network and reprogram
all the intercoms to the network.
See Programming Intercom.
Static and feedback is heard in intercom.
The intercoms are too close to each other. A cordless
phone, cell phone, or other radio devices can also cause
static.
NOTE: Manufacturer is not responsible for any radio or
TV interference caused by unauthorized modifications to
this equipment. Changes or modifications not expressly
approved by the manufacturer could void the authority
to operate the equipment.
The intercom does not connect to another intercom
and a green light is on longer than 3-1/2 minutes.
The intercom is out of range. Place the intercom closer
to the other intercoms in the network, with the antenna
pointing up.
The other intercom in the network has no power.
Replace the batteries.
The intercom has not completed programming.
Clear the intercom's memory and reprogram.
3
One Year Limited Warranty
The Chamberlain Group, Inc. warrants to the first retail purchaser of this product that it is free from defect in materials
and/or workmanship for a period of 1 year from the date of purchase.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Optional Accessory
41B238
12 Vdc 300mA Adapter
FOR TECHNICAL SUPPORT DIAL OUR TOLL FREE NUMBER:
1-800-528-9131
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of this
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the battery.
THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
© 2010, The Chamberlain Group Inc.
All Rights Reserved
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