Chamberlain Intercom System NLS1 User Manual

®
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  
114A4095C  
 

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