Chamberlain Group The NTD Wireless Portable Intercom User Manual 1
Chamberlain Group Inc, The Wireless Portable Intercom 1
Contents
- 1. User Manual 1
 - 2. User Manual 2
 
User Manual 1

Carton Inventory
Overview
The Intercom has up to a 1000' 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.
Mounting Tape
1
Alcohol Wipe
Intercom (2)
Operation & Features
Call Mode: In Call Mode the intercom may only be 
used to call the intercom network and will not be able 
to hear conversation from within the network.
To put intercom into Call Mode place 
Dipswitch #1 to the UP position.
Volume: To increase the intercom 
volume, place Dipswitch #4 to the UP 
position.
Sensitivity: The sensitivity setting 
controls the speaker volume on the 
other intercom. To increase the 
speaker volume on the other intercom place 
Dipswitch #3 to the UP position.
NOTE: Dipswitch #2 is not used.
Talk Button: To talk, hold down the Talk button and 
all intercoms in the network will receive the signal. 
When holding down the Talk button on a different 
intercom, a secure channel is created and the other 
intercoms in the network do not hear the 
conversation.
Battery: The AA Alkaline batteries (not provided) will 
last up to a year depending on use (Lithium batteries 
recommended for colder environments). When the 
batteries are low it will emit two beeps every ten 
minutes.
Talk Button
Speaker
Model NTD2
Wireless Portable Indoor/Outdoor 
Intercom
® 
Learn Button
Dipswitch 
Block
Mounting Intercom
Step 1
Mount Intercom with small silver screws. See 
mounting template on page 3. Screw the top two 
screws halfway into the mounting surface. Place back 
of intercom over screws. Tighten screws.
The Intercom can be mounted by using the included 
screws or by using the double-sided mounting tape. It 
is recommended to use the mounting tape on 
surfaces such as metal or glass.
Put the remaining silver screws into the bottom holes 
of intercom. Tighten screws.
Mounting with Screws
Step 2

2
Step 1
Peel off white paper from mounting tape. Firmly 
press mounting tape on back of intercom.
Peel paper from mounting tape. Firmly press 
intercom onto mounting surface.
Clean back of intercom and mounting surface using 
the alcohol wipe.
Mounting with Tape
Step 2
Step 3
Assemble Intercom
Create New Network
The intercom must be programmed to at least one 
other intercom to become a network or it can be 
programmed into an existing network.
Press the Learn button on the new intercom until a 
beep is heard. Within 5 seconds put the second 
intercom into Learn Mode (refer to table below).
Add to an Existing Network
Each intercom will emit a tone when programmed into 
network. Repeat for any additional intercoms.
NOTE: Do not program new intercoms to each other 
before adding them to the network or they will form a 
separate network and the memory will need to be 
cleared.
Install 4 AA Alkaline batteries (not provided). (Lithium 
batteries recommended for colder environments.)
Programming Intercom
Each intercom will emit a tone when programmed into 
network. Repeat for any additional intercoms.
INTERCOM LEARN MODE
  Press the Learn button  
    until a beep is heard.
  Press and hold both buttons  
  for 5 seconds.
OR
Press the Learn button on the new intercom until a 
beep is heard. Within 5 seconds put any networked 
intercom into Learn Mode (refer to table below).
INTERCOM LEARN MODE
  Press the Learn button until  
  a beep is heard.
  Press and hold both buttons  
  for 5 seconds.
OR

3
Troubleshooting
Intercom does not function.
Check batteries in Intercom. When you press the Talk 
button you should hear a tone. 
Ensure Intercom is connected to a network. 
See Assemble & Program.
Intercom is not getting expected transmission 
range.
Keep Intercom away from trees, metal objects and 
electrical wiring. Do not mount intercom on a tree, 
masonry, or metal surface.
Intercom beeps every ten minutes.
The battery is low in the intercom. Replace with AA 
Alkaline batteries.
Need to clear intercom’s memory.
Press and hold Learn button, an initial beep will be 
heard. Continue to hold until a second beep is heard 
(about 15 seconds). Ensure other intercoms are not 
activated during this time. Intercoms in the network 
that are on will signal during the clearing process. 
Once memory is clear the intercom can be 
programmed to a new network.
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.
Secure cover with the two large black screws.
1 3/8"
4 1/4"
2"
Mounting Template
Secure Cover

  © 2009, The Chamberlain Group Inc.
114A4097  All Rights Reserved
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.
FOR TECHNICAL SUPPORT DIAL OUR TOLL FREE NUMBER:
1-800-528-9131
www.chamberlain-DIY.com
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.