To prevent possible SERIOUS INJURY or DEATH from electrocution:
• Be sure power is NOT connected BEFORE installing the receiver.
To prevent possible SERIOUS INJURY or DEATH from a moving gate
or garage door:
• ALWAYS keep remote controls out of reach of children. NEVER
permit children to operate, or play with remote controls.
• Activate gate or door ONLY when it can be seen clearly, is properly
adjusted, and there are no obstructions to door travel.
• ALWAYS keep gate or garage door in sight until completely closed.
NEVER permit anyone to cross path of moving gate or door.
Universal Radio Control
OWNER’S MANUAL
Model 355LM Security✚®Receiver Only
Model 355-2LM Security✚
®
(With 2 Remote Controls)
NOTICE TO U.S. CONSUMERS:
Some states prohibit the service or repair of garage door openers which
cannot be made to comply with the safety standards contained in UL 325
(1988 revision). In order to comply with both the letter and the spirit of
these laws, this universal radio control should not be used with any
LiftMaster®, Chamberlain®, or Sears Craftsman®garage door opener
manufactured prior to April 1, 1982. To find out if your
Chamberlain-made garage door opener was manufactured prior to or
after April 1, 1982, please call 1-800-528-9131 before installing this
universal radio control.
MOUNTING RECEIVER
• Unplug the opener before proceeding.
• Fully extend antenna wire below bottom of case as shown.
• The receiver can be mounted directly on the door opener with
the clips provided (Figure 1).
OR
• Attached to a ceiling/inside wall of the garage with connecting
bell wire (not provided). Fasten the receiver to the ceiling or
inside garage wall with dry wall screws provided (Figure 2).
NOTE: Transformer Model 85 or 95 is required if your residential
garage door opener is a LiftMaster, Chamberlain or Sears.
INSTALLATION USING CLIPS
Loosen the three terminal screws on the receiver (labeled 1, 2
and 3) (Figure 1). Insert one end of a mounting clip under each
terminal. Do not retighten at this time.
Loosen the three terminal screws on the opener used for push
button controls and radio power.
Leaving the push button bell wire in place, insert the other ends
of the mounting clips under the opener terminal screws.
NOTE: If the number sequence of opener terminals does not
match the receiver, turn the receiver around (so back is facing
out) and complete the connection.
Retighten the terminal screws on opener and receiver.
Reconnect power to the opener. The receiver push bar should
light. If it does not, use Transformer Model 85 or 95.
INSTALLATION USING BELL WIRE
Attach one end of 3-strand bell wire (not provided) to receiver
terminals 1, 2 and 3. Connect the other end to the three opener
terminals used for push button controls and radio power. Use
insulated staples to secure bell wire between receiver and opener
(Figure 2).
Reconnect power to the opener. The receiver push bar should
light. If it does not, use Transformer Model 85 or 95.
INSTALLATION WITH TRANSFORMER
With the transformer, use a 2-wire connection only. Attach wire to
receiver terminals 1 and 2 and to the opener terminals used for
push button control. Plug the transformer into receiver and 120
Volt outlet (Figure 3).
Figure 1
Figure 2
Figure 3
NOTE: Transformer Model 85 or 95 is required if your residential
garage door opener is a LiftMaster, Chamberlain or Sears.
WARNING
Radio Power
Opener
Terminals
Push Button
Antenna Wire Fully Extended
Common
®
Radio Power
Opener
Terminals
Push Button
Common
123
®
Antenna Wire
Fully Extended
Opener Terminals
3
2
1
3
2
Transformer
1
®
©2006 The Chamberlain Group, Inc.
114A3099D All Rights Reserved
PROGRAMMING THE REMOTE TO THE
RECEIVER
With Security✚®, the code between the remote control and the
receiver changes with each use, accessing over 100 billion new
codes.
You can activate your opener with up to 8 Security✚
®
remote
controls and one Security✚
®
Keyless Entry.
1. Pry open the front panel of receiver case with a coin or a
screwdriver (Figure 4). Re-connect power to opener.
2. Press and release the “SMART” button on the receiver. The
“SMART” indicator light will glow steadily for 30 seconds
(Figure 5).
3. Within 30 seconds, press and hold the button on the
hand-held remote that you wish to operate your garage door
(Figure 6).
The opener will now operate when the push button on either the
receiver or the remote control is pressed.
Repeat Steps 2 and 3 for each remote control that will be used
to operate the garage door opener.
TO ERASE ALL REMOTE CONTROL CODES
Press and hold the “SMART” button on the receiver panel until
the indicator light turns off (about 6 seconds). All remote control
codes are now erased. Then follow the steps above to reprogram
each remote control.
REPLACING THE REMOTE
CONTROL BATTERY
The lithium battery should produce power
for up to 5 years. To replace battery, pry
open case with visor clip or screwdriver,
as shown. Insert battery positive side up.
Dispose of old battery properly.
SET OUTPUT DURATION
(COMMERCIAL APPLICATIONS ONLY)
For commercial applications, the receiver can be set for either
constant or momentary closure on the output contacts. Use of
constant closure is prohibited on residential garage door openers
because it overrides the safety reversal devices.
With the jumper in the “M” (Momentary) position, the contacts will
close for 1/4 second regardless of the length of radio
transmission. With the jumper in “C” (Constant) position, the
contacts will stay closed as long as the radio continues
transmitting.
The receiver is factory set at M.
To prevent possible SERIOUS INJURY or DEATH, the use of
CONSTANT OPERATION on residential openers is PROHIBITED.
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.
FOR SERVICE DIAL OUR TOLL FREE NUMBER: 1-800-528-2817
SPECIFICATIONS
Output Rating......................................5 Amps 28VAC or DC Max.
Power ....................................................18V - 30V ~, 30mA, 60Hz
18 - 30V , 30mA
RF Frequency....................................................................315MHz
If the power is other than shown in specifications, Accessory
Transformer Model 85 or 95 is required.
Accessory Remote Controls — Series 300.
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of
this receiver and/or remote control 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.
Figure 5
Figure 6
Figure 4
Indicator
Light
“SMART”
Button
Option
Jumper
3
2
1
®
C
P2
M
C
P2
M
WARNING
WARNING
MOMENTARY
OPERATION
Output
Duration
Terminals
Jumper
M
CONSTANT
OPERATION
Output
Duration
Terminals
Jumper
M