DESCRIPTION
MDTK COMPONENTS
KEYPAD FEATURES
The MDTK Digital Keypad is one of Linear’s MegaCode series of wireless
radio controls designed for use with automatic garage door and gate
operators. The MegaCode radio format provides unparalleled security with
more than a million different codes.
In operation, the user enters their unique code on the unit’s keypad (1 to 6
digits long) and presses the START/STOP button to activate the door operator.
For up to 30 seconds after the last activation, the MDTK can be re-triggered by
simply pressing the START/STOP button again.This allows the user to stop or
reverse the opener quickly, without having to re-enter their code.
The MDTK has built-in keypad lighting for use at night or in dark areas. The
clear silicone keys are backlit with a pleasing green glow. By pressing the
START/STOP button first, before entering their code, the user can light up
the keypad. Pressing the START/STOP button twice at any time will light up
the keypad.
MDTK
HINGED COVER
PROTECTS THE
KEYPAD
DIGITAL KEYPAD
TRANSMITTER
Installation Instructions
TEN KEYS FOR ENTERING
1-6 DIGIT KEYPAD CODES
USING NUMBERS OR LETTERS
SCREW
PLUGS
SOFT GREEN LIGHTS
ILLUMINATE THE KEYS
FOR NIGHTTIME USE
A
B
C
The keypad lockout timer will disable the keypad after 10 activations. The
keypad must remain idle for 30 seconds before new attempts.
START/STOP BUTTON STAYS ACTIVE FOR
30 SECONDS AFTER A CODE IS USED SO THE
OPENER CAN BE STOPPED OR REVERSED
SCREW
ANCHORS
MegaCode receivers are programmed by sending a signal from the user’s
transmitters.This stores the transmitter’s code into the receiver’s memory.The
receiver will retain its memory even without power and will only activate from
these “memorized” transmitters. Each MDTK keypad code can be considered
a different transmitter. Each MegaCode receiver can remember a maximum
of 10 transmitters (40 for gate receivers). Any combination of portable
transmitters and keypad codes up to the maximum number can be entered.
MOUNTING
SCREWS
MDTK
NOTE: FOR SECURITY, THE KEYPAD WILL SHUTDOWN
AFTER 10 CODE ENTRIES UNTIL IT IS IDLE FOR 30 SECONDS
THE MDTK CAN BE PROGRAMMED INTO LINEAR'S MEGACODE
GARAGE DOOR OPERATORS AND RECEIVERS ONLY
(760) 438-7000 • FAX (760) 931-1340
PROGRAMMING OPERATORS
PROGRAMMING RECEIVERS
THE MDTK CAN BE PROGRAMMED INTO MDR,
ENTER A
1 TO 6 DIGIT
CODE ON
THE KEYPAD
PRESS RECEIVER PROGRAMMING
BUTTON 1 OR 2 WITHIN 20 SECONDS
➥
➥
NOTE: Be sure to press the receiver
program button for less than 2 seconds.
1
2
MDR-2, MDRG AND SMDRG RECEIVERS. LOCATE
THE PROGRAM BUTTON(S) AND LED ON THE
SIDE OF THE RECEIVER CASE.
PRESS THE OPERATOR'S LEARN LIGHT GLOWS
1
LEARN BUTTON
FOR 15 SECONDS
WARNING: Door operator will not
activate when the receiver is being
programmed from the transmitter, but
the door operator will activate the next
time the transmitter is activated after
programming.
CHANNEL ONE
PROGRAMMING
BUTTON
1
2
OPERATOR LIGHTS
FLASH WHEN THE
KEYPAD CODE IS
ACCEPTED
PROGRAMMING
LED
NOTE: PRESSING THE LEARN BUTTON FOR
MORE THAN 10 SECONDS WILL ERASE ALL
KEYPAD CODES AND REMOTE CONTROLS
PRESS
START/STOP
WITHIN 5
THE RECEIVER LED
WILL LIGHT FOR 5
SECONDS IF THERE
IS ROOM IN THE
RECEIVER LED
5
4
3
➥
NOTE: The programming LED also
monitors radio signals entering the
receiver. It is common to see an
occasional blink from the LED. The
LED will also light when any
transmitter tuned to the receivers
frequency (programmed into the
receiver or not) is activated.
2
WILL FLASH AS
TRANSMITTER IS
ENTERED
CHANNEL TWO
PROGRAMMING
BUTTON (MDR-2
ONLY)
WHILE THE LEARN
LIGHT IS ON, ENTER
A 1-6 DIGIT KEYPAD
CODE AND PRESS
THE KEYPAD'S
SECONDS
RECEIVER MEMORY
1
START/STOP KEY
1
2
2
CONNECT AND POWER THE RECEIVER AS
DESCRIBED IN IT'S INSTALLATION INSTRUCTIONS.
REPEAT STEPS 1 & 2
FOR ANY ADDITIONAL
KEYPAD CODES
3
WALL MOUNTING
KEYPAD OPERATION
CHANGING BATTERIES
LINEAR LIMITED WARRANTY
This Linear product is warranted against defects in material and workmanship for twelve (12)
months. The Warranty Expiration Date is labeled on the product. This warranty extends only
to wholesale customers who buy direct from Linear or through Linear’s normal distribution
channels. Linear does not warrant this product to consumers. Consumers should inquire from
their selling dealer as to the nature of the dealer’s warranty, if any. There are no obligations or
liabilities on the part of Linear LLC for consequential damages arising out of or in connection with
use or performance of this product or other indirect damages with respect to loss of property,
revenue, or profit, or cost of removal, installation, or reinstallation. All implied warranties,
including implied warranties for merchantability and implied warranties for fitness, are valid only
until Warranty Expiration Date as labeled on the product.This Linear LLC Warranty is in lieu of all
other warranties express or implied.
DAYTIME OPERATION
2
1
REMOVE THE TWO
SCREWS AND SLIDE
REMOVE THE
LOW BATTERY
AND DISPOSE
OF IT PROPERLY
1
ENTER THE KEYPAD CODE
PRESS START/STOP
THE BATTERY COVER OFF
2
MOUNT THE KEYPAD IN
CLEAR VIEW OF THE DOOR
WITH THE TWO SCREWS SUPPLIED
INSTALL A FRESH
9-VOLT ALKALINE
OR LITHIUM
USE THE SCREW
ANCHORS SUPPLIED
IF REQUIRED
1-6 DIGIT KEYPAD CODE THAT
WAS ENTERED INTO OPENER
All products returned for warranty service require a Return Product Authorization Number
(RPA#). Contact Linear Technical Service at 1-800-421-1587 for an RPA# and other important
details.
BATTERY
NIGHTTIME OPERATION
IMPORTANT !!!
1
PRESS START/STOP (LIGHTS KEYPAD)
ENTER THE KEYPAD CODE
PRESS START/STOP
Linear radio controls provide a reliable communications link and fill an important need in portable
wireless signaling. However, there are some limitations which must be observed.
For U.S.installations only:The radios are required to comply with FCC Rules and Regulations
as Part 15 devices. As such, they have limited transmitter power and therefore limited
range.
A receiver cannot respond to more than one transmitted signal at a time and may be blocked
by radio signals that occur on or near their operating frequencies, regardless of code
settings.
2
3
3
4
•
REPLACE THE
BATTERY COVER
AND INSTALL
BE SURE THE
SILICONE
GASKET IS
IN PLACE
SCREW
PUSH IN THE
ANCHORS
•
TWO SCREW
COVERS TO HIDE
THE SCREWS
THE TWO SCREWS
•
•
Changes or modifications to the device may void FCC compliance.
Infrequently used radio links should be tested regularly to protect against undetected
interference or fault.
1-6 DIGIT KEYPAD CODE THAT
WAS ENTERED INTO OPENER
•
A general knowledge of radio and its vagaries should be gained prior to acting as a wholesale
distributor or dealer, and these facts should be communicated to the ultimate users.
NOTE: TO STOP OR REVERSE THE OPERATOR , THE START/STOP BUTTON
CAN BE PRESSED AGAIN FOR UP TO 30 SECONDS WITHOUT RE-ENTERING
THE CODE
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