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DT-2A TWO-BUTTON TRANSMITTER CODE SETTING
There are two digital coding switches in the DT-2A transmitter. Code
Switch “A” is exposed by removing the battery access cover. It is the
coding switch for the left button on the front of the transmitter (Button
“A”). Code Switch “B” is the coding switch for the right button on the
front of the transmitter (Button “B”). The switch is located behind the
back cover of the transmitter. To access Coding Switch “B”, it is
necessary to remove the screw located in the middle of the back cover.
SETTING CODE SWITCH “A”
Before removig the battery access door, loosen battery clip screw and
rotate clip away from door. To open the battery access cover and gain
access to Coding Switch “A”, lift off the small L-shaped cover by
inserting your thumbnail or small screwdriver under either of the two
slots at the edge of the case. The coding switch has eight keys
numbered 1-8. To set a code, select any combination of ON or OFF
positions for the switch keys numbered 1-8. Use a paper clip or other
pointed object (except a pencil or pen) to set the keys on the coding
switch. The ON position is when the top of the switch is down.
TRANSMITTERS CODE MUST MATCH RECEIVER CODE
Switch “A” is designed for use with a garage door opener. The code
set to Switch “A” must be identical to the code set in the receiver to
be used in conjunction with Push-button “A”.
Switch “B”, under the back cover is designed for use with less-
frequently changed codes, such as a community gate operated by
Push-button “B”. The code set into Switch “B” must be identical to
the code set in the receiver to be used in conjunction with Push-
button “B”.
256 AVAILABLE CODES ON EACH SWITCH
You can select any one of 256 codes on Switch “A” and also any one
of 256 codes on switch “B”.
NOTE:
The manufacturer strongly recommends that you test your equipment
frequently. From the time of installation, it is absolutely necessary to
test the system at least once a week. It is also good practice to change
the 9-volt battery every six months.
NOTE:
The transmitter transmits continuously with button depression. An
LED lights during transmission to indicate battery operation.
INSTR,CODE SET,DT-2A,DNT00017A
P/N: 10030390_Rev-X1
Material: 20 Lb Mead Bond
Ink: Black
Scale: 1-1
Side 2 of 2
5.500"
8.500"
BATTERY
CODING SWITCH “A”
ROTATE CLIP
AWAY FROM
BATTERY DOOR
CODING
SWITCH
"A"
CODING
SWITCH
“B”
REAR VIEW WITH
BACK COVER REMOVED
TO ACCESS SWITCH “B”
5
8
7
1
4
3
O
F
F
O
N
6
Keys 1, 2, 3, 4,
and 6 O FF
Keys 5, 7
and 8 ON
2
SETTING CODE SWITCH “B”
middle of the back cover. Remove the back cover to expose the 8-key
switch.
To set a code, select any combination of ON and OFF positions for the
switch keys, in the same manner as described for Coding Switch “A”.
CAUTION
It is not advisable to set a code with all keys ON, OFF, or alternating
ON and OFF, because these codes are too easy to duplicate.
Left Button "A"
Right Button "B"
Battery
Test Light