Linear DT-2A - Manual (Page 2)

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 removing 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 a 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.
SETTING CODE SWITCH “B”
To gain access to Coding Switch “B”, first
remove the screw in the 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.
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”.
INSTR,CODE SET,DT-2A,RESONATOR
Linear P/N: 207403 G
Material: 20 Lb Mead Bond
Ink: Black
Scale: 1-1
Side 2 of 2
5.50
0"
8.500"
BATTERY
CODING SWITCH "A"
ROTATE CLIP
AWAY FROM
BATTERY DOOR 5
8 7
1
4 3
O
F
F
O
N
6
Keys 1, 2, 3, 4,
and 6 OFF
Keys 5, 7
and 8 ON
CODING
SWITCH
"A"
CODING
SWITCH
"B"
REAR VIEW WITH
BACK COVER REMOVED
TO ACCESS SWITCH "B"