Step 11: Open The Control Box; Step 12: Select Mounting Holes; Step 13: Mount Control Box - Chamberlain LA400 Installation And Operation Manual

NOTE: It is recommended that the control box be mounted within 3' (.9 m) of Gate 1 or Gate 2.

Step 11: Open the Control Box

Remove screws and open the control box.
Screws (4)

Step 12: Select Mounting Holes

Select holes to be used for mounting and knock out using a screwdriver and hammer.
ALARM
NO
C
MAGLOCK
NO
C
NC
Z1
GATE 1
BRN
GRN
WHT
YEL
BLU
RED
Z12
ACCESSORY
POWER
Knock Outs
24V
BRN
GRN
WHT
YEL
BLU
RED
GATE 2
R4 C2
24 VAC/
J4

Step 13: Mount Control Box

Secure control box to mounting surface (post, wall, column, etc.) using appropriate hardware.
Square Gate
Post
Screw
Knock Outs
P2
R223
CLOSE
J19
EDGE
K6 Ø14GPØ89ØE
Ø14LGØ89ØE
Ø14SKØ89ØE
R2Ø7
Z2Ø
R227
K5
OPEN EDGE/
PHOTO
L1
R224
U4 Z22
1 S8 R92
OFF ON SAVE
R2
OFF ON MAGLOCK Z9
LEARN SINGLE DUAL MODE
OPEN
R1 XMITTER NO NC EDGE
PHOTO
10A 32V NO NC PHOTO
2
S1
F3 R91
R94
D1Ø K2
Z8
CLOSE
DIAGNOSTIC
PHOTO
R93
GATE 1
SET SET
K1 LEARN
Q9
OPEN CLOSE 24V
LIMITS
LIMIT LIMIT
SWITCHED
TIMER
R9Ø GATE 2 ACCESSORY
COM OVLD
RUNNING POWER
OVLD
CONTROL
BIPART TIMER TO SINGLE
INPUTS
DELAY CLOSE BUTTON
R1Ø1 FORCE
OPEN
R1ØØ SINGLE BUTTON
F4
ACCESSORY RESET
10A 32V
OVLD
STOP
K4
MIN MAX OFF MAX OFF MAX
COM
F5
COM
D21
R35 POWER
K3 D9
D8 C12
D27 Z3
F7 LOOP
Z4 INPUTS
C13
D22 C4
Q22
SHADOW
U3
INTERRUPT
C11
CHGR COM
D15
R196 OVLD
F6
F2
F1 20A 32V
SOLAR
INPUT
MOV2
MOV1 R9 D4
D1 FUSE
C64 BATT 2 BATT 1
JMPR2 JMPR1 OPEN
U2 D2
DB1
Knock Outs
18
Knock Outs
Round Gate
Post
Lock Washer
(Not Provided)
Hex Nut
(Not Provided)
Knock Outs
U Bolt
(Not Provided)
Washer
(Not Provided)