Lin
Dat
Clk
Neg
Pos
Lin
Dat
Clk
Neg
Pos
Keypad Bus Check
Lin
Dat
Clk
Neg
Pos
Multi-Meter
Range: Volts DC ( )
KP1
L
in
D
at
C
lk
N
eg
Po
s
Power Supply:
From 10.00VDC
To 14.00VDC
Power Check list:
If there is no voltage on the Pos & Neg terminals, check it at the panel. If there’s volts there you've got a
cable fault, If there is no volts there either, the fuse might have tripped. So remove the Red wire and test
from the panel again. Powering down the panel many be required to reset the fuse.
KP1
L
in
D
at
C
lk
N
eg
Po
s
Multi-Meter
Range: Volts DC ( )
Clock:
From 2.00VDC
To 3.00VDC
Clock Check list:
If there is no voltage on the Clk & Neg terminals, check it at the panel. If there’s volts there you've got a
cable fault. If there is no voltage there either, remove all wires in the Clk terminal and check again. If this
gives you volts then there is a cable short somewhere, or a faulty device connected.
If you have closer to 5volts there you might have the Data wired in by mistake or a short to Data.
Please try connecting Just one device directly to the panel, on a 1meter length of cable.
KP1
L
in
D
at
C
lk
N
eg
Po
s
Multi-Meter
Range: Volts DC ( )
Data Check list:
If there is no voltage on the Dat & Neg terminals, check it at the panel. If there’s volts there you've got a
cable fault. If there is no voltage there either, remove all wires in the Dat terminal and check again. If this
gives you volts then there is a cable short somewhere, or a faulty device connected.
If you have closer to 2volts there you might have the Clock wired in by mistake or a short to Clock.
Please try connecting Just one device directly to the panel, on a 1meter length of cable.
Data:
From 4.00VDC
To 5.00VDC
Test 1
Test 2
Test 1
Test 1
Test 2
Test 2
