always, NC port
2 Center control close, signal
output
3 Center control close, close
always, NO port
4 Center control open, open
always, NC port
5 Center control open, signal
output
6 Center control open, close
always, NO port
the backside description after a concretely install, ought to the
function is to provide the phone long distance on/off car door
lock used/ for the customize 24V, system doesn't consist this
function
7 Light direction control
input/output
8 Light direction control
input/output
Separate connected to the car turnaround lights
9 Alarm horn control output Police report voltage output, provide output 12V/3Ato the
energy sources to drive the electronic speaker
10 Positive power supply input Connected to the electric flask in positive 12V to provide the
power supply
11 Minus power supply interface Connected to the negative electric flask
12 GND
13 SOS test Connected to the SOS button
14 Car Audio control (only valid
for VC-398GGTBA) Outside relay connection control is needed to control car audio
15 Engine power off output Control the 40Arelay motion to cut off the engine power supply
16 Car door test/ minus triggered Use to test whether the car door is open or close
17 Foot brake test Connect to foot brake on/off
18 ACC state test Connect to ACC On position, test whether the car is on fire or
not
19
20 Middle control lock signal test
Changed it to the updated version, then connected to the
center control, up/down lock signal test
2. 20 Pins color rank and functions description:
No Color Functions No Color Functions
1 Orange Center control off, NC 11 Black Minus power supply
2 White Close signal output 12 Purple Grey
3 Yellow Center control off, NO 13 Green yellow SOS test
4 Orange/Black Center control on, NC
(only valid for
VC-398GGTBA)
14 Orange/Black Outside hang relay
control back case
5 White/Black Open signal output 15 Yellow Power cut
10
