
Bi1248
‐
1200
User
Manual
10
5.3
COM
terminal
definition
The
COM
terminal
is
for
communication
signal,
voltage
sampling
signal,
and
a
dry
contact
signal.
The
pins
are
defined
as
follows.
Table
5
Communication
terminal
definition
on
BI
charger
Pin
No.
Function
Description
Diagram
1
IGN
Engine
ignition
signal
2
VOL_BAT
‐
Service
battery
voltage
sampling
line
3
4
‐
‐
5
RS485
‐
A
RS485
communication
signal
6
RS485
‐
B
7
CAN
‐
H
CAN
communication
signal
8
CAN
‐
L
9
DRY_DO_NO1
Dry
contact
output,
normally
open
contact
10
DRY_DO_NO2
11
DRY_DI_NO1
Dry
contact
input,
normally
open
contact
12
DRY_DI_NO2
13
TEMP_BAT1
Service
battery
temperature
sampling
line
14
TEMP_BAT1
15
V
Starter
battery
voltage
sampling
16
VOL_SBAT
‐
Table
6
Wire
definition
on
plug
supplied
Pin
No.
Wire
Color
Function
Diagram
1
Black
IGN
1
5 4
2
3
6
7
8
9
12
10
11
14
15
16
2
Brown
VOL_BAT
‐
3
Red
4
‐
‐
5
Orange
RS485
‐
A
6
Yellow
RS485
‐
B
7
Blue
CAN
‐
H
8
White
CAN
‐
L
9
Green
DRY_DO_NO1
10
Grey
DRY_DO_NO2
11
Purple
DRY_DI_NO1
12
Black
‐
White
DRY_DI_NO2
13
Black
‐
Blue
TEMP_BAT1
14
Black
‐
Green
TEMP_BAT1
15
Red
‐
Black
V
16
Red
‐
White
VOL_SBAT
‐