Connector
|
Interface Name
|
PIN NO.
|
ENJBMS2A24S50/100/200/300 ENJBMS2A24S50P/100P/200P/300P
|
Name
|
Definition
|
P1
|
Equalization and Acquisition Interface
|
1
|
B0
|
Negative terminal of the 1st battery
string
|
2
|
B1
|
Positive terminal of the 1st battery
string
|
3
|
B2
|
Positive terminal of
the 2nd battery string
|
4
|
B3
|
Positive terminal of
the 3rd battery string
|
5
|
B4
|
Positive terminal of
the 4th battery string
|
6
|
B5
|
Positive terminal of
the 5th battery string
|
7
|
B6
|
Positive terminal of
the 6th battery string
|
8
|
B7
|
Positive terminal of
the 7th battery string
|
9
|
B8
|
Positive terminal of
the 8th battery string
|
10
|
B9
|
Positive terminal of
the 9th battery string
|
11
|
B10
|
Positive terminal of
the 10th battery string
|
12
|
B11
|
Positive terminal of
the 11th battery string
|
13
|
B12
|
Positive terminal of
the 12th battery string
|
14
|
B13
|
Positive terminal of
the 13th battery string
|
15
|
B14
|
Positive terminal of
the 14th battery string
|
16
|
B15
|
Positive terminal of
the 15th battery string
|
17
|
B16
|
Positive terminal of
the 16th battery string
|
P2
|
1
|
B17
|
Positive terminal of
the 17th battery string
|
2
|
B18
|
Positive terminal of
the 18th battery string
|
3
|
B19
|
Positive terminal of
the 19th battery string
|
4
|
B20
|
Positive terminal of
the 20th battery string
|
5
|
B21
|
Positive terminal of
the 21st battery string
|
6
|
B22
|
Positive terminal of
the 22nd battery string
|
7
|
B23
|
Positive terminal of
the 23rd battery string
|
8
|
B+
|
Positive terminal of
the battery pack
|
P3
|
Switch interface
|
1
|
Function when the switch is turned off: BMS operates
normally with power supply
Functions when the switch is turned off:
1.All BMS power are disconnected.
2.Charging and discharging functions are disabled
|
2
|
P4
|
Display interface
|
1
|
LCD power supply positive terminal
|
2
|
LCD 3.3V positive terminal
|
3
|
LCD RXD
|
4
|
LCD TXD
|
5
|
LCD power supply negative terminal
|
6
|
LCD control power ON/ OFF
|
P5
|
Bluetooth interface
|
1
|
Bluetooth power
positive
|
2
|
Bluetooth enable
positive
|
3
|
Bluetooth RXD
|
4
|
Bluetooth TXD
|
5
|
Bluetooth power negative
|
6
|
Bluetooth reset
|
P6
|
DTC
|
1
|
Dry contact point 1
|
2
|
Dry contact point 1
|
3
|
Dry contact point 2
|
4
|
Dry contact point 2
|
P7
|
SOC LED
Note 1 Explanation
|
1
|
LED power supply +3.3V
|
2
|
LED1
|
3
|
LED2
|
4
|
LED3
|
5
|
LED4
|
6
|
LED5
|
7
|
LED Power Ground
|
P8
|
HEAT NTC
|
1
|
Heated NTC detector terminals
|
2
|
Heated NTC ground
|
P9
|
SOC Lamp Board
Switch Interface
|
1
|
The short press LED will indicate the actual capacity
of the battery according to the SOC value, see note 1 for details.
|
2
|
P10
|
RS485 communication interface
|
1
|
RS485 Isolated 5V
|
2
|
RS485_B
|
3
|
RS485_A
|
4
|
RS485 Isolated Straight Ground
|
P11
|
CAN communication interface
|
1
|
CAN Isolated 5V
|
2
|
CANH
|
3
|
CANL
|
4
|
CAN Isolated Ground
|
P12
|
RS232 communication interface
|
1
|
NC
|
2
|
RS232_TXD
|
3
|
RS232_RXD
|
4
|
RS232 Ground
|
P13
|
Heating Interface
|
1
|
Heater Negative
|
2
|
Heater Negative
|
P14
|
Temperature interface
|
1
|
1stNTC Negative
|
2
|
1stNTC Positive
|
P15
|
DIAL Switch
|
1
|
Dial switch function, please refer to Note 2 for
details. Setting the address code of each battery for communication when
multiple batteries are connected in parallel
|
B+
|
Connect to the overall positive
terminal of the battery pack
|
B-
|
Connect to overall negative terminal of
the battery pack
|
P-
|
Connect to external load negative terminal
or charger negative terminal
|