Epever UP2000-HM6021 - Page 11

9
 RJ45 pin definition：
Pin
Definition
Pin
Definition
1
+5VDC
5
RS485-A
2
+5VDC
6
RS485-A
3
RS485-B
7
GND
4
RS485-B
8
GND
CAUTION
Please refer to the "UPower-Hi-Attachment" or contact our technical supporters for
the currently supported BMS manufacturers and the BMS parameters.
② Dry contact interface
 Working principle: When the battery voltage reaches the dry contact ON voltage (DON), the dry
contact is connected. Its coil is energized. The dry contact can drive resistive loads of no more than
125VAC /1A, 30VDC/1A. According to different battery types of the inverter charger, the default
values of the dry contact ON (DON) voltage and the dry contact OFF(DOF) voltage are different.
Please refer to the chapter 3.5 Settings > item 19 DON and item 20 DOF for details.
③ RS485 interface（DB9 female）
DB9 pin definition for RTU-type UP-Hi series:
Pin
Definition
Pin
Definition
1-2
NC
6
NC
3
+12VDC
7
RS485-A
4
GND2(+12VDC power ground)
8
RS485-B
5
GND1(+5VDC power ground)
9
+5VDC
DB9 pin definition for other types UP-Hi series:
Pin
Definition
Pin
Definition
1-4
NC
7
RS485-A
5
GND
8
RS485-B
6
NC
9
+5VDC