REFUSOL 20K-2T - Page 39

REFUsol 20K-2T (853P020.200)
User manual
- 34 -
Communication
Wire
pair meets local standards
Port Description
：
PIN
Define
Function
Note
1
RS485A
RS485 signal+
Wire connection
monitoring or multiple
inverter monitoring
2
RS485A
RS485 signal+
3
RS485B
RS485 signal-
4
RS485B
RS485 signal-
5
Electric meter
RS485A
Electric meter RS485
signal+
Wire connection
Electric meter
6
Electric meter
RS485B
Electric meter RS485
signal-
7
GND.S
Communication
ground
As RS485 signal ground
or DRMS port ground
8
DRM0
Remote shunt down
DRMS port
9
DRM1/5
DRMS port logical IO
10
DRM2/6
11
DRM3/7
12
DRM4/8
13-16
Blank PIN
N/A
N/A
Procedure：