Sofar solar SOFAR 25KTLX-G3 - Page 38

SOFAR 25~50KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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For details, please refer to the user manual of USB acquisition stick.
4.5.2.COM—Multi function communication port
Figure 4-18 Recommend COM cable size
Name
Type
Outer diameter
(mm)
Area
(mm²)
RS485
Communication
Wire
Outdoor shielded twisted
pair meets local standards
2 or 3core：4~8
0.25~1
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