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COM Port Pin Definitions
Definiti
No.
Function
on
RS485
485A1-
1
differential
1
signal +
RS485
3
485B1-1
differential
signal –
Ground point
5
PE
on the shield
layer
RS485
7
485A2
differential
signal +
RS485
9
485B2
differential
signal –
11
–
–
13
GND
GND
15
DIN5
OVGR
Description
No.
2
Used to cascade
inverters or
connect to the
SmartLogger.
4
–
6
Reserved.
Connects to the
8
RS485 signal
port on the
power grid
10
scheduling
power meter.
–
12
–
14
–
16
10
Definitio
Function
n
RS485
485A1-2
differential
signal +
RS485
485B1-2
differential
signal –
Ground
PE
point on the
shield layer
DIN1
DIN2
Reserved.
DIN3
DIN4
GND
Description
Used to cascade
inverters or
connect to the
SmartLogger.
–
–
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