Huawei SUN2000-4.95KTL-JPL0 User Manual page 51

SUN2000-4.95KTL-JPL0
User Manual
Table 5-2 COM port pin definitions
No.
1
2
3
4
5
6
7
8
Procedure
Step 1 Connect the signal cable to the signal connector.
● Ensure that the protection layer of the cable is in the connector. Surplus core is
● Ensure that the exposed core is totally inserted into the cable hole.
● Ensure that the signal cable is connected securely.
● Ensure that the cable is not twisted.
● Ensure that the signal connector is connected securely.
Issue 04 (2023-02-17)
Pin
485B1
485A1
485B2
485A2
N/A
N/A
PE
PE
NO TICE
cut off from the protection layer.
Copyright © Huawei Technologies Co., Ltd.
Definition
RS485B, RS485 differential
signal–
RS485A, RS485 differential
signal+
RS485B, RS485 differential
signal–
RS485A, RS485 differential
signal+
N/A
N/A
Shielding ground
Shielding ground
5 Electrical Connections
Description
Cascades solar inverters
for RS485
communication.
Cascades solar inverters
for RS485
communication.
N/A
N/A
Connects to the
shielding layer of cables.
Connects to the
shielding layer of cables.
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