PLC CCO01A
User Manual
4 Electrical Connections
Issue 02 (2016-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
27
The RS485 communications cable is 0.8 m long. If the RS485 communications cable needs to be
used, ensure that the PLC CCO is no more than 0.7 m away from the port to be connected to the
RS485 communications cable.
If the RS485 communications cable needs to be prepared by the customer, it is recommended that a
CAT 5E outdoor shielded network cable with a diameter less than 9 mm, internal resistance no
greater than 1.5 ohms/10 m, and a shielded RJ45 connector be used.
The cable terminal block delivered with the SmartLogger1000 is available.
Context
Figure 4-10
shows the connector when the surface without the fastener faces upwards.
Table
4-5
defines the cable sequence numbers and pins.
Figure 4-10
Connector
Table 4-5
Pin definitions
No.
Pin Definition
Description
1
Reserved
N/A
2
Reserved
N/A
3
12 Vin, power
N/A
4
RS485+, RS485 differential
Connects to the COM + port of
the SmartLogger1000.
5
RS485-, RS485 differential
signal -
Connects to the COM - port of
the SmartLogger1000.
6
Reserved
N/A
7
Reserved
N/A
8
PGND
N/A
