Huawei SUN2000-33KTL-US Quick Manual page 13

2. Route the communications cables into the maintenance compartment.
3. Remove the cable terminal base from the terminal block. Connect the communications cables to
the terminal base.
No. Port Definition
1 RS485A IN
2 RS485A OUT
3 RS485B IN
4 RS485B OUT
NOTE
When connecting the shielded cables, choose whether to crimp the OT terminal based on site
requirements.
4. Install the terminal base on the terminal
block, and connect the shield layer to the
ground point.
RJ45 Network Port Connection
You are advised to use a CAT 5E outdoor shielded network cable with an outer diameter less than
9 mm (0.35 in.) and internal resistance not greater than 1.5 ohms/10 m (1.5 ohms/393.70 in.), as
well as a shielded RJ45 connector.
Description
RS485A, RS485 differential signal +
RS485A, RS485 differential signal +
RS485B, RS485 differential signal –
RS485B, RS485 differential signal –
5. Bind the communications cables.
12