Connecting The Rs485 Signal Spd - Huawei SmartLogger2000 User Manual

SmartLogger2000
User Manual
Figure 4-5 Connecting the PE cable for the RS485 signal SPD
Step 3 Use a flat-head screwdriver to tighten the screws on port 3, as shown by (2) in Figure 4-5.
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4.3 Connecting the RS485 signal SPD

Prerequisites
A two-core or multi-core communications cable with a wire cross sectional area of 0.5–2.5
mm
Context
One RS485 signal SPD provides two RS485 surge protection ports, as shown in Figure 4-6.
(2016-06-20)
To enhance the anti-corrosion performance of the ground terminal, apply silica gel or paint on it after
connecting the PE cable.
For details about how to make the OT terminal at the other end of the cable, see
Step 2 in 4.2.1 Connecting the PE Cable for the SmartLogger.
Connect the other end of the PE cable to the ground bar.
2
has been prepared.
The way of connecting two to three RS485 signal SPDs is the same as the way of connecting one RS485
signal SPD.
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4 Connecting Cables
Step 1 and
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