Huawei SmartLogger2000 Quick Manual page 11

3. Mount the SmartLogger onto the guide rail.
4
Installing the RS485 SPD
NOTE
1. The SmartLogger provides six COM ports. To connect a COM port on the SmartLogger to a
COM port on an outdoor device, you are recommended to connect an RS485 signal SPD to
strengthen the surge protection capability.
2. Each RS485 signal SPD can connect to two COM ports. Each SmartLogger can be configured
with a maximum of three RS485 signal SPDs.
3. When the RS485 signal SPD is to be installed in a non-smart array controller, you are
recommended to install it on a guide rail.
4. If the SmartLogger is installed on a guide rail, the RS485 SPD can share the guide rail with the
SmartLogger. In this case, the recommended guide rail length is 600 mm or greater.
5. Secure the guide rail before mounting the RS485 SPD.
5
Installing Ground Cable
Installing the SmartLogger Ground Cable
5.1
4. Install the guide rails fastener using M4x12
screws, and tighten the screws to a torque
wrench of 1.2 N· m.
10