Huawei ECC500 User Manual page 34

ECC500
User Manual
The Independent Deployment AI/DI Unit is configured with a 4-bit DIP switch. Set toggle
switches 1 to 3 to configure the address of the Independent Deployment AI/DI Unit, and set
toggle switch 4 to enable or disable the resistance for the RS485 port.
mapping between the Independent Deployment AI/DI Unit address and the DIP switch
settings.
Table 3-12 Mapping between the Independent Deployment AI/DI Unit address and the DIP
switch settings
Address
1
2
Issue 04 (2019-12-20)
SW1
OFF
ON
If the signal quality is poor due to signal reflection caused by long communications cables (longer than
50 m), set toggle switch 4 to ON for the furthest independent deployment AI_DI unit. After the DIP
switch settings are modified, power off and restart the independent deployment AI_DI unit for the new
settings to take effect.
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3 Configurations and Port
Table 3-12
SW2
ON
OFF
describes the
SW3
ON
ON
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