Huawei SmartAX MA5600T Hardware Description page 974

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
Table 6-38 LEDs on the front panel of the SPD28SZ surge protector.
LED
Working LED
Failure LED
NOTE
Electrical Connection
Figure 6-37
Figure 6-37 Electrical connections of the SPD28SZ surge protector
Specifications
Table 6-39
Issue 24 (2018-07-30)
Status Description
Green
Red
OFF
Red
When the mains over-voltage protection circuit is started for the surge protector, the surge protection
function of the surge protector still works and the green working LED is still on. When the failure LED
is red, replace the surge protector in time.
shows the electrical connections of the SPD28SZ surge protector.
lists the specifications of the SPD28SZ surge protector.
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6 Electromechanical Device
The surge protector works in the normal
state.
The surge protector is faulty.
The surge protector works in the normal
state.
The surge protector is faulty.
Nout Lout Nin Lin
PE
Grounding
bar
SPD
Alarm
SPD
Input terminal
Output terminal
954