Installation Manual
3. Router Installation 31
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If there is no appropriate grounding point on the cabinet, we also can
connect the grounding cable of the router to other grounding bar of the
installation place.
Fire hose and lightning rod grounding of the building are not the proper
grounding location; the grounding cable of the router should be connected
to the engineering grounding of the equipment room.
3.3. (Optional) Install SPD
1.3.3. Install AC Power SPD
The AC power SPD (surge protection device) suppresses the transient overvoltage caused by
lightning inductance shock or other reasons on the power transmission line. When a SPD is
used, the AC power first enters the SPD and then enters the router.
Figure 3-5 The power SPD
Connects the router power.
2.Normal work indicator
(green)
on: indicates that the circuit is running normally.
Off: indicates that the protection circuit is
damaged.
3.Grounding and polarity
detection indicator (red)
on: indicates the wiring error (the PE is not
connected or the live wire and naught wire are
reversely connected). At this time, check the
power supply circuit.
Turn on or turn off the power.
5.Automatic overload
protector
If the overload occurs, the power is cut off. When
the overload comes to recovery, the power resets
automatically.
Connects to the power in the equipment room via
the power cable.
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