MP1900X Series Router Installation Manual
Router Installation
copyright
2019 Maipu, all rights reserved
3-11
Figure 3-5 The power SPD
1.Socket
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.
4.Power switch
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.
6.Standard socket
Connects to the power in the equipment room via the
power cable.
The power SPD is not provided with the router. The user can purchase it as
required.
When using the power SPD, ensure the PE terminal is grounded.
Insert the AC power plug of the router into the socket of the power SPD (surge
protection connector bar). When only the green indicator indicating the running
power SPD is always on without red indicator alarms, the SPD function works.
If the red alarms occur to the power SPD, check and ensure whether the live wire,
naught wire, and PE are connected correctly. If the PE is connected correctly,
perform further detection. Switching the multimeter to the AC power, test whether
the voltage between the naught wire and the PE is less than 5 V and whether the
voltage between the live wire and the PE is about 220V. If no, it indicates that the
live wire and the naught wire are reversely connected.
3.3.2
(Optional) Install Port Lightning Protector
When using the router, if an outdoor network cable will be connected to the router, first
cascade the port lightning protector before connecting the signal line to the router
interface to reduce the probability of router damage caused by lightning stroke.
The port lightning protector is installed as follows:
