Maipu MP1800X-40, Installation Manual

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Appendix
MP1800X Series Router Installation Manual
D-6
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
2017Maipu, all rights reserved
D1.4 Anti-interference requirements
There may be certain interference sources during the working of the router. The router
is influenced by capacitive coupling, inductance coupling, electromagnetic wave
radiation, common impedance (including grounding system) coupling and conducting
wires (including power cable, signal cable and output cable, etc.), etc., either from
outside of the application system or from inside of the router. Therefore, please note
that:
Caution:

Effective measures against electricity network interference shall be taken for the
power supply system.

The working ground for the router shall be better not to be shared by the electrical
equipment’s grounding device or lightning-proof grounding device, and shall be kept
away from them as far as possible.

The router shall be kept away from high-power radio transmitting station, radar
station and high-frequency high-current equipment. Users can conduct
anti-interference through electromagnetic shielding method, if necessary.
D1.5 Grounding requirements
A good grounding system is the basis for the stable and reliable operation of the router,
and the important guarantee for the router to be lightning resistant, interference
resistant and antistatic. Users shall provide a good grounding system for the router,
with the resistance between the router chassis
and ground required to be less than 1Ω.
D2 Requirements for power supply condition
D2.1 Requirements for fundamental AC power supply
Caution:

The low-voltage power supply system shall use the three-phase five-wire or
single-phase three-wire, with the low-voltage AC nominal voltage of 110V/220V and
frequency of 50Hz/60Hz.

Uninterruptible power supply (UPS) shall be used as the AC back-up power. The
AC back-up power shall be kept the same phase with the mains supply, with the
switching time of both required to be less than 10ms, otherwise, the equipment may