MP1900X Series Router Installation Manual
Appendix
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2019 Maipu, all rights reserved
C-7
than 10 ms. Otherwise, the router may restart or reset.
The AC capacity of the equipment room should consider the work current and faulty
current of the router. Ensure that the independent router has the independent AC
power distribution protection device. The configuration protection switch should be
larger than the protection switch of the post powered device.
The power input range of the router using the AC power is as shown in the following
table.
Appendix Table C-5 AC power supply requirement
Item
Index
Input voltage range
100–240V
Input frequency range
50–60Hz
AC wire should adopt the flame-retardant wire. The wire layout should be done
according to
Code for fire protection design of tall buildings GB50045-95
. The
low-voltage distribution is done according to
Specifications for the design of
low-voltage electric power distribution systems GB50045-95
.
C2.2 Suggestions on fundamental AC power supply
Suggestions on fundamental AC power supply include:
If the router is directly powered by mains supply, and its power supply voltage
exceeds -10%~5% of the rated voltage, or the voltage range allowed for the router,
a voltage regulation device shall be used to meet the requirements.
In case the communication load requires uninterruptible or transient-free AC, the
UPS or inverter power supply system shall be used.
In the case of abnormity of the mains supply, the telecommunication bureau
(station) shall equip self-provided electric generator set as self-contained power
supply, to guarantee important communication load and important power load. The
capacity thereof shall be checked to be not less than 1.5-2 times the total capacity
of the AC incessant consumers.
