Installing Power Cables - Huawei OptiXRTN 950 V100 Quick Installation Manual

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Installing Power Cables

1
1
Insert the power cables into the DC connector
based on the pin assignment. You do not need to
prepare the power cables on site if they were
prepared before delivery.
CAUTION
After fastening a cable, check whether the cable core is exposed outside the power cable connector
terminal. If the cable core is exposed, re-route the cable into the power cable connector. If the cable core
is still exposed after you re-route the cable, peel the cable again.
If the AC power box (ETP 4830) is used, the IDU needs to use the BGND power cable and -48 V power cable that are
delivered with the AC power box. For details on the AC power box and its cables, see the IDU hardware description.
Check the fuse current of the external
power supply.
Recommended Current Value of the
External Fuse
NOTE
The recommended fuse capacity of 20 A can meet requirements under the maximum power consumption. Customers
can compute the fuse capacity according to the actual power consumption. The fuse capacity should be greater than or
equal to (total power consumption x 1.5)/(rated voltage x 87.5%). For example, when the rated power supply is -48 V and
the total power consumption of the IDU is less than or equal to 420 W, the fuse capacity can be set to 15 A.
20 A
RTN(+)
1 2 3 4
OUTPUT
ON
OFF
32A 32A 20A 20A
Check the voltage and polarity of the external power
supply.
Rated Voltage of the Input
Power
–48 V ( DC )
–60 V ( DC )
WARNING
The IDU does not support AC power. Do not connect the IDU to
an AC power supply. Otherwise, equipment may be damaged
and you may be injured.
NEG(-)
A
B
ON
RTN1(+) RTN2(+) NEG1(-) NEG2(-)
OFF
INPUT
32A
19
Allowable Voltage Range
–38.4 V to –57.6 V ( DC )
–48 V to –72 V ( DC )
1 2 3 4
OUTPUT
32A 20A
20A