NetNumen™ U31 R06 Hardware Installation Guide
l
The power distribution switch is set to OFF.
l
A cross head screwdriver, a wrench, a multimeter, and a ladder are ready.
Steps
1.
Determine how to route the power cables and the grounding cable.
For the principles of the top and bottom routing principles, refer to
.
2.
Determine the connection terminals used at both ends of cables and the accurate
length of each cable.
3.
Make power cables and a grounding cable for the cabinet. For more details, refer to
Appendix A Making a Power Cable and a Grounding Cable
4.
Install the power cables and the grounding cable at the cabinet side, see
and
5.
Install the power cables and the grounding cable at the
power distribution box.
a.
Connect the yellow-green grounding cable to the "PE" connection terminal of the
power distribution box.
b.
Connect the blue power cable to the –48 V/–60 V connection terminal of the
power distribution box.
c.
Connect the black
power cable to the RTN connection terminal of the
power distribution box.
6.
Use the multimeter to measure the resistance between the –48 V/–60 V input terminal
and the RTN input terminal of the unified
Note:
If the multimeter does not give out any sound, no short circuit exists.
– End of Steps –
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SJ-20141121113158-006|2014-12-20 (R1.0)
ZTE Proprietary and Confidential