132
Checking the Installation
Check whether a fixed optical attenuator was added before powering on the subrack. Refer to configuration
rules for attenuators prior to proceeding.
Turn off the switch to the power supply, and then use an ohmmeter to measure the resistance between NEG (-),
RTN(+) and PGND.
Switch
Between NEG(-) and
RTN(+)
Between NEG(-) and
PGND
Between RTN(+) and
PGND
Turn all the power switches on the
power distribution box to OFF
∞
∞
0
Turn all the power switches on the
power distribution box to ON
>1k Ohms
>1k Ohms
0
Turn off all power switches on the power distribution box after the test.
No.
What to Check For
Method
1
The cabinet is positioned in the proper place as prescribed by the engineering
design.
Visual inspection
2
The cabinet components must be installed correctly, without damaged or loosen
parts. There should be no fingerprints, scratch marks or other stains on the cabinet.
Visual inspection
3
Cable apertures at the top and the bottom of the cabinet are securely sealed.
Visual inspection
4
Cables are routed according to the engineering design.
Visual inspection
5
Cables are not damaged or broken, and there are not any joints on the cable. The
cable connectors are connected correctly and securely.
Visual inspection
6
Cables are laid horizontally or vertically without crossing, and there is moderate
bundling at the bending radius of the fiber patch cords. Labels at both ends of the
cable and fiber are marked correctly, clearly, and neatly.
Visual inspection
7
The fibers routed outside the cabinet are protected in a corrugated pipe, and are
protected from being pulled out by other cables or objects.
Visual inspection
8
The bending radius of the fiber patch cords is not less than 30 mm. There are not
any sharp components along the routing path for the fibers.
Visual inspection
9
Fibers are placed in order and are properly bound with optical binders. There are
not any sharp edges.
Visual inspection
10
All vacant slots must be covered by filler panels. The air intake vent and air exhaust
vent of the subrack must not be blocked.
Visual inspection
Double check that these items have been properly performed.
CAUTION
CAUTION
Powering on the Cabinet
a
1
Installation Checklist
2
Checking the Equipment Prior to Powering on
