Post-Installation Checks

1

The installation position of the cabinet meets the requirement in the associated engineering design document.

Observe

2

Components are correctly installed in the cabinet. No components are loose or damaged.

Observe

3

All the screws are correctly secured. The chassis bottom is completely attached to the guide rails or tray.

Observe

4

The vertical deviation of the cabinet is less than 3 mm. You can use a plumb line to measure the vertical deviation.

Measure

5

The cabinets on the sides of the main path are aligned, with a deviation of less than 5 mm.

Measure

6

The surfaces of the cabinets in the same row are on the same plane. The cabinets are deployed close to each other.

Observe

7

The front door of a cabinet can be opened and closed easily.

Observe

8

The cable outlets on the top and bottom of the cabinet are sealed.

Observe

9

All the signal cables have passed a continuity check.

Observe and measure

10

Routes of signal cables comply with the engineering design document.

Observe

11

The signal cables are not placed on the air vent of the cabinet.

Observe

12

Signal cables are not damaged or broken and have no splices.

Observe

13

Signal cable connectors are clean and intact, and correctly connected. Wires of each signal cable are securely crimped in the connectors.

Observe

14

Signal cables do not cross each other and have sufficient slack at the bent part. (Signal cables can be crossed within 1 m outside the cabinet.)

Observe

15

Each signal cable has correct, clear, and tidy labels attached on both ends.

Observe

16

Pigtail fibers outside a cabinet are laid in a protection pipe or trough and are not squeezed by other cables or objects.

Observe

17

Optical fibers are led into a cabinet through a corrugated pipe. The corrugated pipe in the cabinet should be not more than 100 mm long and be bundled onto the cabinet.

Observe and measure

18

The bend radius of optical fibers is 20 times larger than their diameter. Generally, the bend radius should be no less than 40 mm. The path of optical fibers is not blocked by any components.

Observe and measure

19

Each pair of fibers is bundled by binding tape with appropriate force.

Observe

20

The routes of power cables and ground cables conform to the engineering design document, facilitating future maintenance and system expansion.

Observe

21

All power cables and ground cables are complete copper wires without splices. Coatings of power cables and ground cables are intact.

Observe

22

Power cables and ground cables are connected properly. The spring washer of each ground terminal is placed on the flat washer.

Observe

23

Diameters of power cables and ground cables conform to the associated engineering design document, meeting the power distribution requirements.

Observe

24

Power cables and ground cables are separated from signal cables.

Observe

25

Power cables and ground cables are routed straightly and properly bundled, with sufficient slack at the bend part.

Observe

26

The redundant part of the power cables and ground cables is cut off.

Observe

27

Power cables, ground cables, and power switches on power distribution boxes and power distribution frames are identified by correct, legible labels.

Observe

28

The lugs of the power cables and ground cables are soldered or crimped tightly.

Observe

29

Metal components in a cabinet have good electrical connections with the rack. Screw mounting holes, guide rails, and mounting brackets are not covered with insulation painting.

Observe

30

Ground busbars of adjacent cabinets are connected through busbar cables.

Observe

31

The yellow-green ground cables are correctly connected. One end of a ground cable is connected to the PGND ground bar in the power distribution cabinet, and the other end is connected to the ground point on the cabinet. Screws at both ends of the ground cable are securely fastened.

Observe

32

The removable handles are hanging at the rear of the chassis.

Observe

33

The new switch will not cause loops on the current network. For example, this switch cannot be connected to another device using two links.

Check against the networking diagram