4
Checking Hardware Installation
Check the power cable and PGND cable installation.
a
No.
Check List
1
–48 V power cables are blue, RTN power cables are black, and PGND cables are green and yellow.
They can also be designed according to the customers' requirements.
2
The PGND cables and the power cables must be in good condition without any joints.
3
All power cables and PGND cables are properly connected.
4
The bare wires and OT terminals at the wiring terminals are tightly wrapped with PVC insulation tapes
or heat shrink tubing.
5
Power cable engineering labels are attached at both ends of the power cables and PGND cables.
5
Check the signal cable installation.
b
No.
Check List
1
All the signal cables have passed the continuity check before they are routed.
2
The signal cables are connected correctly and the connectors are installed securely.
3
The cabling route complies with the engineering design. Signal cables are bound separately from power cables.
4
The signal cables are not placed on the heat dissipation section of the cabinet.
5
Sufficient slack is provided in cables for strain relief.
6
Cables should be straight and smooth. Cables in the cabinet are not crossed and cables outside the cabinet are
bundled.
7
Surplus cables are reserved, and the tie wraps are tied properly and trimmed so that there are no sharp edges.
8
The signal cables are bound in proper positions and cable ties are bound with proper spacing.
9
Both ends of each cable are labeled clearly, and the labels and cable ties face the same direction. It is
recommended that a label be affixed 20 mm away from the connector.
Check the connector and socket installation.
c
No.
Check List
1
Cable plug latches are locked firmly.
2
The pins of the network cable sockets and the HEADER sockets are complete and straight.
3
Spare connectors are covered with protective caps.
Conducting a Power-On Check
Check the DC power supply to the subrack.
a
a1. Subrack check before power-on
1. The subrack power cable is properly connected.
2. The PEM is not short-circuited.
3. The boards in the subrack are correctly installed.
4. The PEM circuit breaker of the subrack is
switched off.
The blue DC power cable connects to the NEG(-) wiring
terminal of the PDB and the NEG(-) wiring terminal of
the PEM in the subrack. The black DC power cable
connects to the RTN(+) wiring terminal of the PDB and
the RTN(+) wiring terminal of the PEM in the subrack.
Note
