DC power cables
Figure 4-45 DC power cables
(1) Naked crimping terminal, OT, 6mm^2, M4, tin plating, naked ring terminal, 12 to 10 AWG
(2) Heat shrink tube
(3) Label 1 (+)
(4) Power cable, 600V, UL10455, 5.3 mm^2, 10AWG, black, 45 A
(5) Main label
(6) Heat shrink tube
(7) Power cable, 600 V, UL10455, 5.3 mm^2, 10AWG, blue, 45 A
(8) Label 2 (–)
(9) Common terminal, conductor cross section, 6mm^2, 20mm, 30 A, insertion depth 12 mm, black
Formula for calculating the cross section area of a DC power cable:
S=2*I*L/(57*∆U)
Where,
I: Current in amperes.
L: Length of the power cable in meters.
∆V: Voltage drop on the power cable from the power distribution frame (PDF) to the router,
usually, 3.2 V.
S: Cross section area of the power cable, in square millimeters.
Connection procedure
Follow these steps to connect the DC power cables:
Step1 Move the power switch on the DC power module to the OFF position.
Step2 Unscrew the DC input terminals with a Phillips screwdriver.
Step3 Connect the end marked with “– “ of the supplied blue DC power cable to the negative terminal
(–) on the power module and fasten the screw.
Step4 Connect the end marked with “+“ of the supplied black DC power cable to the positive terminal
(+) on the power module and fasten the screw.
Step5 Connect the other end of the DC power cables to the wiring terminals of the DC power supply.
Step6 Move the power switch to the ON position.
Step7 Check the status of the PWR LED on the front router panel. For the status of the power LED,
see Table 4-5.
When connecting DC power cables, pay attention to the labels on the power cable to avoid
incorrect connection.
Installing and Removing a Blank Panel
Blank Panel Structure
Installed in empty slots on the device, blank panels can prevent dust from entering the router
chassis.
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