DC power cords
Figure 4-45
DC power cords
(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 cord, 600V, UL10455, 5.3 mm^2, 10AWG, black, 45 A
(5) Main label
(6) Heat shrink tube
(7) Power cord, 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 cord:
S=2*I*L/(57*∆U)
Where,
I: Current in amperes.
L: Length of the power cord in meters.
∆V: Voltage drop on the power cord from the power distribution frame (PDF) to the router,
usually, 3.2 V.
S: Cross section area of the power cord, in square millimeters.
Connection procedure
Follow these steps to connect the DC power cords:
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 cord to the negative terminal
(–) on the power module and fasten the screw.
Step4
Connect the end marked with “+“ of the supplied black DC power cord to the positive terminal
(+) on the power module and fasten the screw.
Step5
Connect the other end of the DC power cords 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 cords, pay attention to the labels on the power cord 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.
