The color coding of the –48 VDC input power supply leads depends on the color coding of the –48 VDC
power source at your site. Typically, green or green/yellow is used for ground. Ensure the lead color
coding you choose for the –48 VDC input power supply matches the LED color coding used at the –48
VDC power source.
Note
When you install the unit, the ground connection must always be made first and disconnected last. Statement
1046
Danger
This section describes how to connect the –48 VDC power supply in the Cisco ASR 1002-X Router:
SUMMARY STEPS
1.
At the rear of the router, check that the power supply Standby switch is in the Standby (see Figure 167:
Cisco ASR 1002-X Router –48 VDC Power Supply Terminal Block Cable Connections, on page 357 )
position.
2.
Ensure that the negative and positive leads are disconnected from the site power source.
3.
Using a wire stripper, strip approximately 0.55 inch (1.39 cm) from the negative, positive, and ground
lead.
4.
Insert the stripped end of the ground lead all the way into the ground lead receptacle on the –48 VDC
input power supply, and tighten the receptacle screw using a 3.5 mm flat-blade screwdriver to a torque of
0.5 to 0.6 Nm.
5.
Insert the stripped end of the positive lead all the way into the positive lead receptacle and tighten the
receptacle screw using the same 3.5mm flat-blade screwdriver.
6.
Repeat this step for the negative lead.
7.
After tightening the receptacle screw for the ground, positive, and negative –48 VDC-input leads, use a
cable tie to secure the three leads to the power supply faceplate, as shown in Figure 167: Cisco ASR
1002-X Router –48 VDC Power Supply Terminal Block Cable Connections, on page 357. When securing
the ground, positive, and negative –48 VDC-input leads to the power supply faceplate, leave a small service
loop in the ground lead to ensure that the ground lead is the last lead to disconnect from the power supply
if a great deal of strain is placed on all three leads, as shown in Figure 167: Cisco ASR 1002-X Router
–48 VDC Power Supply Terminal Block Cable Connections, on page 357.
8.
Connect the ground, positive, and negative leads to the power source.
9.
Turn the branch source breaker on.
10.
Place the –48 VDC Standby switch in the On (|) position. The power supply LEDs light when power is
supplied to the router.
Cisco ASR 1000 Series Router Hardware Installation Guide
356
Cisco ASR 1002-X Router Overview and Installation
Connecting the –48 VDC Input Power to the Cisco ASR 1002-X Router
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