Cisco UBR7246VXR Installation du matériel - Page 17
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Warning
The illustration shows the DC power supply terminal block. Wire the DC power supply using the appropriate wire
terminations at the wiring end, as illustrated. The proper wiring sequence is ground to ground, positive to positive
(line to L), and negative to negative (neutral to N). Note that the ground wire should always be connected first and
disconnected last. Statement 61
Figure 12
Replacing the Strain-Relief Cover on a DC-Input Power Supply
Captive
installation screw
(on both sides of
power supply)
M5 grounding receptacles
M5 grounding lug
Tip
Figure 12 shows the grounding lug connected to the two vertically aligned M5 grounding receptacles. You may also
connect the grounding lug to the two horizontally aligned M5 receptacles.
Cabling
For information about cabling, refer to the field-replaceable unit (FRU) documents at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
6
Powering on the Cisco uBR7246VXR Router
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards,
faceplates, front covers, and rear covers are in place. Statement 1029
After installing your Cisco uBR7246VXR universal broadband router and connecting cables, power on the router as follows:
Step 1
Check for the following:
a. Every module is securely inserted in the right slot and the captive installation screws are tightened.
b. All network interface line cables are connected to the port adapters.
c. Hybrid fiber-coaxial (HFC) network coaxial cable is connected to the cable interface cards.
d. Primary and secondary DB-15 T1 interface cables are attached to the clock card.
e. Each port adapter is inserted in its slot and the port adapter lever or retention clip is in the locked position.
Power
Power
switch
receptacle
– 48V lead
+ 48V lead
Strain-relief
cover
M4 nuts
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