Cisco UBR7246VXR Hardware Installation - 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

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

switch

receptacle

– 48V lead

+ 48V lead

Strain-relief

cover

M4 nuts