Cisco uBR10-LCP2-MC16E Guida di Installazione Scaricare il pdf (Pagina 18)

Connecting –48/–60 VDC Power to the Cisco uBR10012 Router

The DC power sources can be present at the site, or they can be provided by the optional 2400W AC-input power shelf. If you

are using the 2400W AC-input power shelf, be certain you have already installed it, as described in the 2400W AC-Input Power

Shelf Installation Guide.

Note For full power redundancy, each terminal block must be connected to a separate power source. If you are using the

optional 2400W AC-input power shelf, full power redundancy requires that each of the AC power supplies in the shelf

be connected to AC power sources that are on separate circuit breakers.

Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure

that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit

breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.

Statement 7

Equipment

• Wire stripper

• DC power leads (4)

Step 1 Verify that the DC power source to the chassis is turned off (tape it in the OFF position, if possible).

Caution Do not connect power to the DC power sources or apply power to the chassis. This is done as part of the system

startup after all connections are made.

If you are using the 2400-W AC-input power shelf as the DC power source, verify that the AC-input power cords

are not plugged into AC power outlets.

Step 2 Strip no more than 5/16 in. (8 mm) of insulation off the ends of the DC power leads.

Step 3 Route the two sets of DC power leads through the square hole at the right front of the chassis. See Figure 13.

Step 4 Connect the DC power lead from the first external power source to the –48 V terminal in the DC terminal block, and

the return wire (RTN) to the top terminal in the terminal block.

Step 5 Repeat Step 4 to connect the second DC power source.

Figure 13 Connecting the DC Power Cables in the Chassis

98748

RTN (+)

–48/–60

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 45 46

Nessun commento

Cisco uBR10-LCP2-MC16E Guida di Installazione Pagina 18