Figure 14 DC Power Connections

RTN

(+)

 

 

48/–60

V

 

DC terminal block A

RTN (+)

48/–60 V

DC terminal

block B

30024

Step 4 Connect the DC power lead from the first external power source to the DC terminal block A labeled –48V. Step 5 Connect the return wire (RTN) to terminal block A labeled RTN (+).

If you have redundant DC power, continue with Step 6.

If you do not have redundant DC power, go to Step 8.

Step 6 Connect the DC power lead from the second external power source to the DC terminal block B labeled –48V. Step 7 Connect the return wire (RTN) to terminal block B labeled RTN (+).

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Cisco Systems 10008 quick start DC Power Connections