Network Card User Manual

Connecting Cables to the Dial Shelf

Cisco AS5800 Universal Access Server Hardware Installation Guide3-18

Figure 3-13 Connecting the DC-Interconnect Cables

Step 4

Fit the exposed wire end of the black insulated cable into the DC terminal block labeled

–48V on each PEM and securely tighten the terminal block connector screws. Repeat for

the other PEM. (See Figure 3-13)

Note You must attach the red DC cables to the stud labeled BUS + on the AC-input power shelf and

connect the other end to a –48V RTN terminal on each PEM. You must attach the black DC cables

to the stud labeled BUS – and connect the other end to a –48V terminal on each PEM. If the two DC

conductors entering the PEM terminal block are reversed, a yellow warning LED on the PEM lights

to indicate a miswire. No damage will occur; however, you must power OFF the power at the source

and reverse the connections.

This completes the DC power cabling installation. You must now connect the monitor cable from the

AC-input power shelf to the dial shelf filter module.

Connecting the Monitor Cable

For detailed cabling specification information, refer to Appendix A, “Cisco AS5800 Specifications.”

To connect the monitor cable, complete the following steps:

Step 1 Attach the monitor cable DB-9 plug to the DB-9 receptacle at the base of the dial shelf

filter module. (See Figure 3-14, or Figure 3-14 for an enhanced power shelf.)

Step 2 Tighten the jackscrews.

Hex nut

Red

Black

Ground

–

V –

H11158

–48V

RTN

DC terminal block

PEM

BUS

—

terminal

stud

BUS

terminal

stud

Red

Black

Monitor

cable