Nortel Passport 7400, Hardware Installation, Maintenance, And Troubleshooting, Page: 275 / 438

Chapter 37 Hardware procedures 275
Passport 7400 Hardware Installation, Maintenance, and Upgrade 5.2S1
Installing dc power cables on a multiport aggregate device
Install dc power cables on a multiport aggregate device after you have
mounted the device to the rack or cabinet.
Procedure steps
1 Connect the dc power cable for each power supply to the output terminals
of the disconnect device.
2 Route the dc power cables into the cabinet or rack through the knockout.
3 Attach the terminal connector to the ends of the wires. Each cable
contains three wires: a positive, a negative, and a ground. Each connector
has three openings: a positive, a negative and a ground. Insert each wire
into the opening that it matches and secure it in place by tightening the
screw on the top of the connector. See the figure “Connecting power wires
to the terminal connector” (page 276).
4 Connect the terminal connectors to the terminal block for one of the power
supplies (on the rear of the unit); connect the second cable to the other
terminal block. Push the connector into the terminal block until it clicks
and feels secure. See the figure “Connecting the terminal connector”
(page 277).
5 Connect the power cables from the disconnect device to the power
source.