Powering On The System - Sun Microsystems Sun Fire E25K Service Manual

16.2.7.2 Installing the TopCap Cable
1. Place the new TopCap cable on top of the system.
2. Install the external right-angle connector (P/J11) at the end of the cable to the
chassis side panel.
3. Secure the right-angle connector with the two (2) female jack screws using a
3/16-inch nut driver.
4. Secure the two (2) jackscrews that hold the internal TopCap cable to the bulkhead
on the internal chassis side panel.
5. Install the honeycomb EMI Filter panel and air plenum cover and secure with the
twenty-two (22) Mx30 panhead screws at the rear of the system.
6. Secure the four (4) cable clamps with the four (4) M4x12 panhead screws to mount
the TopCap cable to the chassis.
7. Install the external side panel by placing the panel on the turn-screw and setting
the panel into its proper position.
8. Connect the 12V power cable to the connector on the rear of the TopCap.
9. Secure the TopCap to the chassis with three (3) M4x12 panhead screws.
10. Power on the system.
See Section 16.3, "Powering On the System" on page
16.3

Powering On the System

1. Connect the AC power cords to the 4 kW dual
2. Connect all I/O cables referencing the cable label for proper identification.
3. Power on the AC0 and AC1 circuit breakers for all power supplies in the system.
4. Close the Sun Fire E25K/E20K system cabinet access doors.
5. Once the main SC is booted, start the domain(s) by typing:
sc% setkeyswitch -d domain_id
where domain_id is the domain letter A-R.
6. Execute one setkeyswitch command for each domain to be started.
16-20 Sun Fire E25K/E20K Systems Service Manual • April 2004
16-20.
power supplies.
AC–DC
on