Cisco SRS Series Installation Manual page 71

Installing and Removing Power Components
DETAILED STEPS
Step 1
Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the
front (PLIM) side of the chassis or a bare metal surface on the chassis.
Step 2
Make sure that the safety ground wiring is connected.
Step 3 Make sure that the facility power breakers for the upper (PS0) and lower (PS1) power shelves are in the OFF position.
Step 4
Make sure that all the I/0 switches are in an OFF position. That is, make sure all I/O levers are pulled out. There are
total of six power levers for the six AC power rectifiers and two power levers for the two AC power shelves.
Step 5
Make sure all boards (RPs, PLIMs, SFCs, and FPs) are pulled-out and disconnected from the backplane.
Step 6 Remove the cover plate from the rear of each fixed configuration AC power shelf.
Step 7 Plug in AC power cords for the upper (PS0) and lower (PS1) power shelf.
Step 8
For AC Delta and AC Wye, verify the following resistance values, as shown in
on page 34 and
• From L1 to GND should be greater than 1 MOhms
• From L2 to GND should be greater than 1 MOhms
• From L3 to GND should be greater than 1 MOhms
For AC Wye only, verify the following resistance values:
• From L1 to L4 (Neutral) should be greater than 1 MOhms
• From L2 to L4 (Neutral) should be greater than 1 MOhms
• From L3 to L4 (Neutral) should be greater than 1 MOhms
Step 9 Make sure that each input power cable one is connected, and energize the facility breaker to each input.
Step 10
Measure the voltage between the following, for the upper (PS0) and lower (PS1) power shelf:
• Between L1 and L2 (AC Delta only)
• Between L2 and L3 (AC Delta only)
• Between L3 and L1 (AC Delta only)
• Between L1 and L4 (AC Wye only)
• Between L2 and L4 (AC Wye only)
• Between L3 and L4 (AC Wye only)
Verify that the AC voltage is between 200 and 240 VAC. Make a note of this voltage measurement.
Step 11 Turn the facility breaker for the upper (PS0) and lower (PS1) power shelf to the OFF position.
Step 12
Turn the facility breaker for the upper (PS0) and lower power shelf (PS1) to the ON position.
Step 13 Turn the power shelf I/O switches on both power shelves (PS0 and PS1) to the ON position. Verify that the "CBREAKER
TRIP" LED on the front panel of each power rectifier is yellow and that no other LEDs are active.
Step 14 Turn the first power rectifier (A0) I/O switch on the upper power shelf (PS0) to the ON position. Verify that the "PWR
OK" LED on the power rectifier front panel is green and that no other LEDs are active. Repeat for the other two rectifiers
(A1 and A2).
Step 15 Turn the first power rectifier (B0) I/O switch on the lower power shelf (PS1) to the ON position. Verify that the "Power
OK" LED on the power rectifier front panel is green and that no other LEDs are active. Repeat for the other two rectifiers
(B1 and B2).
Figure 21: AC Delta Power Shelf Rear), for the upper (PS0) and lower (PS1) power shelf:
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
Figure 20: AC Wye Power Shelf Rear,
Steps
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