Powering Up And Down A Chassis With Fixed Configuration Ac Power - Cisco SRS Series Installation Manual

Powering Up and Down a Chassis with Fixed Configuration AC Power

SUMMARY STEPS
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.
2. Use the screwdriver to loosen the captive screw that fastens the alarm module to the front (PLIM) side of
the chassis.
3. Grasp the alarm module and pull it halfway from the bay.
4. Use your free hand to support the alarm module while you slide the alarm module completely from the
bay, then set it carefully aside.
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
Use the screwdriver to loosen the captive screw that fastens the alarm module to the front (PLIM) side of the chassis.
Step 3 Grasp the alarm module and pull it halfway from the bay.
The alarm module weighs about 4.2 lb (2 kg). Because of the weight of the alarm module and the elevated
Caution
position of the power shelf, you should use two hands when handling the alarm module. It is safer to use a
ladder to install or remove the alarm module.
Step 4 Use your free hand to support the alarm module while you slide the alarm module completely from the bay, then set it
carefully aside.
What to do next
After performing this task, install a replacement alarm module (if necessary) and replace the upper grille on
the front (PLIM) side of the chassis.
Powering Up and Down a Chassis with Fixed Configuration AC Power
This section describes how to power up and power down an LCC with fixed configuration AC power shelves
installed. For details on the fixed configuration chassis AC power system, see
Each power shelf in the LCC has its own I/O switch for shelf power cutoff. Power shelf linkage cuts power
to the chassis as a whole when both power shelves are turned off. Most components on the chassis, such as
the power shelves, PEMs, alarm modules, and fan trays, can be removed or installed in the chassis while it is
running. Although it is possible to install or remove a power shelf while the chassis is running, it is
recommended to remove power from the chassis completely, if possible, for service protection and safety.
Note
Although the chassis can be powered on by switching on the power shelf I/O switch (if all individual power
rectifier I/O switches are in the ON position), this method draws a large power surge on start-up. We recommend
following the procedure outlined below to power the chassis on and off.
This figure shows the front (PLIM) side of the LCC with fixed configuration power installed.
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
48
Installing and Removing Power Components
AC Power Systems.