Powering The Chassis Up Or Down - Cisco Carrier Routing System CRS-1 Installation Manual

About Installing and Removing the Power Components
Figure 2-6

Powering the Chassis Up or Down

The chassis does not have a single enable switch that powers the entire chassis and all its components
up and down. (These switches are called enable switches because they enable the power supplies to
produce output voltage and power). Most components on the chassis, such as the power supplies, MSCs,
FPs, PLIMs, and fan trays can be removed or installed in the chassis while it is running.
Before you can power the chassis up, you must complete the following tasks:
Install the appropriate power shelf for your system (see the
Step 1
page 2-14
Install the power supplies (see the
Step 2
Install the route processor (RP) card (see the
Step 3
Install the input power cables to the input power connectors on the rear of the chassis, and the other end
Step 4
(plug side) to the AC or DC power source.
Activate your power source.
Step 5
Turn the two power shelf enable switches on the rear (SFC) side of the power shelf (see
Step 6
the ON position.
The two enable switches on the rear (SFC) side of the AC power shelf
Note
standby mode; in other words, they only power down the -54VDC output from the power supplies.
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
2-6
CAB-CRS4AC-US and Japan
Plug: NEMA L6-20
or the "Installing an AC Power Shelf" section on page
Chapter 2
Cordset rating: 20 A, 250 V
Length: 14 ft 0 in. (4.26 m)
Connector: IEC 60320 C19
"Installing a DC Power Shelf" section on
"Installing a Power Supply" section on page
"Installing an RP or PRP Card" section on page
Installing and Removing Power Components
2-24).
2-28).
Figure
(Figure 2-7) put the chassis in
4-26).
2-7) to
OL-10971-10