Cisco Systems OL-6256-17 manual LED Name Color Function or Meaning

Chapter 2 Installing and Removing Power Components

How to Install or Remove Modular Configuration Power Components

Table 2-1shows the LED status indicator lights for the AC and DC PMs in a modular configuration power supply.

Table 2-1	PM LED Status Indicator Lights—Modular Configuration Power
LED Name		Color	Function or Meaning
Input_OK		Green	On: The input voltage is present and within regulation range.
			Blinking: The input voltage is present but out of regulation range.
			Off: The input voltage is not present.
Output_OK		Green	On: The output voltage is on.
			Blinking: The PM is in a power limit or an OC condition.
			Off: The output voltage is off.
Fault		Red	On: An internal fault is detected within the PM.
			Off: The PM has no internal fault.

Converting from One Modular Configuration Power System to Another

To convert a Cisco CRS 8-slot line card chassis with a modular configuration power system from AC to DC power, or from DC to AC power, perform the following steps:

Step 1 Power down the chassis completely.

Step 2 Remove the AC or DC PMs from the power shelves. See the “Removing AC or DC PMs” section on page 2-42,

Step 3 Remove the AC or DC wiring from the rear of the power shelves. See the “Removing AC Power Cords or DC Power Shelf Wiring” section on page 2-45.

Step 4 Remove the power shelves. See the “Removing a Modular Configuration Power Shelf” section on page 2-48.

Step 5 Install the new power shelves. See the “Installing a Modular Configuration Power Shelf” section on page 2-26.

Step 6 Install the power shelf wiring. See the “Installing AC Power Cords or DC Power Shelf Wiring” section on page 2-35.

Note If you are converting from modular configuration DC to modular configuration AC power, and if you have 3-phase AC Delta or AC Wye power at your equipment, a Cisco CRS PDU will be required to convert 3-phase AC input power to single-phase AC input power for the power shelf. For further information, refer to Cisco CRS 3-Phase AC Power Distribution Unit Installation Guide.

Step 7 Install the AC or DC PMs. See the “Installing AC or DC PMs” section on page 2-40.

Step 8 Power the chassis back up. See the “Power Up and Power Down a Chassis with a Modular Configuration AC or DC Power Shelf” section on page 2-51.

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide

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