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Power supply/ fan module removal, Replacing inoperative fans – Paradyne Jetstream CPX-1000 User Manual

Page 116

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5. Repair Procedures

1000-A2-GN22-00

5-2

February 2003

Power Supply/
Fan Module
Removal

Each CPX is equipped with 3 power supply/fan modules.
Removing a single power supply does not interrupt system
operation. To remove a power supply/fan module, see

Figure 5–1

and follow these steps:

Step 1

Loosen the two screws located at the bottom of the module.

Figure 5–1. Power Supply/Fan Module Removal

Step 2

Grip the handle on the front of the module, and slowly pull it
straight out of the chassis. Support the module from the bottom,
and lift the back edge of it over the front lip of the chassis.

Replacing
Inoperative
Fans

If a fan in a power supply/fan module has failed, replace the
affected fan assembly (

Figure 5–1

).

To replace (hot swap) a fan without removing the module or
turning off power:

Step 1

Remove the filter from the power supply to expose four screws.

Step 2

Loosen the four screws that attach the fan to the power supply.

Step 3

Pull the handle of the power supply straight out.

0178

Pull To Remove Fan

OUT

OF

SER

VICE

IN
SER

VICE

OUT OF
SER

VICE

IN
SER

VICE

OUT

OF

SER

VICE

IN
SER

VICE

Lift Out Filter

OUT OF
SER

VICE

IN
SER

VICE

OUT

OF

SER

VICE

IN
SER

VICE

Remove 4 Screws

Danger: Shock Hazard

The CPX uses

−48VDC plant battery for primary power. This

circuit can supply a level of current that can be fatal.
Use extreme caution when working around this voltage,
during installation, operation, testing, and adjusting.
Remove the voltage at its point of distribution to the CPX
before you connect or disconnect equipment power leads.