H3C PSR250-12A1 Manual de usuario

Functions

Product code and model

Product code Product model

PSR250-12A1-D PSR250-12A1

PSR250-12A1-D

is an AC input and DC output power module with a

maximum of 250 W power output. It provides port-

side intake and power

module-side exhaust airflows.

The PSR250-12A1-D provides the following features:

•Protection—Provides protection against input overcurrent, output current

limiting, input undervoltage, output overvoltage, output short circuit, and

overtemperature conditions.

•Redundancy—Two power modules can be connected in parallel to achieve 1+1

redundancy and load sharing.

•Hot swapping—You can install or remove a power module when the device is

operating correctly.

Protection feature Protection state Restoration

Output overvoltage

protection

No power output and the power

module status LED is steady

red.

Power supply restores only when you

reconnect the power cord to the

power source. The power module

status LED is steady green.

Output current

limiting protection

No power output and the power

module status LED is steady

red.

Power supply restores after the issue

is resolved. The power module status

LED is steady green.

Output short circuit

protection

No power output and the power

module status LED is steady

red.

Power supply restores after the issue

is resolved. The power module status

LED is steady green.

Overtemperature

protection

No power output and the power

module status LED is steady

red.

Power supply restores after the issue

is resolved. The power module status

LED is steady green.

Input undervoltage

protection

No power output and the power

module status LED is flashing

red.

Power supply restores after the issue

is resolved. The power module status

LED is steady green.

H3C

PSR250-12A1-D Power Modules User Manual-5PW10

BOM: 3104A0P3

Specifications

Item Specifications

AC input

Rated input voltage range 100 to 240 VAC @ 50/60 Hz

Rated input current 4A

Max input voltage range 90 to 290 VAC @ 47/63 Hz

Max input current 5A

Output voltage 12V/3.3V

Output current 20.9A(12V)/2A(3.3V)

Max output power 250W

Dimensions (H × W × D) 40.2 × 50.5 × 221 mm (1.58 × 1.99 ×

8.70 in)

Operating temperature -10°C to +55°C (14°F to 131°F)

Relative humidity 5%RH~95%RH

Power module

Power module status LED

An PSR250-12A1-D has a status LED on its front panel. The following table lists the LED status

and description.

LED status Description

Steady green The power module is operating correctly.

Flashing green The power module haspower input but is not installedon the device.

Steady red The power module is faulty or has entered protection state.

Red/green flashing

alternatively

The power module has generated an alarm for power issues (such

as output overcurrent, output overload, and overtemperature), but

has not entered protection state.

Latch

Status LED

Power input

receptacle

Handle

LED status Description

Flashing red

•The power module does not have power input. The device is

installed with two power modules. If one has power input, but the

other does not, the status LED on the power module that does not

have power input flashes red.

•The power module has entered input undervoltage protection

state.

Off The power module does not have power input.

Installing and removing a power module

Before you install a power module, make sure it is compatible with the

device. For more information, see the installation guide for the device.

Safety precautions

To avoid bodily injury or damage to the power module and device, follow these

safety precautions:

(1) Before you install the power module, make sure it matches the airflowdirection

at the installation site.

(2) When you install and remove a power module, always wear an ESD wrist strap

and make sure it makes good skin contact.

(3) To avoid power module or device damage, make sure the operating voltage of

the power supply system is consistent with the rated voltage of the power

module, and the output voltage of the power module is consistent with the

voltage required by the device before installing the power module.

(4) To avoid bodily injury, do not touch any bare cables or terminals.

(5) Do not place the powermodule on a moist area and prevent liquid from flowing

into the power module.

(6) To avoid power module damage, do not open the power module. When the

internal circuits or components of the power module fail, contact the maintainer

for examining and repairing.

Tools

When you install and remove a power module and power cords, you must

wear an ESD wrist strap. Prepare it by yourself.

Installing a power module

To avoid bodily injury or device damage, follow the steps in the following

figure to install a power module.

(1) Wear an ESD wrist strap and make sure the strap makes good skin contact

and is reliably grounded.

(2) Remove the filler panel, if any, from the target power module slot. Keep the

filler panel secure for future use.

(3) Unpack the power module and verify that the power module model is correct.

Keep the power modulepackage secure for future use.

(4) Correctly orient the power module. Holding the power module handle with one

hand and supporting its bottom with the other, slide the power module slowly

into the slot along the guide rails until the latch of the power module clicks into

the slot. The power module and power module slot have disorientation

rejection designs. If you encounter a hard resistance while inserting the power

module, pull out the power module and insert it again.

•Follow theforward inertia to push the power moduleinto the

slot so that

the back end of the power module can have a good contact with the

backplane.

•

To avoid damaging orbending the powermodule terminals, pull out and

reinstall the power module in case of any misalignment.

Connecting a power cord

•Provide a circuit breaker for each power cord.

•Turn off the circuit breaker before connecting the power cord.

Install the power module Connect the power cord Turn on the circuit breaker

(1) Connect the female connector of the power cord to the power receptacle on

the power module.

(2) Use a releasable cable tie to secure the power cord to the power module

handle.

(3) Connect the other end of the power cord to an AC power source, and then turn

on the circuit breaker.

(4) Examine the status LED on the power module. If the LED is steady green, the

power cord is connected correctly. If the LED is off or red, examine the

installation and resolve the issues.

Removing a power module

To avoid bodily injury or device damage, follow the steps in the following

figure to remove a power module.

(1) Turn off the circuit breaker for the power module.

(2) Wear an ESD wrist strap and make sure the strap makes good skin contact

and is reliably grounded.

Turn off the circuit breaker Remove the power cord Remove the power

module

(3) Loosen the releasable cable tie and remove the power cord.

(4) Holding the power module handle with one hand, press the latch on the power

module towards the handle direction with your thumb, and pull the power

module part way out of the slot. Supporting the power module bottom with the

other, pull the power module out of the slot slowly.

(5) Put the removed power module on an antistatic mat or in its original package.

If you are

not to install a new power module, install a filler panel in the slotto

prevent dust from entering the chassis.

The information in this document is subject to change without notice.

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