Introduction To The Power Module; Introduction - H3C PSR750-A Manual

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Introduction to the Power Module

Introduction

The PSR750-A is an AC-input and DC-output power module. It can convert the input voltage to 12 V
and –54 V as required, and its maximum output power is 750 W. The PSR750-D is a DC-input and
DC-output power module. It can convert the input voltage to 12 V and –52 V as required, and its
maximum output power is 1800 W.
Table 1-1 Features supported by the PSR750-A/PSR750-D
Feature
Protection
Redundancy
Hot swapping
Auto-recovery support of the PSR 750-A/PSR750-D in the protection status is shown in
Table 1-2 Protection functions of the PSR 750-A/PSR750-D
Model
PSR 750-A
PSR 750-A and
PSR750-D
PSR 750-A and
PSR750-D
PSR 750-A and
PSR750-D
PSR750-D
Output over-voltage protection, output short-circuit protection, output
current-limiting protection, and overheat protection.
Supports parallel connection of two power modules, thus implementing 1+1
redundant current sharing.
When the device works normally, you can power off a power module of the 1+1
redundant power supply system and remove it from the device.
Protection function
Over-voltage protection
Short-circuit protection
Current-limiting protection
Overheat protection
Wrong input polarity
protection
Description
Status
No power supply with
the power module
deadly locked
No power supply
No power supply
No power supply
No power supply
1-1
Table 1-2.
Auto-recovery
support
Not supported
Supported
Supported
Supported
Supported