IBM 6288, 6268, 6278 manual Output protection, Connector description

Chapter

4.

Power supply

Note:

Some

adapters and

hard disk drives draw more current than the recommended limit

adapters and drives can be

installed

in

the system;

however,

the

power

supply

total

power

used

exceeds

the

maximum

power

that

is

available.

Output protection

The power supply protects against

output

overcurrent,

overvoltage,

and

short

circuits.

supply specifications

on

the

previous

pages

for

details.

A short circuit that is placed on

any

dc

output

(between

outputs

or

between

an

ou

latches

all

dc

outputs

into a shutdown state, with no damage to

the power

supply. I

occurs, the power supply returns to normal

operation

only after

the

fault has

been

switch

has

been

turned

off for at least one second.

If

an

overvoltage

fault

occurs

(in

the

power

supply),

the

power

supply

latches all

shutdown

state

before

any

output

exceeds

130%

of

the

nominal

value

of

the

power

su

Connector description

The

power

supply

for

the

PC

300GL

has four, 4-pin connectors

for

internal

devices. The

by

the

connectors

must

not

exceed

the

amount

shown

in

“Component

outputs”

on

page 18.

connector pin

assignments,

see

Appendix A,

“Connector

pin

assignments”

on

page 25.

Chapter 4. Power supply19