IBM 560E manual Output Protection, Voltage Sequencing, Power Supply Connector

Output Protection

A

short

circuit

placed

on

any dc

output (between

outputs

or between

an

output

and

a dc return) latches all

dc

outputs

into a

shutdown

state,

with no

hazardous

condition

to

the

power

supply.

If an overvoltage fault occurs in the

power supply, the power supply

latches all dc outputs into a shutdown

state before any

output

exceeds

135%

of

the

nominal value

of

the

power

supply.

Voltage Sequencing

When power is turned on, the output voltages reach their operational voltages within 2 seconds.

Power Supply Connector

The following connector is used with the AC Adapter. The total power capacity of this connector must not exceed 4.0 A.

2

1

Refer to Figure 1-9 for the appropriate adapter pin assignments.

Pin

1

2

Voltage

+7.0 V dc+16to.0 V dc (depending on charging conditions) Ground

Figure 1-9. Voltage Pin Assignments for 35W AC Adapter

1-12ThinkPad 560/560E System Overview