IBM PS/2 90 XP 486 Hardware Maintenance Reference page 19

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2.3.6 Parallel Port

The parallel port allows the attachment of devices that accept eight bits

of parallel data at standard transistor-transistor logic (TTL) levels.

The port has a 25-pin, D-shell connector and is designed primarily for

printers.

However, the port can be used as an input/output port for any

device or application that matches the input/output capabilities of the

port.

When adapters with additional parallel ports are installed, the

system supports four devices, each addressed separately as PARALLEL 1,

PARALLEL 2, PARALLEL 3 or PARALLEL 4.

devices if two or more devices are addressed the same.

configuration option from the system programs on the hard disk drive.

Select View configuration to verify that no lines are addressed the same.

Note:

If a conflict occurs, an asterisk appears next to the conflicting

address.

IBM PS/2 Model 90 XP 486 and 95 XP 486 HMR

Parallel Port

Conflicts occur when using multiple

2.3.6 - 1

Select the Set

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