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Appendix B - Configuring Serial/Parallel Adapters

Introduction

Note: Interrupts are a scarce resource. Banyan server software does not require interrupts for serial and parallel ports, but the IBM adapter is shipped with a configuration that uses interrupts. You may need to disable interrupts on the card to free them for use by a LAN or serial communications card.

Adding a Serial/Parallel Adapter to Your Banyan Server

Configuring the IBM Serial/Parallel Adapter for an ISA-bus Server

Figure B-1. IBM Serial/Parallel Adapter for ISA-bus Servers

Figure B-2. Module and Associated Socket Pairs

Figure B-3. Module Positions A and B

Figure B-4. Module with Interrupt Disabled

Table B-1. Configurations for the Serial/Parallel Adapter

Location Position Interrupt I/O Address Port Name Device To Disable, Cut Trace At
J1 A 4 3F8 Serial Port 1 COM 1 3
J1 B 3 2F8 Serial Port 2 COM 2 1
J2 A 7 378 Parallel Port 1 LPT 1 3
J2 B 5 278 Parallel Port 2 LPT 2 1

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