TANDON CORPORATION

SERIAL/PARALLEL OPTION BOARD

Category

Multi I/O

Data Bus Type

8-bit ISA

Memory Type

Unidentified

Maximum Onboard Memory

Unidentified

CONNECTIONS

Purpose

Location

Purpose

Location

25-pin parallel connector

CN1

9-pin serial connector

CN2

DSR CONTROL SETTINGS

Setting

JP1

DSR controlled by driver

Pins 1 & 2 closed

DSR forced true

Pins 2 & 3 closed

DSR forced false

All open

DCD CONTROL SETTINGS

Setting

JP2

DCD controlled by driver

Pins 1 & 2 closed

DCD forced true

Pins 2 & 3 closed

DCD forced false

All open

CTS CONTROL SETTINGS

Setting

JP3

CTS controlled by driver

Pins 1 & 2 closed

CTS forced true

Pins 2 & 3 closed

CTS forced false

All open

DTR CONTROL SETTINGS

Setting

JP4

DTR controlled by driver

Pins 1 & 2 closed

DTR forced true

Pins 2 & 3 closed

DTR forced false

All open

RTS CONTROL SETTINGS

Setting

JP5

RTS controlled by driver

Pins 1 & 2 closed

RTS forced true

Pins 2 & 3 closed

RTS forced false

All open

SERIAL INTERRUPT SETTINGS

IRQ

JP6

IRQ3

Pins 2 & 3 closed

IRQ4

Pins 1 & 2 closed

PARALLEL INTERRUPT SETTINGS

IRQ

JP7

IRQ5

Pins 2 & 3 closed

IRQ7

Pins 1 & 2 closed

PARALLEL PORT SETTINGS

Setting

JP8

LPT1

Pins 1 & 2 closed

LPT2

Pins 2 & 3 closed

SERIAL PORT SETTINGS

Setting

JP9

COM1

Pins 1 & 2 closed

COM2

Pins 2 & 3 closed