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422/485PC-20-X, CLIO

AMS, INC.

422/485PC-20-X, CLIO

Card Type

Serial card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial ports (2)

Hard Drives supported

None

Floppy drives supported

None

Data Bus

8-bit ISA

Card Size

Half-length, half-height card

CONNECTIONS

Function

Label

Function

Label

DB-25 connector

CN1

38-pin serial connector

J3

DB-9 connector

CN2

26-pin serial connector

J4

SERIAL PORT ADDRESS SELECTION

Serial Port 1

Serial Port 2

J5/A

J5/B

J5/C

J5/D

COM1 (3F8h)

Disabled

Closed

Open

Open

Open

COM2 (2F8h)

Disabled

Open

Closed

Open

Open

COM3 (3E8h)

Disabled

Open

Open

Closed

Open

COM4 (2E8h)

Disabled

Open

Open

Open

Closed

COM1 (3F8h)

COM2 (2F8h)

Closed

Closed

Open

Open

COM2 (2F8h)

COM3 (3E8h)

Open

Closed

Closed

Open

COM3 (3E8h)

COM4 (2E8h)

Open

Open

Closed

Closed

Disabled

Disabled

Open

Open

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

SP1

IRQ2

Jumper A closed

IRQ3

Jumper B closed

IRQ4

Jumper C closed

IRQ5

Jumper D closed

IRQ6

Jumper E closed

IRQ7

Jumper F closed

IRQ10

Jumper G closed

IRQ11

Jumper H closed

IRQ12

Jumper I closed

IRQ14

Jumper K closed

IRQ15

Jumper J closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

SP2

IRQ2

Jumper A closed

IRQ3

Jumper B closed

IRQ4

Jumper C closed

IRQ5

Jumper D closed

IRQ6

Jumper E closed

IRQ7

Jumper F closed

IRQ10

Jumper G closed

IRQ11

Jumper H closed

IRQ12

Jumper I closed

IRQ14

Jumper K closed

IRQ15

Jumper J closed

SERIAL PORT 1 RESISTOR SELECTION

Location

Signal(s)

R3

TxD

R4

RxD

R5

RTS

R8

DSR

R9

CD

R10

DTR

R11

CTS

SERIAL PORT 2 TERMINATION

Location

Signal(s)

R12

CTS

R13

DSR

R14

DTR

R15

CD

R19

RTS

R20

RxD

R21

TxD

MISCELLANEOUS TECHNICAL NOTES

Note: Terminating resistors are usually only needed if the card is installed in systems using high baud rates. If terminating resistors are required, insert them into the listed locations. Size and type of resistor are unidentified.