SEALEVEL SYSTEMS, INC.

C4-104

Card Type

Serial card

Chip Set

Unidentified

I/O Options

Serial ports (4), PC/104 connectors (2)

Data Bus

Unidentified

CONNECTIONS

Function

Label

Function

Label

Serial port

J1

Serial port

J4

Serial port

J2

PC/104 connector (8-bit)

P1

Serial port

J3

PC/104 connector (16-bit)

P2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured – do not alter

E5

Unidentified

»

Factory configured – do not alter

E6

Unidentified

SERIAL PORT ADDRESS SELECTION

Port 1

Port 2

Port 3

Port 4

SW1/1

SW1/2

SW1/3

SW1/4

»

3F8

2F8

3E8

2E8

On

On

On

On

 

2F8

3E8

2E8

2E0

On

On

On

Off

 

3E8

2E8

280

288

On

On

Off

On

 

280

288

290

298

On

On

Off

Off

 

2A0

2A8

2B0

2B8

On

Off

On

On

 

500

508

510

518

On

Off

On

Off

 

580

588

590

598

On

Off

Off

On

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

E1

 

2/9

Pins 1 & 2 closed

 

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

 

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed

»

R

Pins 19 & 20 closed

Note: IRQ R connects a 1k ohm pull down resistor to allow multiple ports to share a single IRQ.

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

E2

 

2/9

Pins 1 & 2 closed

 

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

 

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed

»

R

Pins 19 & 20 closed

SERIAL PORT 3 INTERRUPT SELECTION

IRQ

E3

 

2/9

Pins 1 & 2 closed

 

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

 

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed

»

R

Pins 19 & 20 closed

SERIAL PORT 4 INTERRUPT SELECTION

IRQ

E4

 

2/9

Pins 1 & 2 closed

 

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

 

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed

»

R

Pins 19 & 20 closed

SERIAL PORT 1 SELECTION

Setting

E7

RS-485 enabled

Pins 1 & 2 closed

RS-485 echo disabled

Pins 3 & 4 closed

SERIAL PORT 2 SELECTION

Setting

E7

RS-485 enabled

Pins 5 & 6 closed

RS-485 echo disabled

Pins 7 & 8 closed

SERIAL PORT 3 SELECTION

Setting

E8

RS-485 enabled

Pins 1 & 2 closed

RS-485 echo disabled

Pins 3 & 4 closed

SERIAL PORT 4 SELECTION

Setting

E8

RS-485 enabled

Pins 5 & 6 closed

RS-485 echo disabled

Pins 7 & 8 closed