SEALEVEL SYSTEMS, INC.

REL-16

Card Type

Relay Output board

Chip Set

Unidentified

I/O Options

Parallel ports (2) via DB37 port

Data Bus

8-bit ISA

Card Size

Half-length, full-height

CONNECTIONS

Function

Label

37-pin parallel port

P2

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

000h

On

On

On

On

On

On

On

On

008h

On

On

On

On

On

On

On

Off

018h

On

On

On

On

On

On

Off

Off

038h

On

On

On

On

On

Off

Off

Off

078h

On

On

On

On

Off

Off

Off

Off

780h

Off

Off

Off

Off

On

On

On

On

7C0h

Off

Off

Off

Off

Off

On

On

On

7E0h

Off

Off

Off

Off

Off

Off

On

On

7F0h

Off

Off

Off

Off

Off

Off

Off

On

7F8h

Off

Off

Off

Off

Off

Off

Off

Off

Note:

A total of 255 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Least Significant Bit and switch SW1/1 is the Most Significant Bit. The switches have the following decimal values: SW1/8=8, SW1/7=16, SW1/6=32, SW1/5=64, SW1/4=128, SW1/3=256, SW1/2=512, SW1/1=1024. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0)

MISCELLANEOUS TECHNICAL NOTES

Output ports are connected to 16 dip reed relays. Relays close when energized.