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

[Image]

                  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.