ICS PCI-16REL, User Manual

Page: 19 / 28

Technical Description 3-1
Chapter 3
Technical Description
The PCI-16REL board provides two parallel reed relay output ports. The ports
are organized as ports A, B, C, and D. To maintain compatibility with the
existing ISA interface adapter (PN 16REL), ports C and D (base 2
and 3) are the reed relay output port addresses.
Features
n Sixteen SPST relays
n DB-37 male connector
n Highly reliable 10VA DIP reed relays utilized
n Multiple adapters residing in one computer
n PCI 2.1 bus compatibility
Reed Relays
Reed relays provide very high quality, long life, low power, dry contact switch
closures. Reed relays are not suited for high current applications. They can be
destroyed by inductive load switching, where a spark occurs across the
contacts internally. The relays are normally open. They close when energized.