AXIOMTEK AX5420P, User Manual

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AX5420P & AX5425P User ’ s Manual
Introduction
1
C h a p t e r 1
Introduction
1.1 General Description
The AX5425P/AX5420P are PCI-isolated/Relay DIO cards
providing 16 (AX5425P) / 8 (AX5420P) opto-isolated digital
inputs and 16 (AX5425P) / 8 (AX5420P) Relay actuators
outputs. AX5425P is a 16 opto-isolated and 16 Relays card.
AX5420P is an 8 opto-isolated and 8 Relays card.
The board interface allows its plugging into any PCI slot of an
IBM™ PC/AT or compatible computer with PCI bus .The relays
switch many load that cannot be controlled by digital lines
directly. The opto-isolated digital inputs are suitable for
monitoring device ON/OFF status and alarms or sensors with
discrete outputs in noisy environments. Besides monitoring DC
inputs (non-polarized), the board can also be used to sense AC
inputs.
From the 16 electromechanical relays, 10 relays are FORM C
(Normally open, Normally closed and Common) and 6 are
FORM A (Normally open and Common). The contacts for Relay
1 through Relay 8 are rated at 3A at 120VAC or 24VDC with
resistive load while the contacts for Relay 9 through Relay 16
are rated at 3A at 120VAC or 24VDC with resistive load.
The opto-isolated inputs are not polarity sensitive, and can be
driven from DC or AC control voltages. The isolation voltage is
guaranteed at 1000v so that common-mode voltages and
voltage spikes that often occur in industrial and research
environments are safely isolated from the computer with the
AX5425P and AX5420P.