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ACL-8454/12 - 12-CH Counter/Timer Card
by ADLINK
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- 8-CH timers/counters
- 2-CH cascaded 32-bit timer with 1 MHz base clock
- On-board multiple base clocks ranging from 100 kHz
to 2 MHz
- External gate control and clock inputs for each
counter
- Inverted gate signals for 4-CH synchronized
frequency measurement
- Multiple interrupt sources from counter outputs,
timer outputs and external interrupt inputs
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ADLINK ACL-8454/12 is a general-purpose timer/counter and digital I/O card.
It is a compact-size add-on card for IBM AT compatible PC in control, monitoring
and sensing applications. ACL-8454/12 has four 8254 chips which results in eight
general-purpose 16-bit counters and two 32-bit timer. The counters can be set as
independent counters or cascaded counters. The gate control of every counter
comes from either external source or internal cascaded counters. The clock
source comes from either internal timebase or external inputs, which can be
selected by jumper setting. ADLINK ACL-8454/12 delivers cost-effective and
reliable digital output capabilities and are ideal for a broad variety of
applications.
Programmable Counter/Timer
- Device : 8254 x 2 (default), or 8254 x 4 (at most)
- Counters : 16-bit down counter
- Clock source : internal clock, external source or cascaded
- Gate control : default enable or external control
Digital I/O (DIO)
- # of input channels : 16 channels
- # of output channels : 8 channels (dedicated output)
- Electronics characteristics : TTL compatible signal
General Specifications
- I/O Base Address : 8 consecutive address space
- Interrupt IRQ : IRQ 3, ..., IRQ 15 (9 levels jumper selectable)
- Connector : 37-pin D-type female connector
- Operating Temperature : 0° C ~ 60° C
- Storage Temperature : -20° C ~ 80° C
- Humidity : 5 ~ 95%, non-condensing
- Power Consumption : +5 V @ 210 mA maximum
- Dimension : 163mm(L) X 108mm(W)
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