Adlink ACL-8454/12 - *Discontinued* - 12-CH Counter/Timer Card
by ADLINK

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)