Product Description:
Features
8-CH timers/counters (ACL-8454/12)
4-CH timers/counters (ACL-8454/6)
2-CH cascaded 32-bit timer with 1 MHz base clock (ACL-8454/12)
1-CH cascaded 32-bit timer with 1 MHz base clock (ACL-8454/6)
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
Introduction
ADLINK ACL-8454 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. There are two versions of ACL- 8454 devices: ACL-8454/6 and ACL-8454/12. ACL-8454/6 has two 8254 chips, resulting in four generalpurpose 16-bit counters and one 32-bit timer, while ACL-8454/12 has four 8254 chips, resulting in eight general-purpose 16-bit counters and two 32-bit timer. The ACL-8454 device features multi-configurations. 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 devices deliver cost-effective and reliable analog output capabilities and are ideal for a broad variety of applications.
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