DIGITAL I/O Number of channel (software configurable): 16 DI & 16 DO, 32 DI, 32 DO Compatibility: 5 V/TTL Digital logic levels: - Input high voltage: 2-5.25 V - Input low voltage: 0-0.8 V - Output high voltage: 2.7 V maximum - Output low voltage: 0.5 V maximum Input load: - Terminator OFF - Input high current: 1mA - Input low current: 20 mA - Terminator ON - Termination resistor: 111O - Termination voltage: 2.9 V - Input high current: 1 mA - Input low current: 22.4 mA Output driving capacity: - Source current: 8 mA - Sink current: 48 mA TRANSFER CHARACTERISTICS Data transfers: Bus Mastering DMA with Scatter/Gather Data width: 32/16/8 bits (programmable) DATA TRANSFER COUNT 2 M double words (8 M Bytes) for non-chaining mode DMA No lomitation for chaining mode (scatter/gather) DMA TRIGGER DI_TRG for digital inputs, DO_TRG for digital outputs Compatibility: 5 V/TTL Trigger types: rising or falling edges Minimum pulse width: 32 ns CLOCKING MODE Internal clock: - Internal clock sources: 20 MHz, 10 MHz, Timer #0 output (digital input pacer) and Timer #1 output (digital output pacer) External clock: up to 40 MHz Handshaking Burst handshaking PROGRAMMABLE COUNTER Base clock: 10 MHz Timer #0 as digital input pacer Timer #1 as digital output pacer Timer #2 as interrupt source Auxiliary digital I/O Number of channel 4-CH digital inputs 4-CH digital outputs Compatibility: 5 V/TTL Data transfers: programmed I/O GENERAL SPECIFICATION I/O Connector: 100-pin SCSI-II female Operating temperature: 0 to 60°C Storage temperature: -20 to 80°C Relative humidity: 5 to 95%, noncondensing Power requirements: +12V 119mA typical (On board terminator off) +12V 287mA typical (On board terminator on) +3.3V 499mA typical (On board terminator off) +3.3V 543mA typical (On board terminator on) Dimensions (not including connectors): 168 x 112 mm
