Product category:
VMEbus Boards and Assemblies
News Release from: BVM | Subject: PMC DIO64 and DIO32
Edited by the Electronicstalk Editorial
Team on 12 June 2001
Digital I/O modules for all flavours of
Windows
BVM has added two new digital I/O PMC modules to its range: the PMC DIO64, a 64bit unit with TTL I/O, and the PMC DIO32, a 32bit optoisolated module.
BVM has added two new digital I/O PMC modules to its range: the PMC DIO64, a 64bit unit with TTL I/O, and the PMC DIO32, a 32bit optoisolated module On the DIO64, bits can be selected as input or output under program control allowing considerable flexibility in system design and minimising spares requirements
This article was originally published on Electronicstalk on 23 Jun 2000 at 8.00am (UK)
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The optocouplers on the DIO32 are factory selectable as input or output.
Normal stock items are 32 inputs, 32 outputs or 16 and 16 with other combinations available to special order.
Both modules have a watchdog timer programmable between 125ms and 2s which can tristated the outputs if required.
Interrupts can be generated on change of state, doing away with the need for regular polling of the inputs.
TTL inputs are latched by the 33MHz PCI clock whilst the optocoupled inputs are provided with a double sample debounce capability.
The modules can be used in a wide variety of host environments and are supplied with comprehensive, multifunctional drivers and example source code for all flavours of Windows.
The DIO32 optocoupled unit has good isolation capability with 2kV I/O to logic isolation and 1kV channel to channel.
Output current is limited to 250mA, 0 to 48V DC and is short-circuit protected; input current is limited to 5mA over the same voltage range.
The DIO64's TTL lines will source or sink 32/64mA, respectively, and are protected by a resettable fuse.
I/O connections are available via the front panel mounted 68-pin SCSI-III connector and at the rear via the P4 connector.
Various I/O breakout modules are available for remote mounting to ease the task of real-world interfacing.
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