FEATURES
Universal PCI, PCI-X, 3.3V and 5V compatible
24
bits of digital I/O
Four
and eight bit ports independently selectable for I/O
All
24 I/O lines buffered by transceivers on the card
I/O
buffers can be enabled/disabled under program control
Pull-ups
on I/O lines
Resettable
fused +5 VDC output available
'H'
version compatible with industry-standard I/O racks from
Western Reserve Controls, Gordos, OPTO22, Potter & Brumfield,
etc.
Optional
1 MHZ counters
Automatically
detected under Windows 95/98/NT/XP
No
base address or IRQ switches to set
RoHS compliant versions available
FUNCTIONAL
DESCRIPTION
These
cards are 24-bit parallel, digital input/output cards designed
for use in PCI-Bus computers. The difference between the models
is that I/O connections to PCI-DIO24D are via a standard 37-pin
D-sub connector while I/O connections to PCI-DIO24H are via
a 50-pin connector. The cards are 4.80 inches long (122 mm)
and may be installed in any 5V PCI-bus slot in IBM and compatible
personal computers.
These
cards contain a type 8255-5 Programmable Peripheral Interface
(PPI) chip. They can be programmed to accept inputs or to provide
outputs on three 8-bit ports: designated Ports A, B, and C.
Port C can be further divided into two 4-bit nibbles.
Each
I/O line is buffered by a type 74LS245 tristate buffer transceiver
capable of sourcing 15 mA. or sinking 24 mA. (64 mA. on request (74F245)).
The buffers are configured under program control for input or
output use according to direction control signals from the control
register inside the PPI. Pull-ups (to +5 VDC) on the card assure
that there are no erroneous outputs at power-up until the card
is initialized by system software. Further, jumpers on the card
provide a choice to either permanently enable the buffers or
to tri-state them under program control.
Input/Output
wiring connections for the PCI-DIO24D are via a 37-pin D-sub
connector on the card mounting bracket. Either a 37-pin D-sub
solder cup mating connector or an insulation-displacement ribbon
cable can be used for I/O connections. Fused +5 VDC power is
available at the I/O connector. A resettable on-board fuse is
rated at 0.5A and can be reset by cycling computer power.
Input/Output
wiring connections for PCI-DIO24H are via a 50-pin connector
on the card mounting bracket. Insulation displacement ribbon
cables can be used for I/O connections to termination panels
such as ACCES' model STA-50 Screw Terminal card. The pin connections
are also compatible with ACCES A24A , OPTO22, Gordos, Potter
& Brumfield, etc opto-isolated module mounting racks. If needed
for external circuits, fused +5VDC power is available at the
I/O connector. The resettable 0.5A fuse can be reset by cycling
computer power.
COUNTER/TIMERS
Optionally
you can have one, two, or three 48-bit down counters configured
as Event Counters. (See the Block Diagram which shows one 48-bit
counter.) and can also be used as a Frequency source. To designate
that you wish these counters, add -S01, -S02, and -S03 respectively
to the model number. For example, a 24-bit digital input/output
card with a 50-pin connector and one 48-bit counter is model
PCI-DIO24H-S01.
The fused +5V output is available on all versions of the PCI-DIO-24D and H with the exception of the PCI-DIO-24D-S03. The -S03 on this card does not have +5V on the connector due to the limited number of pins on the DB37.
Universal PCI, PCI-X, 3.3V and 5V compatible
24
bits of digital I/O
Four
and eight bit ports independently selectable for I/O
All
24 I/O lines buffered by transceivers on the card
I/O
buffers can be enabled/disabled under program control
Pull-ups
on I/O lines
Resettable
fused +5 VDC output available
'H'
version compatible with industry-standard I/O racks from
Western Reserve Controls, Gordos, OPTO22, Potter & Brumfield,
etc.
Optional
1 MHZ counters
Automatically
detected under Windows 95/98/NT/XP
No
base address or IRQ switches to set
RoHS compliant versions available
FUNCTIONAL
DESCRIPTION
These
cards are 24-bit parallel, digital input/output cards designed
for use in PCI-Bus computers. The difference between the models
is that I/O connections to PCI-DIO24D are via a standard 37-pin
D-sub connector while I/O connections to PCI-DIO24H are via
a 50-pin connector. The cards are 4.80 inches long (122 mm)
and may be installed in any 5V PCI-bus slot in IBM and compatible
personal computers.
These
cards contain a type 8255-5 Programmable Peripheral Interface
(PPI) chip. They can be programmed to accept inputs or to provide
outputs on three 8-bit ports: designated Ports A, B, and C.
Port C can be further divided into two 4-bit nibbles.
Each
I/O line is buffered by a type 74LS245 tristate buffer transceiver
capable of sourcing 15 mA. or sinking 24 mA. (64 mA. on request (74F245)).
The buffers are configured under program control for input or
output use according to direction control signals from the control
register inside the PPI. Pull-ups (to +5 VDC) on the card assure
that there are no erroneous outputs at power-up until the card
is initialized by system software. Further, jumpers on the card
provide a choice to either permanently enable the buffers or
to tri-state them under program control.
Input/Output
wiring connections for the PCI-DIO24D are via a 37-pin D-sub
connector on the card mounting bracket. Either a 37-pin D-sub
solder cup mating connector or an insulation-displacement ribbon
cable can be used for I/O connections. Fused +5 VDC power is
available at the I/O connector. A resettable on-board fuse is
rated at 0.5A and can be reset by cycling computer power.
Input/Output
wiring connections for PCI-DIO24H are via a 50-pin connector
on the card mounting bracket. Insulation displacement ribbon
cables can be used for I/O connections to termination panels
such as ACCES' model STA-50 Screw Terminal card. The pin connections
are also compatible with ACCES A24A , OPTO22, Gordos, Potter
& Brumfield, etc opto-isolated module mounting racks. If needed
for external circuits, fused +5VDC power is available at the
I/O connector. The resettable 0.5A fuse can be reset by cycling
computer power.
COUNTER/TIMERS
Optionally
you can have one, two, or three 48-bit down counters configured
as Event Counters. (See the Block Diagram which shows one 48-bit
counter.) and can also be used as a Frequency source. To designate
that you wish these counters, add -S01, -S02, and -S03 respectively
to the model number. For example, a 24-bit digital input/output
card with a 50-pin connector and one 48-bit counter is model
PCI-DIO24H-S01.
The fused +5V output is available on all versions of the PCI-DIO-24D and H with the exception of the PCI-DIO-24D-S03. The -S03 on this card does not have +5V on the connector due to the limited number of pins on the DB37.
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