Acces I/O products PCI-IDO-48A User manual

10623 Roselle Street, San Diego, CA 92121 •[phone] •FAX [phone]
[email protected] •www.accesio.com
MODELS
PCI-IDO-48A,
PCI-IDO-32A,
and PCI-IDO-16A
Isolated FET Outputs PCI Card
With External Trigger Updates
USER MANUAL
FILE: MPCI-IDO-48A.A2c

Manual PCI-IDO-48A Series
2
Notice
The information in this document is provided for reference only. ACCES does not assume any liability arising
out of the application or use of the information or products described herein. This document may contain or
reference information and products protected by copyrights or patents and does not convey any license under
the patent rights of ACCES, nor the rights of others.
IBM PC, PC/XT, and PC/AT are registered trademarks of the International Business Machines Corporation.
Copyright by ACCES I/O Products Inc, 10623 Roselle Street, San Diego, CA 92121. All rights reserved.
WARNING!!
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE
COMPUTER POWER OFF. ALWAYS TURN COMPUTER POWER OFF
BEFORE INSTALLING A CARD. CONNECTING AND DISCONNECTING
CABLES, OR INSTALLING CARDS INTO A SYSTEM WITH THE
COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I/O
CARD AND WILL VOID ALL WARRANTIES, IMPLIED OR EXPRESSED.

Manual PCI-IDO-48A Series
3
Warranty
Prior to shipment, ACCES equipment is thoroughly inspected and tested to applicable specifications. However,
should equipment failure occur, ACCES assures its customers that prompt service and support will be available.
All equipment originally manufactured by ACCES which is found to be defective will be repaired or replaced
subject to the following considerations.
Terms and Conditions
If a unit is suspected of failure, contact ACCES' Customer Service department. Be prepared to give the unit
model number, serial number, and a description of the failure symptom(s). We may suggest some simple tests
to confirm the failure. We will assign a Return Material Authorization (RMA) number which must appear on the
outer label of the return package. All units/components should be properly packed for handling and returned
with freight prepaid to the ACCES designated Service Center, and will be returned to the customer's/user's site
freight prepaid and invoiced.
Coverage
First Three Years: Returned unit/part will be repaired and/or replaced at ACCES option with no charge for labor
or parts not excluded by warranty. Warranty commences with equipment shipment.
Following Years: Throughout your equipment's lifetime, ACCES stands ready to provide on-site or in-plant
service at reasonable rates similar to those of other manufacturers in the industry.
Equipment Not Manufactured by ACCES
Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms
and conditions of the respective equipment manufacturer's warranty.
General
Under this Warranty, liability of ACCES is limited to replacing, repairing or issuing credit (at ACCES discretion)
for any products which are proved to be defective during the warranty period. In no case is ACCES liable for
consequential or special damage arriving from use or misuse of our product. The customer is responsible for all
charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or, if in
ACCES opinion the equipment has been subjected to abnormal use. "Abnormal use" for purposes of this
warranty is defined as any use to which the equipment is exposed other than that use specified or intended as
evidenced by purchase or sales representation. Other than the above, no other warranty, expressed or implied,
shall apply to any and all such equipment furnished or sold by ACCES.

Manual PCI-IDO-48A Series
4
Table of Contents
Chapter 1: Introduction ........................................................................................................ 5
Features ............................................................................................................................. 5
Applications....................................................................................................................... 5
Functional Description...................................................................................................... 5
Figure 1-1: Block Diagram.............................................................................................................................6
Figure 1-2: Isolated FET Output Schematic..................................................................................................7
Ordering Guide.................................................................................................................. 7
Model Options ................................................................................................................... 7
Special Order..................................................................................................................... 7
Included with your board.................................................................................................. 7
Optional Accessories........................................................................................................ 8
Chapter 2: Installation .......................................................................................................... 9
Chapter 3: Option Selection............................................................................................... 11
Figure 3-1: Option Selection Map............................................................................................................... 11
Chapter 4: Address Selection............................................................................................ 12
Chapter 5: Programming.................................................................................................... 13
Table 5-1: Register Address Map............................................................................................................. 13
Chapter 6: Connector Pin Assignments ........................................................................... 15
Table 6-1: Port 0 Connector Pin Assignments (P2).................................................................................... 15
Table 6-2: Port 1 Connector Pin Assignments (P3).................................................................................... 16
Table 6-3: Port 2 Connector Pin Assignments (P4).................................................................................... 17
Chapter 7: Specifications................................................................................................... 18

Manual PCI-IDO-48A Series
5
Chapter 1: Introduction
The PCI-IDO-48A is a PCI board providing opto-isolated discrete outputs with load voltages
up to 60VDC. Solid-state, P-Channel FET switches are used as the output elements
providing greater reliability and much faster turn-on and turn-off time than is possible with
electromechanical relays. Immediate and External Trigger modes offer flexibility for updating
the outputs.
Features
Up to 48 individually isolated digital Outputs
Immediate and External Trigger Modes
Trigger Over-run / Buffer Under-run error detection
All solid-state design permits higher throughput than is possible with electromechanical relays
Load voltages up to 60VDC
Outputs off at power turn-on and computer reset
Output connectors via on-card ribbon-cable headers
Lower cost per point than externally-racked solid-state relay modules
Applications
POS (Point-of-sale) Systems
Gaming Machines
Telecommunications
Industrial Automation
ATM (Automated Teller Machine) Systems
Multiple terminal control
Office Automation
Kiosks
Functional Description
This series of cards provide 48, 32, or 16 opto-isolated discrete outputs. Each output is
individually isolated using solid-state, P-Channel FET switches. These switches provide
higher throughput in comparison to electromechanical relays. The outputs require user-
supplied load voltages ranging from 5VDC to 60VDC. Diodes are included across the load for
inductive-spike protection.
The outputs are grouped into six 8-bit bytes. There are two software selectable modes for
updating the outputs: Immediate and External Trigger mode. Immediate mode updates the
outputs as they are written. External Trigger mode stores the written output values into a
buffer. The buffer contents are transferred to the outputs with a rising edge of the External
Trigger. Outputs can be written multiple times without an External trigger occurring.
However, only the last written values will be transferred upon a rising edge of the External
Trigger. The Trigger Control Register can also be software configured to reset both the buffer
contents and outputs on a falling edge. This allows pulse-width control of the outputs.

Manual PCI-IDO-48A Series
6
This board is also able to detect and count buffer underrun errors when using the External
Trigger mode. A buffer underrun error occurs when a rising edge of the External Trigger
happens before the outputs are written. Conversely, buffer overflow occurs when outputs are
written more than once without an External Trigger rising edge. To prevent buffer overflow, a
software readable bit can be polled to tell if a rising edge of the External Trigger has
happened.
Refer to Chapter 5: Programming for details regarding the functions mentioned above.
Output connections are via three 50-pin IDC connectors, labeled Port0, Port1, and Port2 in
this manual. Each Port contains sixteen outputs and Port0 also contains The External Trigger
input.
Outputs are broken out using 50-wire ribbon cables that mate with the IDC connectors on the
card. A strain relief bar where the cables exit the card assures that the cables will not interfere
with adjacent cards. Standard cables are six feet long but alternate lengths are available.
Figure 1-1: Block Diagram

Manual PCI-IDO-48A Series
7
Figure 1-2: Isolated FET Output Schematic
Ordering Guide
PCI-IDO-48A 48-Channel FET Output Board
PCI-IDO-32A 32-Channel FET Output Board
PCI-IDO-16A 16-Channel FET Output Board
Model Options
-T Extended temperature operation (-40° to +85°C)
-RoHS RoHS compliant version
Special Order
Please contact ACCES with your precise requirement. Examples of special orders would be
conformal coating, custom software, etc., we will work with you to provide exactly what is
required.
Included with your board
The following components are included with your shipment, depending on options ordered.
Please take the time now to ensure that no items are damaged or missing.
PCI FET Output Card
Software Master CD
Quick-Start Guide

Manual PCI-IDO-48A Series
8
Optional Accessories
CAB50F-6
Six-foot ribbon cable assembly with
50-pin female connectors
STB-50
Screw terminal board, typically ships
with standoffs but can also mount on
SNAP-TRACK or DIN-SNAP
DIN-SNAP-6
Six inch length of SNAP-TRACK with
two clips, for mounting one STB-50
screw terminal board on a DIN rail
STB-72CH
50-Pin Three-Header Universal Screw
Terminal Board Installed in T-BOX Black
Powder-Coated Metal Enclosure
MP104-DIN
Kit allows DIN rail mounting of STB-72CH
in the T-BOX.

Manual PCI-IDO-48A Series
9
Chapter 2: Installation
A printed Quick-Start Guide (QSG) is packed with the card for your convenience. If you’ve
already performed the steps from the QSG, you may find this chapter to be redundant and
may skip forward to begin developing your application.
The software provided with this card is on CD and must be installed onto your hard disk prior
to use. To do this, perform the following steps as appropriate for your operating system.
CD Software Installation
The following instructions assume the CD-ROM drive is drive “D”. Please substitute the
appropriate drive letter for your system as necessary.
DOS 1. Place the CD into your CD-ROM drive.
2. Type  to change the active drive to the CD-ROM drive.
3. Type  to run the install program.
4. Follow the on-screen prompts to install the software for this board.
WINDOWS
1. Place the CD into your CD-ROM drive.
2. The system should automatically run the install program. If the install program does
not run promptly, click START | RUN and type , click OK or press
.
3. Follow the on-screen prompts to install the software for this board.
LINUX
1. Please refer to linux.html on the CD-ROM for information on installing under linux.

Manual PCI-IDO-48A Series
10
Caution! * ESD A single static discharge can damage your card and cause
premature failure! Please follow all reasonable precautions to
prevent a static discharge such as grounding yourself by touching
any grounded surface prior to touching the card.
Hardware Installation
1. Do not install card into the computer until the software has been fully installed.
2. Turn OFF computer power AND unplug AC power from the system.
3. Remove the computer cover.
4. Remove the two (2) nuts retaining the strain relief brackets from the card, set one bracket
aside with the nuts.
5. Select an available location to install the card in an available 5V or 3.3V PCI expansion slot
(you may need to remove a backplate first). DO not plug the card into the slot yet…..
6. With the card in your hand or on the bench, feed ribbon cable(s) through the selected
computer backplate one at a time and plug onto the card header, starting closest to the
mounting bracket. When all cables are installed, re-install the strain relief bracket and nuts,
and tighten until snug. DO NOT OVERTIGHTEN!
7. Carefully plug the card into the slot and inspect for proper seating and fit. Make sure that the
card mounting bracket is properly screwed into place and that there is a positive chassis
ground.
8. Make connections from installed ribbon cables to the field equipment / wiring.
9. Check all connections and installations to ensure the system is ready to be turned on. Do not
turn on field power before turning on the computer as all outputs on the card will be
ON.
10. Replace the computer cover and turn ON the computer which should auto-detect the card
(depending on the operating system) and automatically finish installing the drivers.
11. Run PCIfind.exe to complete installing the card into the registry (for Windows only) and to
determine the assigned resources.
12. Run one of the provided sample programs that was copied to the newly created card directory
(from the CD) to test and validate your installation.
13. Once the card has been initialized and you’re sure the outputs are in a known state, external /
field power may now be turned on if desired.
The base address assigned by BIOS or the operating system can change each time new
hardware is installed into or removed from the computer. Please recheck PCIFind or Device
Manager if the hardware configuration is changed. Software you write can automatically
determine the base address of the card using a variety of methods depending on the
operating system. In DOS, the PCI\SOURCE directory shows the BIOS calls used to
determine the address and IRQ assigned to installed PCI devices. In Windows, the Windows
sample programs demonstrate querying the registry entries (created by PCIFind and
NTIOPCI.SYS during boot-up) to determine this same information.

Manual PCI-IDO-48A Series
11
Chapter 3: Option Selection
There are no user configurable options on this product.
Figure 3-1: Option Selection Map

Manual PCI-IDO-48A Series
12
Chapter 4: Address Selection
This card uses I/O addresses offset from the base address assigned by the PCIe bus. The
address spaces are defined in the programming section of this manual.
PCIe architecture is Plug-and-Play. This means that the BIOS or Operating System
determines the resources assigned to PCIe cards. As a result, you cannot set or change the
card's base address or IRQ level. You can only determine what the system has assigned.
The following information is for advanced users only:
The PCIe bus supports 64K of I/O address space, so your card's
addresses may be located anywhere in the 0000h to FFFFh range.
To determine the base address that has been assigned, run the PCIFind
utility program. This utility will display a list of all the cards
detected on the PCI/PCIe bus, the addresses assigned to each function
on each of the cards, and the respective IRQs.
Alternatively, Windows systems can be queried to determine which
resources were assigned. In these operating systems, you can use
either PCIFind, or the Device Manager utility from the System
Properties Applet of the control panel. The card is installed in the
Data Acquisition class of the Device Manager list. Selecting the
card, clicking Properties, and then selecting the Resources Tab will
display a list of the resources allocated to the card.
In Linux you can use the LSPCI command to determine this information.
A PCIFind.pl script is also provided which may simplify this task.
An example of how to locate PCIe card resources in DOS is provided
with in the PCI\SOURCE directory, under your installation directory.
This code runs in DOS, and uses the PCI defined interrupt BIOS calls
to query the PCI bus for card specific information. You will need the
Device ID and Vendor ID listed above to use this code.
The card uses more resources than you usually need be concerned with.
For clarity, PCIFind shows only the most commonly required
information.
For those who require it, be aware of the following:
BAR[0]: memory mapped PEX8311
BAR[1]: I/O mapped PEX8311
BAR[2]: I/O mapped card registers (←all most software needs)

Manual PCI-IDO-48A Series
13
Chapter 5: Programming
The base address is assigned by the computer system during installation and will fall on an
eight-byte boundary. The cards read and write functions are as follows:
Address
Write
Read
Base Address +0
Port 0 Bits 0-7
Base Address +1
Port 0 Bits 8-15
Base Address +2
Port 1 Bits 0-7
Base Address +3
Trigger Control
Trigger Status
Base Address +4
Port 1 Bits 8-15
Base Address +5
Port 2 Bits 0-7
Base Address +6
Port 2 Bits 8-15
Base Address +7
Trigger Over-run Count
Table 5-1: Register Address Map
Base Address + 0 (write) Port0 Low Byte
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
P0_7
P0_6
P0_5
P0_4
P0_3
P0_2
P0_1
P0_0
Writing to this address updates the data on Port0 bits 0-7. The data is updated instantly to the
outputs in Immediate Mode and updated on a rising edge of the External Trigger in External
Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger Modes.
Base Address + 1 (write) Port0 High Byte
Bit15
Bit14
Bit13
Bit12
Bit11
Bit10
Bit9
Bit8
P0_15
P0_14
P0_13
P0_12
P0_11
P0_10
P0_9
P0_8
Writing to this address updates the data on Port0 bits 8-15. The data is updated instantly to
the outputs in Immediate Mode and updated on a rising edge of the External Trigger in
External Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger
Modes.
Base Address + 2 (write) Port1 Low Byte
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
P1_7
P1_6
P1_5
P1_4
P1_3
P1_2
P1_1
P1_0
Writing to this address updates the data on Port1 bits 0-7. The data is updated instantly to the
outputs in Immediate Mode and updated on a rising edge of the External Trigger in External
Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger Modes.

Manual PCI-IDO-48A Series
14
Base Address + 3 (read/write) Trigger Control/Status
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
0
0
0
0
trigEvent
trigReset
updateMode
The trigEvent bit is read only and is set to a '1' with a rising edge of the External Trigger.
trigEvent is reset to a '0' on a read of Base Address + 3. The updateMode bit is read/write.
Writing a '0' sets updateMode to External Trigger Mode and a '1' to Immediate Mode. The
trigReset is read/write and only applies if updateMode is set to External Trigger Mode. Writing
a '0' to trigReset will cause both the outputs and the output's buffer to be reset to zeros on a
falling edge of the External Trigger. Writing a '1' causes the outputs and output's buffer to
remain unchanged on a falling edge of the External Trigger.
Base Address + 4 (write) Port1 High Byte
Bit15
Bit14
Bit13
Bit12
Bit11
Bit10
Bit9
Bit8
P1_15
P1_14
P1_13
P1_12
P1_11
P1_10
P1_9
P1_8
Writing to this address updates the data on Port1 bits 8-15. The data is updated instantly to
the outputs in Immediate Mode and updated on a rising edge of the External Trigger in
External Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger
Modes.
Base Address + 5 (write) Port2 Low Byte
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
P2_7
P2_6
P2_5
P2_4
P2_3
P2_2
P2_1
P2_0
Writing to this address updates the data on Port2 bits 0-7. The data is updated instantly to the
outputs in Immediate Mode and updated on a rising edge of the External Trigger in External
Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger Modes.
Base Address + 6 (write) Port2 High Byte
Bit15
Bit14
Bit13
Bit12
Bit11
Bit10
Bit9
Bit8
P2_15
P2_14
P2_13
P2_12
P2_11
P2_10
P2_9
P2_8
Writing to this address updates the data on Port2 bits 8-15. The data is updated instantly to
the outputs in Immediate Mode and updated on a rising edge of the External Trigger in
External Trigger Mode. Refer to Base Address + 3 for Immediate and External Trigger
Modes.
Base Address + 7 (read) Trigger Over-run Count
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
0
0
0
Cnt3
Cnt2
Cnt1
Cnt0
Reading from this address will return the number of times (0-15) a rising edge of the External
Trigger has occurred without writing to the outputs (Buffer Under-run Error).
The count value is reset to zero when read.

Manual PCI-IDO-48A Series
15
Chapter 6: Connector Pin Assignments
Three identical 50-pin headers are provided on the product; one for each 16-bit output group.
Port 0 (P2) is near the mounting bracket while Port 2 (P4) is at the far end of the card.
Connector pin assignments are in the following three tables.
Pin
Signal
Pin
Signal
1
Ground / Trigger Return
2
Bit 0 Return (-)
3
Bit 0 Out
4
Bit 0 Supply (+)
5
Bit 1 Return (-)
6
Bit 1 Out
7
Bit 1 Supply (+)
8
Bit 2 Return (-)
9
Bit 2 Out
10
Bit 2 Supply (+)
11
Bit 3 Return (-)
12
Bit 3 Out
13
Bit 3 Supply (+)
14
Bit 4 Return (-)
15
Bit 4 Out
16
Bit 4 Supply (+)
17
Bit 5 Return (-)
18
Bit 5 Out
19
Bit 5 Supply (+)
20
Bit 6 Return (-)
21
Bit 6 Out
22
Bit 6 Supply (+)
23
Bit 7 Return (-)
24
Bit 7 Out
25
Bit 7 Supply (+)
26
Bit 8 Return (-)
27
Bit 8 Out
28
Bit 8 Supply (+)
29
Bit 9 Return (-)
30
Bit 9 Out
31
Bit 9 Supply (+)
32
Bit 10 Return (-)
33
Bit 10 Out
34
Bit 10 Supply (+)
35
Bit 11 Return (-)
36
Bit 11 Out
37
Bit 11 Supply (+)
38
Bit 12 Return (-)
39
Bit 12 Out
40
Bit 12 Supply (+)
41
Bit 13 Return (-)
42
Bit 13 Out
43
Bit 13 Supply (+)
44
Bit 14 Return (-)
45
Bit 14 Out
46
Bit 14 Supply (+)
47
Bit 15 Return (-)
48
Bit 15 Out
49
Bit 15 Supply (+)
50
Ext. Trigger Input
Table 6-1: Port 0 Connector Pin Assignments (P2)

Manual PCI-IDO-48A Series
16
Pin
Signal
Pin
Signal
1
Ground
2
Bit 16 Return (-)
3
Bit 16 Out
4
Bit 16 Supply (+)
5
Bit 17 Return (-)
6
Bit 17 Out
7
Bit 17 Supply (+)
8
Bit 18 Return (-)
9
Bit 18 Out
10
Bit 18 Supply (+)
11
Bit 19 Return (-)
12
Bit 19 Out
13
Bit 19 Supply (+)
14
Bit 20 Return (-)
15
Bit 20 Out
16
Bit 20 Supply (+)
17
Bit 21 Return (-)
18
Bit 21 Out
19
Bit 21 Supply (+)
20
Bit 22 Return (-)
21
Bit 22 Out
22
Bit 22 Supply (+)
23
Bit 23 Return (-)
24
Bit 23 Out
25
Bit 23 Supply (+)
26
Bit 24 Return (-)
27
Bit 24 Out
28
Bit 24 Supply (+)
29
Bit 25 Return (-)
30
Bit 25 Out
31
Bit 25 Supply (+)
32
Bit 26 Return (-)
33
Bit 26 Out
34
Bit 26 Supply (+)
35
Bit 27 Return (-)
36
Bit 27 Out
37
Bit 27 Supply (+)
38
Bit 28 Return (-)
39
Bit 28 Out
40
Bit 28 Supply (+)
41
Bit 29 Return (-)
42
Bit 29 Out
43
Bit 29 Supply (+)
44
Bit 30 Return (-)
45
Bit 30 Out
46
Bit 30 Supply (+)
47
Bit 31 Return (-)
48
Bit 31 Out
49
Bit 31 Supply (+)
50
Ground
Table 6-2: Port 1 Connector Pin Assignments (P3)

Manual PCI-IDO-48A Series
17
Pin
Signal
Pin
Signal
1
Ground
2
Bit 32 Return (-)
3
Bit 32 Out
4
Bit 32 Supply (+)
5
Bit 33 Return (-)
6
Bit 33 Out
7
Bit 33 Supply (+)
8
Bit 34 Return (-)
9
Bit 34 Out
10
Bit 34 Supply (+)
11
Bit 35 Return (-)
12
Bit 35 Out
13
Bit 35 Supply (+)
14
Bit 36 Return (-)
15
Bit 36 Out
16
Bit 36 Supply (+)
17
Bit 37 Return (-)
18
Bit 37 Out
19
Bit 37 Supply (+)
20
Bit 38 Return (-)
21
Bit 38 Out
22
Bit 38 Supply (+)
23
Bit 39 Return (-)
24
Bit 39 Out
25
Bit 39 Supply (+)
26
Bit 40 Return (-)
27
Bit 40 Out
28
Bit 40 Supply (+)
29
Bit 41 Return (-)
30
Bit 41 Out
31
Bit 41 Supply (+)
32
Bit 42 Return (-)
33
Bit 42 Out
34
Bit 42 Supply (+)
35
Bit 43 Return (-)
36
Bit 43 Out
37
Bit 43 Supply (+)
38
Bit 44 Return (-)
39
Bit 44 Out
40
Bit 44 Supply (+)
41
Bit 45 Return (-)
42
Bit 45 Out
43
Bit 45 Supply (+)
44
Bit 46 Return (-)
45
Bit 46 Out
46
Bit 46 Supply (+)
47
Bit 47 Return (-)
48
Bit 47 Out
49
Bit 47 Supply (+)
50
Ground
Table 6-3: Port 2 Connector Pin Assignments (P4)

Manual PCI-IDO-48A Series
18
Chapter 7: Specifications
Outputs
Number of Channels: 48, 32, or 16
Load Voltage Range: 5VDC to 60VDC (Voltage supplied by User)
Load Current per Channel: 1A maximum steady state, 2A pulse (Note: Current may be
limited by the cable. Certain ribbon cables limit current
to 0.5A.)
Isolation: On-Card Channel-to-channel and channel-to-computer
(* see Note)
Switching Time: Turn-On 50µs
Turn-Off 5µs, inductive-spike protection via a diode
Switch Resistance: 0.4Ωwhen saturated
Switch Leakage Current: 100 to 300µA
Power Required +5VDC @ 245mA (48 bits)
External Trigger Input
Type: TTL; Pulled down to logic ground via 1k ohm resistor.
Active update on rising edge (in reference to logic ground,
requires a 2-wire connection, which is not isolated).
Configurable to reset outputs on falling edge.
High: 2.0V min.
Low: 0.8V max.
*Note on Isolation: Opto-Isolators and connectors are rated for at least 500V, but isolation voltage
breakdowns will vary and are affected by factors like cabling, spacing of pins, spacing between traces
on the PCB, humidity, dust and other environmental factors. This is a safety issue so a careful
approach is required. For CE certification, isolation was specified at 60V DC. The design intention
was to eliminate the influence of common mode. Use proper wiring techniques to minimize voltage
between channels and to ground. Tolerance of higher isolation voltage can be obtained on request by
applying a conformal coating to the board.
Environmental
Operating Temperature: 0°C to +70°C
Storage Temperature: -40°C to +150°C
Humidity: 5% to 90% RH, non-condensing
Board Dimensions: 6.875" (174.6mm) long, 4.2” ( 106.7mm) high

Manual PCI-IDO-48A Series
19
Customer Comments
If you experience any problems with this manual or just want to give us some feedback,
please email us at: [email protected]m. Please detail any errors you find and include
your mailing address so that we can send you any manual updates.
10623 Roselle Street, San Diego CA 92121
Tel. [phone] FAX [phone]
www.accesio.com