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- 48 Programmable Digital I/O Lines: Configurable as input or output in two groups of 24 channels each.
- 8255 Mode 0 Compatibility: Emulates two Intel 8255 PPIs for flexible I/O configuration.
- High Output Drive Capability: Up to 24 mA sink and 15 mA source per channel.
- Low Input Loading: 0.2 mA at 0.4 V ensures minimal signal distortion.
- Integrated Event Counter: One 16‑bit programmable counter for event counting up to 2 MHz.
- Programmable Timer Pacer: One 32‑bit timer (two cascaded 16‑bit counters) with selectable 32.768 kHz or 2 MHz clock sources.
- Interrupt Support: Selectable IRQ3–IRQ15 (9 levels) for event, timer, or input‑triggered interrupts.
- Opto‑22 Connector Compatibility: Two 50‑pin connectors (CN1, CN2) with standard Opto‑22 pinout for easy integration with industrial I/O modules.
- Compact ISA Form Factor: Occupies only two consecutive I/O addresses, allowing multiple cards per system.
- TTL Logic Compatibility: All I/O lines are TTL‑level compatible using 74LS244 buffer/driver circuits.
- Software Support: Includes DOS and Windows drivers, C/C++ libraries, and LabVIEW driver (ACLS‑LVIEW).
- Flexible Jumper Configuration: Adjustable base address, pull‑up/pull‑down resistors, interrupt levels, and clock sources.
- 8255 Mode 0 Compatibility: Emulates two Intel 8255 PPIs for flexible I/O configuration.
- High Output Drive Capability: Up to 24 mA sink and 15 mA source per channel.
- Low Input Loading: 0.2 mA at 0.4 V ensures minimal signal distortion.
- Integrated Event Counter: One 16‑bit programmable counter for event counting up to 2 MHz.
- Programmable Timer Pacer: One 32‑bit timer (two cascaded 16‑bit counters) with selectable 32.768 kHz or 2 MHz clock sources.
- Interrupt Support: Selectable IRQ3–IRQ15 (9 levels) for event, timer, or input‑triggered interrupts.
- Opto‑22 Connector Compatibility: Two 50‑pin connectors (CN1, CN2) with standard Opto‑22 pinout for easy integration with industrial I/O modules.
- Compact ISA Form Factor: Occupies only two consecutive I/O addresses, allowing multiple cards per system.
- TTL Logic Compatibility: All I/O lines are TTL‑level compatible using 74LS244 buffer/driver circuits.
- Software Support: Includes DOS and Windows drivers, C/C++ libraries, and LabVIEW driver (ACLS‑LVIEW).
- Flexible Jumper Configuration: Adjustable base address, pull‑up/pull‑down resistors, interrupt levels, and clock sources.
Comprehensive Product Summary: ADLINK PET‑48DIO 48‑bit Digital I/O Card
### 1. Product Overview
Product Name: PET‑48DIO
Model: PET‑48DIO
Series: NuDAQ ISA‑Bus Digital I/O and Timer/Event Cards
Article Number: PET‑48DIO
Manufacturer: ADLINK Technology Inc.
Manufacturer Website: [www.adlink.com.tw](http://www.adlink.com.tw)
Product Category: Programmable Digital Input/Output (DIO) and Timer/Event Counter Card for PC/ISA Bus Systems
Manual Revision: 3.22 (April 17, 2000)
The ADLINK PET‑48DIO is a 48‑bit programmable digital input/output expansion card designed for IBM PC and compatible systems. It provides high‑performance digital I/O control, event counting, and timer‑based interrupt generation. Fully compatible with Intel 8255 Mode 0 operation, the PET‑48DIO integrates two 24‑bit I/O groups, a 16‑bit event counter, and a 32‑bit programmable timer pacer. It is part of ADLINK’s NuDAQ family of industrial data acquisition and control products.
### 2. Key Features
- 48 Programmable Digital I/O Lines: Configurable as input or output in two groups of 24 channels each.
- 8255 Mode 0 Compatibility: Emulates two Intel 8255 PPIs for flexible I/O configuration.
- High Output Drive Capability: Up to 24 mA sink and 15 mA source per channel.
- Low Input Loading: 0.2 mA at 0.4 V ensures minimal signal distortion.
- Integrated Event Counter: One 16‑bit programmable counter for event counting up to 2 MHz.
- Programmable Timer Pacer: One 32‑bit timer (two cascaded 16‑bit counters) with selectable 32.768 kHz or 2 MHz clock sources.
- Interrupt Support: Selectable IRQ3–IRQ15 (9 levels) for event, timer, or input‑triggered interrupts.
- Opto‑22 Connector Compatibility: Two 50‑pin connectors (CN1, CN2) with standard Opto‑22 pinout for easy integration with industrial I/O modules.
- Compact ISA Form Factor: Occupies only two consecutive I/O addresses, allowing multiple cards per system.
- TTL Logic Compatibility: All I/O lines are TTL‑level compatible using 74LS244 buffer/driver circuits.
- Software Support: Includes DOS and Windows drivers, C/C++ libraries, and LabVIEW driver (ACLS‑LVIEW).
- Flexible Jumper Configuration: Adjustable base address, pull‑up/pull‑down resistors, interrupt levels, and clock sources.
### 3. Technical Specifications
General:
- Digital I/O Lines: 48 programmable (2 × 24 channels)
- I/O Groups: Group 0 (PA0, PB0, PC0), Group 1 (PA1, PB1, PC1)
- I/O Address Space: 2 consecutive addresses (default base address = 300h)
- IRQ Levels: Selectable IRQ3–IRQ15 (default = IRQ5)
- Connectors: 2 × 50‑pin Opto‑22 compatible IDC male headers (CN1, CN2)
- Board Dimensions: 170 mm × 121 mm
- Mounting: Standard ISA slot
Digital Input:
- Logic 0: –0.5 V to 0.8 V
- Logic 1: 2.0 V to 5.0 V
- Input Loading: 0.2 mA @ 0.4 V
- Input Hysteresis: 0.2 V – 0.4 V
- Frequency Response: 500 kHz
Digital Output:
- Logic 0 Sink Current: 24 mA max
- Logic 1 Source Current: 15 mA max
- Drive Capability: 15 TTL gates per output
- Frequency Response: 500 kHz
Event Counter:
- Type: 16‑bit programmable counter
- Frequency Range: DC – 2 MHz
- Count Range: 1 – 65,536
- Trigger Edge: Selectable rising or falling edge
Timer Pacer:
- Type: 32‑bit (two cascaded 16‑bit counters)
- Clock Sources: 32.768 kHz or 2 MHz (jumper selectable)
- Frequency Divider: Programmable
- Timer Range:
- 32.768 kHz → 0.000122 s – 131,072 s
- 2 MHz → 0.000002 s – 2147.4836 s
Interrupt Sources:
- Event counter overflow
- Timer timeout
- Programmable input port interrupts (PC0D3, PC0D7, PC1D3, PC1D7)
Electrical Characteristics:
- Logic Standard: TTL
- Pull‑Up/Pull‑Down: Configurable via jumpers (JP1, JP2, JP4, JP6, JP7, JP9)
- Power Supply: +5 V DC from ISA bus
- Optional +12 V or GND on CN1/CN2 pin 2 & 4 (JP3, JP8 selectable)
### 4. Functionality
The PET‑48DIO operates as a dual‑8255‑compatible digital I/O interface card. Each 8255 emulation provides three 8‑bit ports (A, B, C) that can be individually configured for input or output. The card supports 16 different I/O configurations under Mode 0 operation. Outputs are latched, while inputs are direct‑read.
Use Cases and Applications:
- Industrial automation and process control
- Machine status monitoring and control
- Contact closure and switch monitoring
- BCD data interface (input/output)
- Digital signal interfacing between PLCs and PCs
- Event counting and timing applications
- Real‑time interrupt generation for control systems
Compatibility:
- IBM PC/AT and compatible ISA‑bus systems
- Opto‑22 I/O racks (8, 16, 24 channels)
- Supported OS: MS‑DOS, Windows 3.1/95/98/NT
- Supported Software: Borland C/C++, Visual C++, Visual Basic, Delphi, LabVIEW
### 5. Components & Accessories
Included Items:
- PET‑48DIO 48‑bit DIO Event and Timer Board
- ADLINK NuDAQ Software CD (includes DOS utilities, C libraries, ACLS‑DLL1 demo, and LabVIEW driver)
- User’s Manual
Optional Accessories:
- Opto‑22 compatible terminal boards and cables
- External relay or solid‑state I/O modules
- Shielded 50‑pin ribbon cables
Connectors:
- CN1: 50‑pin IDC male header for Group 1 (PA1, PB1, PC1)
- CN2: 50‑pin IDC male header for Group 0 (PA0, PB0, PC0)
- Pin 2 & 4 configurable as +12 V or GND (JP3, JP8)
- +5 V available on pin 1
### 6. Installation & Setup
System Requirements:
- IBM PC/AT or compatible with available ISA slot
- +5 V DC supply from bus
- Operating system: DOS or Windows 95/98/NT
Installation Steps:
1. Power off the PC and discharge static electricity.
2. Use an anti‑static mat and wrist strap during handling.
3. Insert the PET‑48DIO into an available ISA slot.
4. Configure jumpers and DIP switches as required.
5. Connect external I/O devices via CN1/CN2.
6. Power on the system and install software drivers.
Configuration Options:
- Base Address (SW1): 8‑position DIP switch; default = 300h.
- IRQ Level (JP5): Selectable IRQ3–IRQ15; default = IRQ5.
- Pull‑Up/Pull‑Down (JP1, JP2, JP4, JP6, JP7, JP9): Choose +5 V, GND, or none.
- Timer Clock Source (JP12): 32.768 kHz or 2 MHz (default = 2 MHz).
- Timer Interrupt Enable (JP10): Enable/disable timer interrupt.
- Event Counter Interrupt (JP11): Enable/disable event interrupt.
- Programmable Interrupt Inputs (JP13, JP14): Configure PC0D3/PC0D7 and PC1D3/PC1D7 for rising/falling edge triggers.
- CN1/CN2 Power Pins (JP3, JP8): Select +12 V or GND for pin 2 & 4.
### 7. Performance & Capabilities
Speed and Frequency:
- Digital I/O switching up to 500 kHz
- Event counting up to 2 MHz
- Timer resolution as fine as 2 µs (2 MHz clock)
Capacity:
- 48 I/O channels, individually programmable
- 16‑bit event counter (65,536 counts)
- 32‑bit timer (two cascaded 16‑bit counters)
Efficiency:
- Minimal I/O address usage (2 bytes)
- Low power consumption from ISA bus
- High drive capability for direct TTL interfacing
Limitations:
- ISA‑bus interface (not PCI/PCIe)
- No onboard isolation (requires external Opto‑22 modules for isolation)
- Software drivers limited to DOS/Windows NT era systems
### 8. Standards & Compliance
- Bus Interface: ISA‑Bus compatible
- Logic Standard: TTL (Transistor‑Transistor Logic)
- Connector Standard: Opto‑22 50‑pin IDC
- Electrical Safety: Designed for low‑voltage digital control applications
- Software Interface: Compatible with ADLINK ACLS‑DLL1 and ACLS‑LVIEW drivers
- Regulatory Compliance: Manufactured under ADLINK quality control standards (Taiwan, R.O.C.)
### 9. Additional Information
Warranty:
- Duration: 1 year from date of purchase
- Coverage: Free from defects in materials and workmanship
- Exclusions: Damage from misuse, modification, or operation beyond specifications; altered serial numbers; expired warranty period
- Remedy: Repair or replacement at ADLINK’s discretion
- Return Policy: Prepaid shipping required; proof of purchase necessary
Technical Support:
- Sales & Service: service@adlink.com.tw
- NuDAQ Technical Support: nudaq@adlink.com.tw
- Software Support: sw@adlink.com.tw
- Telephone: +886‑2‑8226‑5877
- Fax: +886‑2‑8226‑5717
- Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Maintenance:
- Handle with anti‑static precautions.
- Avoid exposure to moisture or high temperature.
- Verify jumper and DIP switch settings before power‑up.
- Periodically inspect connectors and reseat socketed ICs if necessary.
Software Updates:
- Available through ADLINK’s website or authorized distributors.
- ACLS‑DLL1 and ACLS‑LVIEW provide updated drivers and libraries for supported environments.
### Summary
The ADLINK PET‑48DIO is a robust, industrial‑grade digital I/O and timer/event card engineered for ISA‑bus PCs. With 48 programmable TTL‑level I/O channels, a 16‑bit event counter, and a 32‑bit programmable timer, it delivers precise digital control and timing capabilities for automation, monitoring, and data acquisition systems. Its compatibility with Intel 8255 Mode 0, Opto‑22 connectors, and multiple interrupt sources makes it a versatile solution for legacy industrial control applications. The PET‑48DIO’s flexible jumper configuration, high drive capacity, and comprehensive software support ensure reliable integration into a wide range of digital interfacing tasks.
### 1. Product Overview
Product Name: PET‑48DIO
Model: PET‑48DIO
Series: NuDAQ ISA‑Bus Digital I/O and Timer/Event Cards
Article Number: PET‑48DIO
Manufacturer: ADLINK Technology Inc.
Manufacturer Website: [www.adlink.com.tw](http://www.adlink.com.tw)
Product Category: Programmable Digital Input/Output (DIO) and Timer/Event Counter Card for PC/ISA Bus Systems
Manual Revision: 3.22 (April 17, 2000)
The ADLINK PET‑48DIO is a 48‑bit programmable digital input/output expansion card designed for IBM PC and compatible systems. It provides high‑performance digital I/O control, event counting, and timer‑based interrupt generation. Fully compatible with Intel 8255 Mode 0 operation, the PET‑48DIO integrates two 24‑bit I/O groups, a 16‑bit event counter, and a 32‑bit programmable timer pacer. It is part of ADLINK’s NuDAQ family of industrial data acquisition and control products.
### 2. Key Features
- 48 Programmable Digital I/O Lines: Configurable as input or output in two groups of 24 channels each.
- 8255 Mode 0 Compatibility: Emulates two Intel 8255 PPIs for flexible I/O configuration.
- High Output Drive Capability: Up to 24 mA sink and 15 mA source per channel.
- Low Input Loading: 0.2 mA at 0.4 V ensures minimal signal distortion.
- Integrated Event Counter: One 16‑bit programmable counter for event counting up to 2 MHz.
- Programmable Timer Pacer: One 32‑bit timer (two cascaded 16‑bit counters) with selectable 32.768 kHz or 2 MHz clock sources.
- Interrupt Support: Selectable IRQ3–IRQ15 (9 levels) for event, timer, or input‑triggered interrupts.
- Opto‑22 Connector Compatibility: Two 50‑pin connectors (CN1, CN2) with standard Opto‑22 pinout for easy integration with industrial I/O modules.
- Compact ISA Form Factor: Occupies only two consecutive I/O addresses, allowing multiple cards per system.
- TTL Logic Compatibility: All I/O lines are TTL‑level compatible using 74LS244 buffer/driver circuits.
- Software Support: Includes DOS and Windows drivers, C/C++ libraries, and LabVIEW driver (ACLS‑LVIEW).
- Flexible Jumper Configuration: Adjustable base address, pull‑up/pull‑down resistors, interrupt levels, and clock sources.
### 3. Technical Specifications
General:
- Digital I/O Lines: 48 programmable (2 × 24 channels)
- I/O Groups: Group 0 (PA0, PB0, PC0), Group 1 (PA1, PB1, PC1)
- I/O Address Space: 2 consecutive addresses (default base address = 300h)
- IRQ Levels: Selectable IRQ3–IRQ15 (default = IRQ5)
- Connectors: 2 × 50‑pin Opto‑22 compatible IDC male headers (CN1, CN2)
- Board Dimensions: 170 mm × 121 mm
- Mounting: Standard ISA slot
Digital Input:
- Logic 0: –0.5 V to 0.8 V
- Logic 1: 2.0 V to 5.0 V
- Input Loading: 0.2 mA @ 0.4 V
- Input Hysteresis: 0.2 V – 0.4 V
- Frequency Response: 500 kHz
Digital Output:
- Logic 0 Sink Current: 24 mA max
- Logic 1 Source Current: 15 mA max
- Drive Capability: 15 TTL gates per output
- Frequency Response: 500 kHz
Event Counter:
- Type: 16‑bit programmable counter
- Frequency Range: DC – 2 MHz
- Count Range: 1 – 65,536
- Trigger Edge: Selectable rising or falling edge
Timer Pacer:
- Type: 32‑bit (two cascaded 16‑bit counters)
- Clock Sources: 32.768 kHz or 2 MHz (jumper selectable)
- Frequency Divider: Programmable
- Timer Range:
- 32.768 kHz → 0.000122 s – 131,072 s
- 2 MHz → 0.000002 s – 2147.4836 s
Interrupt Sources:
- Event counter overflow
- Timer timeout
- Programmable input port interrupts (PC0D3, PC0D7, PC1D3, PC1D7)
Electrical Characteristics:
- Logic Standard: TTL
- Pull‑Up/Pull‑Down: Configurable via jumpers (JP1, JP2, JP4, JP6, JP7, JP9)
- Power Supply: +5 V DC from ISA bus
- Optional +12 V or GND on CN1/CN2 pin 2 & 4 (JP3, JP8 selectable)
### 4. Functionality
The PET‑48DIO operates as a dual‑8255‑compatible digital I/O interface card. Each 8255 emulation provides three 8‑bit ports (A, B, C) that can be individually configured for input or output. The card supports 16 different I/O configurations under Mode 0 operation. Outputs are latched, while inputs are direct‑read.
Use Cases and Applications:
- Industrial automation and process control
- Machine status monitoring and control
- Contact closure and switch monitoring
- BCD data interface (input/output)
- Digital signal interfacing between PLCs and PCs
- Event counting and timing applications
- Real‑time interrupt generation for control systems
Compatibility:
- IBM PC/AT and compatible ISA‑bus systems
- Opto‑22 I/O racks (8, 16, 24 channels)
- Supported OS: MS‑DOS, Windows 3.1/95/98/NT
- Supported Software: Borland C/C++, Visual C++, Visual Basic, Delphi, LabVIEW
### 5. Components & Accessories
Included Items:
- PET‑48DIO 48‑bit DIO Event and Timer Board
- ADLINK NuDAQ Software CD (includes DOS utilities, C libraries, ACLS‑DLL1 demo, and LabVIEW driver)
- User’s Manual
Optional Accessories:
- Opto‑22 compatible terminal boards and cables
- External relay or solid‑state I/O modules
- Shielded 50‑pin ribbon cables
Connectors:
- CN1: 50‑pin IDC male header for Group 1 (PA1, PB1, PC1)
- CN2: 50‑pin IDC male header for Group 0 (PA0, PB0, PC0)
- Pin 2 & 4 configurable as +12 V or GND (JP3, JP8)
- +5 V available on pin 1
### 6. Installation & Setup
System Requirements:
- IBM PC/AT or compatible with available ISA slot
- +5 V DC supply from bus
- Operating system: DOS or Windows 95/98/NT
Installation Steps:
1. Power off the PC and discharge static electricity.
2. Use an anti‑static mat and wrist strap during handling.
3. Insert the PET‑48DIO into an available ISA slot.
4. Configure jumpers and DIP switches as required.
5. Connect external I/O devices via CN1/CN2.
6. Power on the system and install software drivers.
Configuration Options:
- Base Address (SW1): 8‑position DIP switch; default = 300h.
- IRQ Level (JP5): Selectable IRQ3–IRQ15; default = IRQ5.
- Pull‑Up/Pull‑Down (JP1, JP2, JP4, JP6, JP7, JP9): Choose +5 V, GND, or none.
- Timer Clock Source (JP12): 32.768 kHz or 2 MHz (default = 2 MHz).
- Timer Interrupt Enable (JP10): Enable/disable timer interrupt.
- Event Counter Interrupt (JP11): Enable/disable event interrupt.
- Programmable Interrupt Inputs (JP13, JP14): Configure PC0D3/PC0D7 and PC1D3/PC1D7 for rising/falling edge triggers.
- CN1/CN2 Power Pins (JP3, JP8): Select +12 V or GND for pin 2 & 4.
### 7. Performance & Capabilities
Speed and Frequency:
- Digital I/O switching up to 500 kHz
- Event counting up to 2 MHz
- Timer resolution as fine as 2 µs (2 MHz clock)
Capacity:
- 48 I/O channels, individually programmable
- 16‑bit event counter (65,536 counts)
- 32‑bit timer (two cascaded 16‑bit counters)
Efficiency:
- Minimal I/O address usage (2 bytes)
- Low power consumption from ISA bus
- High drive capability for direct TTL interfacing
Limitations:
- ISA‑bus interface (not PCI/PCIe)
- No onboard isolation (requires external Opto‑22 modules for isolation)
- Software drivers limited to DOS/Windows NT era systems
### 8. Standards & Compliance
- Bus Interface: ISA‑Bus compatible
- Logic Standard: TTL (Transistor‑Transistor Logic)
- Connector Standard: Opto‑22 50‑pin IDC
- Electrical Safety: Designed for low‑voltage digital control applications
- Software Interface: Compatible with ADLINK ACLS‑DLL1 and ACLS‑LVIEW drivers
- Regulatory Compliance: Manufactured under ADLINK quality control standards (Taiwan, R.O.C.)
### 9. Additional Information
Warranty:
- Duration: 1 year from date of purchase
- Coverage: Free from defects in materials and workmanship
- Exclusions: Damage from misuse, modification, or operation beyond specifications; altered serial numbers; expired warranty period
- Remedy: Repair or replacement at ADLINK’s discretion
- Return Policy: Prepaid shipping required; proof of purchase necessary
Technical Support:
- Sales & Service: service@adlink.com.tw
- NuDAQ Technical Support: nudaq@adlink.com.tw
- Software Support: sw@adlink.com.tw
- Telephone: +886‑2‑8226‑5877
- Fax: +886‑2‑8226‑5717
- Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Maintenance:
- Handle with anti‑static precautions.
- Avoid exposure to moisture or high temperature.
- Verify jumper and DIP switch settings before power‑up.
- Periodically inspect connectors and reseat socketed ICs if necessary.
Software Updates:
- Available through ADLINK’s website or authorized distributors.
- ACLS‑DLL1 and ACLS‑LVIEW provide updated drivers and libraries for supported environments.
### Summary
The ADLINK PET‑48DIO is a robust, industrial‑grade digital I/O and timer/event card engineered for ISA‑bus PCs. With 48 programmable TTL‑level I/O channels, a 16‑bit event counter, and a 32‑bit programmable timer, it delivers precise digital control and timing capabilities for automation, monitoring, and data acquisition systems. Its compatibility with Intel 8255 Mode 0, Opto‑22 connectors, and multiple interrupt sources makes it a versatile solution for legacy industrial control applications. The PET‑48DIO’s flexible jumper configuration, high drive capacity, and comprehensive software support ensure reliable integration into a wide range of digital interfacing tasks.
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48dio Manual.pdf
Manual
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