Comprehensive Product Summary – ADLINK DIN‑24P‑01 Isolated 24‑Channel Digital Input DIN Rail Board

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### 1. Product Overview

Product Name: DIN‑24P‑01
Model: DIN‑24P
Series: DIN‑24P/24R/24G Terminal Board Series
Article Number: DIN‑24P‑01
Manufacturer: ADLINK Technology Inc.
Product Type: 24‑channel opto‑isolated digital input termination board for DIN‑rail mounting
Revision: Manual Rev. 2.30 (April 12, 2000)
Manufacturer Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Website: [www.adlink.com.tw](http://www.adlink.com.tw)
Support Contacts:
- Sales & Service: service@adlink.com.tw
- Technical Support (NuDAQ): nudaq@adlink.com.tw
- NuDAM Support: nudam@adlink.com.tw
- NuIPC Support: nuipc@adlink.com.tw
- NuPRO Support: nupro@adlink.com.tw
- Software Support: sw@adlink.com.tw
- AMB Support: amb@adlink.com.tw
Telephone: +886‑2‑82265877
Fax: +886‑2‑82265717

The ADLINK DIN‑24P‑01 is a high‑reliability, industrial‑grade digital input interface board designed for DIN‑rail installation. It provides 24 optically isolated digital input channels, each equipped with LED indicators for real‑time signal monitoring. The board serves as a termination and isolation interface between field digital signals and data acquisition or control systems, ensuring electrical protection and noise immunity in harsh industrial environments.

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### 2. Key Features

- 24 Opto‑Isolated Digital Input Channels: Each channel is individually isolated using photo‑couplers to protect connected equipment from voltage transients and ground loops.
- High Isolation Voltage: Rated at 5 kVrms, providing robust electrical separation between field inputs and logic circuitry.
- Wide Input Voltage Range: Accepts logic high levels from +3 V DC to +24 V DC, supporting a variety of industrial sensors and switches.
- LED Status Indicators: 24 front‑panel LEDs display the ON/OFF state of each input channel for easy diagnostics.
- Dual 50‑Pin Connectors:
- CN5: Opto‑22 compatible 50‑pin flat cable connector for direct connection to ADLINK or third‑party digital I/O cards (e.g., ACL‑7122, ACL‑7124, PET‑48DIO, PCI‑7248, PCI‑7296).
- CN6: 50‑pin SCSI‑type connector for connection to digital I/O modules such as ADLINK ND‑6058.
- DIN‑Rail Mountable: Compact form factor (205 mm × 114 mm) designed for standard DIN‑rail installation in control cabinets.
- Configurable Input Jumpers: Each channel includes jumper settings to select between direct input or photo‑coupler isolation modes.
- Industrial‑Grade Design: Rugged PCB layout and terminal blocks suitable for factory automation, process control, and machine interfacing.
- Opto‑22 Compatibility: Ensures seamless integration with a wide range of ADLINK and third‑party DAQ and control systems.

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### 3. Technical Specifications

General Characteristics
- Number of Channels: 24 opto‑isolated digital inputs
- Isolation Voltage: 5000 Vrms (channel‑to‑system isolation)
- Input Type: Photo‑coupler isolated, active high logic
- Input Voltage Range:
- Logic “0”: < 0.8 V DC
- Logic “1”: +3 V DC – +24 V DC
- Input Current: 6.3 mA – 50 mA (depending on input voltage)
- Logic Definition:
- Logic “1” = Voltage input high (LED ON)
- Logic “0” = Voltage input low (LED OFF)
- Indication Display: 24 LEDs (color‑coded by port group)
- Port A: Yellow LEDs (CH0–CH7)
- Port B: Green LEDs (CH8–CH15)
- Port C: Red LEDs (CH16–CH23)

Physical Characteristics
- Dimensions: 205 mm (L) × 114 mm (W)
- Mounting: Standard DIN‑rail
- Connectors:
- CN5: 50‑pin Opto‑22 compatible flat cable header
- CN6: 50‑pin SCSI connector
- CN7, CN8: Terminal blocks for field wiring
- Material: Industrial‑grade FR‑4 PCB with protective coating
- Weight: Approx. 0.4 kg (typical)

Electrical Characteristics
- Power Supply: +5 V DC logic supply (from host board)
- Input Protection: Opto‑isolation and current‑limiting resistors (4.7 kΩ typical)
- Signal Type: TTL/CMOS compatible logic levels via isolation interface

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### 4. Functionality

The DIN‑24P‑01 functions as an isolated digital input interface between field devices and a host data acquisition or control system. Each input channel receives a DC signal from an external sensor, switch, or contact. The signal passes through an opto‑coupler, which converts the electrical input into an optical signal, providing galvanic isolation. The optical signal is then converted back to an electrical logic level for the host system.

Typical Use Cases and Applications:
- Industrial automation and process control systems
- Machine status monitoring and safety interlocks
- PLC and SCADA digital input expansion
- Data acquisition systems requiring high isolation
- Signal conditioning for sensors, limit switches, and pushbuttons
- Electrical isolation between field wiring and computer‑based I/O cards

Compatibility:
- Directly connects to ADLINK digital I/O cards such as:
- ACL‑7122, ACL‑7124
- PET‑48DIO
- PCI‑7248, PCI‑7296
- Compatible with digital I/O modules using 50‑pin SCSI connectors (e.g., ND‑6058).
- Opto‑22 pinout ensures interoperability with a wide range of industrial I/O systems.

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### 5. Components & Accessories

Included Components:
- DIN‑24P‑01 main board
- Two terminal blocks (CN7, CN8) for field input wiring
- 50‑pin flat cable header (CN5)
- 50‑pin SCSI connector (CN6)
- 24 LED indicators (status display)
- Jumper blocks for input configuration (JP1–JP24)

Optional Accessories:
- 50‑pin flat ribbon cable for connection to Opto‑22 compatible boards
- 50‑pin SCSI cable for connection to ND‑6058 or equivalent modules
- DIN‑rail mounting clips and screws
- External power supply (if required by host system)

Connector Pin Assignments:
- CN5 (Opto‑22 Compatible Connector):
- Port A: Data 0–7 (CH0–CH7)
- Port B: Data 0–7 (CH8–CH15)
- Port C: Data 0–7 (CH16–CH23)
- +5 V reference line
- CN6 (SCSI Connector): 50‑pin interface matching ND‑6058 pinout
- CN7/CN8 (Terminal Blocks):
- Each channel provides +/– terminals for field input wiring
- Channels grouped as follows:
- CN7: CH12–CH23
- CN8: CH0–CH11

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### 6. Installation & Setup

Mounting Requirements:
- Designed for DIN‑rail installation in control panels or industrial enclosures.
- Ensure adequate ventilation and clearance for cable connections.

Electrical Setup:
1. Power Source: The board receives +5 V DC logic power from the connected host I/O card.
2. Field Wiring: Connect external input devices (switches, sensors, contacts) to CN7 and CN8 terminal blocks. Observe polarity markings (+/–).
3. Host Connection:
- Use CN5 for flat‑cable connection to Opto‑22 compatible DAQ boards.
- Use CN6 for SCSI‑type connection to ND‑6058 or similar modules.
4. Jumper Configuration:
- Each input channel includes two mini jumpers to select between direct input or photo‑coupler isolation.
- Default configuration: isolated input mode.
5. LED Verification:
- Apply input signals and verify LED indicators correspond to channel states.

Environmental Conditions:
- Operating temperature: 0 °C – +50 °C (typical industrial range)
- Storage temperature: –20 °C – +70 °C
- Humidity: 10 % – 90 % RH, non‑condensing

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### 7. Performance & Capabilities

Input Response:
- Fast optical response suitable for digital signal acquisition up to several kHz (depending on host system).
- High noise immunity due to optical isolation and input filtering.

Capacity:
- 24 independent input channels, each isolated from the system and from each other.

Efficiency:
- Low power consumption due to LED‑based optical isolation.
- Minimal signal distortion and high reliability over extended operation.

Limitations:
- Input voltage limited to +24 V DC maximum.
- Not designed for AC input signals or analog measurement.
- Requires host DAQ or digital I/O card for data acquisition and control.

Reliability:
- Industrial‑grade components rated for continuous operation.
- Optical isolation prevents damage from transient surges or ground potential differences.

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### 8. Standards & Compliance

Certifications and Compliance:
- Designed and manufactured by ADLINK Technology Inc. under ISO‑compliant quality systems.
- Meets industrial safety and EMC design guidelines for digital I/O interface boards.
- Opto‑22 compatibility ensures adherence to widely accepted I/O interface standards.
- Relay and isolation components rated for high dielectric strength (5 kVrms).

Regulatory Notes:
- Product specifications subject to change without notice to improve reliability and design.
- All trademarks (TB‑24P, TB‑24R, TB‑16P8R, DIN‑24P, DIN‑24R, DIN‑24G) are registered trademarks of ADLINK Technology Inc.
- Other product names mentioned are trademarks or registered trademarks of their respective companies.

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### 9. Additional Information

Warranty:
- Duration: 1‑year limited warranty from the confirmed date of purchase.
- Coverage: Free from defects in materials and workmanship under normal use.
- Remedy: ADLINK will repair or replace defective items at its discretion upon written notice.
- Exclusions:
- Damage due to misuse, modification, or operation beyond specifications.
- Equipment altered or repaired outside ADLINK facilities.
- Expired warranty or missing proof of purchase.
- Return Policy:
- Equipment must be securely packaged and shipped prepaid.
- Customer responsible for parts and labor if warranty period has expired.

Maintenance:
- Periodically inspect terminal connections for tightness and cleanliness.
- Avoid exposure to excessive dust, moisture, or vibration.
- Verify LED indicators and jumper settings during routine maintenance.

Technical Support & Updates:
- Firmware and documentation updates available through ADLINK’s website.
- Technical assistance provided via email or phone through ADLINK’s regional support centers.

Service Commitment:
ADLINK emphasizes customer satisfaction and provides prompt technical and after‑sales support. Users are encouraged to provide detailed system information (OS, motherboard, CPU, chipset, BIOS, and peripheral configuration) when requesting assistance to ensure accurate troubleshooting and service.

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### Summary

The ADLINK DIN‑24P‑01 is a robust, opto‑isolated 24‑channel digital input board engineered for industrial automation and data acquisition systems. Its high isolation voltage (5 kVrms), wide input range (+3 V DC – +24 V DC), and LED status indicators make it ideal for interfacing field signals with computer‑based control hardware. The dual 50‑pin connectors (Opto‑22 and SCSI) provide flexible connectivity to ADLINK’s NuDAQ, NuDAM, and PCI digital I/O cards, while the DIN‑rail form factor ensures easy integration into control panels. With its configurable input jumpers, durable construction, and comprehensive support from ADLINK Technology Inc., the DIN‑24P‑01 delivers reliable, noise‑immune digital input interfacing for demanding industrial environments.