Comprehensive Product Summary: ADLINK DIN-24R/24-01 Isolated 24 DO Relay (24V) DIN Rail Board (230VAC/2A)

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### 1. Product Overview

Product Name: DIN-24R/24-01
Model: DIN-24R/24
Series: DIN-24 Series (DIN-24P / DIN-24R / DIN-24G)
Article Number: DIN-24R/24-01
Manufacturer: ADLINK Technology Inc.
Product Type: 24-channel isolated relay output DIN-rail terminal board
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)

The ADLINK DIN-24R/24-01 is a high-density, industrial-grade relay output terminal board designed for DIN-rail mounting. It provides 24 isolated relay outputs with LED status indicators, supporting both AC and DC load switching. The board is engineered for integration with ADLINK’s NuDAQ and NuDAM data acquisition systems and other Opto-22 compatible digital I/O modules.

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### 2. Key Features

- 24 Isolated Relay Outputs: Provides 24 independent SPDT (Single Pole Double Throw) relay channels for flexible control of external devices.
- High Voltage and Current Handling: Each relay supports up to 250 VAC or 220 VDC switching voltage and 2 A switching current.
- DIN-Rail Mountable: Compact 205 × 114 mm form factor designed for standard DIN-rail installation in industrial control panels.
- Opto-22 Compatibility: Equipped with a 50-pin Opto-22 compatible connector (CN6) and a 50-pin SCSI connector (CN7) for direct interface with digital I/O boards such as ACL-7122, ACL-7124, PET-48DIO, PCI-7248/96, and ND-6058.
- Status Indication: 24 on-board LEDs provide real-time visual feedback of relay activation status.
- Isolated Design: Electrical isolation between control and load circuits enhances system reliability and protects host devices from voltage transients.
- Flexible Power Options: Available in 12 VDC (DIN-24R/12) and 24 VDC (DIN-24R/24) coil voltage variants.
- High Reliability Relays: Utilizes high-sensitivity miniature relays rated for 110 VDC surge withstand capability.
- Comprehensive Connectivity: Dual terminal blocks (J1, J2) for field wiring, plus dedicated power input connector (CN9).
- Industrial Durability: Designed for continuous operation in industrial automation, process control, and data acquisition environments.

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### 3. Technical Specifications

General Specifications:
- Relay Type: High-sensitivity miniature relay, surge withstand 110 VDC / 125 VAC
- Relay Form: SPDT (Single Pole Double Throw)
- Number of Channels: 24 independent relay outputs
- Isolation Voltage: 1500 V FCC surge withstand

Electrical Ratings:
- Max. Switching Power: 60 W (DC) / 125 VA (AC)
- Max. Switching Voltage: 220 VDC / 250 VAC
- Max. Switching Current: 2 A (DC or AC)
- Max. Carrying Current: 3 A (DC or AC)
- UL/CSA Ratings:
- 0.6 A @ 125 VAC
- 0.6 A @ 110 VDC
- 2 A @ 30 VDC

Coil Voltage Options:
- DIN-24R/12: 12 VDC
- DIN-24R/24: 24 VDC

Power Supply Connector (CN9):
- +24V (for DIN-24R/24)
- +12V (for DIN-24R/12)
- GND

Indicators:
- 24 LEDs (Red, Yellow, Green) corresponding to each output channel
- Logic “1” → LED ON
- Logic “0” → LED OFF

Connectors:
- J1, J2: Terminal blocks for relay outputs (each channel has Common, Normally Closed, Normally Open contacts)
- CN6: 50-pin Opto-22 compatible connector
- CN7: 50-pin SCSI connector for ND-6058 or equivalent DIO boards
- CN9: Power input connector

Physical Characteristics:
- Dimensions: 205 mm (L) × 114 mm (W)
- Mounting: DIN-rail compatible
- Weight: Approx. 400–500 g (typical, depending on configuration)
- Material: Industrial-grade PCB with protective coating and terminal block connectors

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### 4. Functionality

The DIN-24R/24-01 functions as a relay output expansion interface for digital I/O systems. Each of the 24 channels can independently control external loads such as solenoids, lamps, contactors, or other actuators.

Operating Principle:
- The board receives digital output signals from a host controller or DAQ card via the 50-pin Opto-22 or SCSI interface.
- Each digital signal energizes a corresponding relay coil, closing or opening the SPDT contact pair.
- The relay contacts switch external AC or DC loads, providing galvanic isolation between the control logic and the load circuit.
- LED indicators display the ON/OFF state of each relay channel for easy diagnostics.

Typical Applications:
- Industrial automation and process control
- Machine control and equipment interlocking
- PLC and DAQ system output expansion
- Signal switching and load control in test systems
- Remote I/O control in distributed monitoring systems

Compatibility:
- Fully compatible with ADLINK’s NuDAQ, NuDAM, and PCI-based digital I/O cards (e.g., ACL-7122, ACL-7124, PCI-7248, PCI-7296)
- Supports Opto-22 standard pinout for broad interoperability with third-party I/O modules

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### 5. Components & Accessories

Included Components:
- DIN-24R/24-01 relay output board
- Integrated terminal blocks (J1, J2) for field wiring
- 50-pin Opto-22 compatible connector (CN6)
- 50-pin SCSI connector (CN7)
- Power input connector (CN9)
- On-board LED indicators for each channel

Optional Accessories:
- 50-pin flat ribbon cable for connection to host I/O boards
- 50-pin SCSI cable for ND-6058 or equivalent
- DIN-rail mounting hardware (standard industrial rail clips)
- External power supply (12 VDC or 24 VDC depending on model)

Connector Details:
- J1/J2 Terminal Blocks: Each channel provides three terminals (Common, Normally Closed, Normally Open)
- CN6 (Opto-22): Standard 50-pin header for direct connection to Opto-22 compatible devices
- CN7 (SCSI): 50-pin SCSI interface for digital I/O boards
- CN9: 3-pin power input terminal (+V, GND, +V)

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### 6. Installation & Setup

Mounting Requirements:
- Designed for DIN-rail installation in control cabinets or industrial enclosures.
- Ensure adequate ventilation and clearance for wiring access.

Power Requirements:
- External DC power supply required: +12 VDC or +24 VDC depending on model variant.
- Connect power to CN9 terminal block observing correct polarity.

Wiring Configuration:
- Connect external loads to J1 and J2 terminal blocks.
- Each relay channel provides three terminals:
- COM (Common)
- NC (Normally Closed)
- NO (Normally Open)
- Use appropriate wire gauge for current rating (recommended 18–22 AWG).

Signal Interface Setup:
- Connect CN6 to an Opto-22 compatible digital output board using a 50-pin ribbon cable.
- Alternatively, connect CN7 to a 50-pin SCSI digital output interface such as ND-6058.
- Verify pin assignments before connection to prevent miswiring.

Configuration Steps:
1. Mount the board securely on a DIN rail.
2. Connect the power supply to CN9.
3. Wire external devices to J1 and J2 according to channel mapping.
4. Connect CN6 or CN7 to the host I/O board.
5. Power on the system and verify LED indicators for correct operation.

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### 7. Performance & Capabilities

Switching Performance:
- Supports both AC and DC load switching up to 250 VAC or 220 VDC.
- Fast relay response suitable for general-purpose control applications.
- High isolation ensures reliable operation in electrically noisy environments.

Load Capacity:
- Each relay channel can handle up to 2 A continuous current.
- Suitable for low-to-medium power control of solenoids, relays, and indicator lamps.

Efficiency & Reliability:
- Low coil power consumption due to high-sensitivity relay design.
- Long mechanical life expectancy (typically >10⁶ operations).
- Electrical life dependent on load type and switching frequency.

Limitations:
- Not intended for high-frequency switching or inductive loads without suppression.
- Requires external flyback diodes or snubbers for inductive load protection.
- Ensure total current draw does not exceed power supply capacity.

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### 8. Standards & Compliance

Certifications & Ratings:
- UL/CSA recognized relay components
- FCC surge withstand capability (1500 V)
- Isolation voltage: 1500 VDC between control and load circuits
- Designed to meet industrial EMC and safety standards

Industry Standards:
- Opto-22 compatible pinout for digital I/O interfacing
- DIN-rail mounting standard (EN 50022)
- Compliant with ADLINK NuDAQ/NuDAM system architecture

Regulatory Compliance:
- Manufactured under ADLINK’s ISO-certified quality management system
- Conforms to CE and FCC requirements for industrial electronic equipment

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### 9. Additional Information

Warranty:
- One-year limited warranty from the date of purchase.
- Covers defects in materials and workmanship under normal operating conditions.
- Excludes damage due to misuse, modification, or operation beyond specified ratings.

Support & Service:
- Sales & Service: service@adlink.com.tw
- Technical Support (NuDAQ): nudaq@adlink.com.tw
- NuDAM Support: nudam@adlink.com.tw
- Telephone: +886-2-82265877
- Fax: +886-2-82265717

Maintenance:
- Periodically inspect terminal connections for tightness and corrosion.
- Keep the board free from dust and moisture.
- Replace relays only with equivalent rated components.

Software & Updates:
- Compatible with ADLINK’s NuDAQ driver suite and software utilities.
- Firmware-independent hardware; no software configuration required for basic operation.

Environmental Considerations:
- Operating temperature: 0°C to 50°C (typical)
- Storage temperature: -20°C to 70°C
- Humidity: 10–90% RH non-condensing

Product Lifecycle & Reliability:
- Designed for long-term industrial deployment.
- Backed by ADLINK’s global support and replacement policy.

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### Summary

The ADLINK DIN-24R/24-01 is a robust, high-performance 24-channel relay output terminal board optimized for industrial automation and data acquisition systems. Its combination of DIN-rail mountability, Opto-22 compatibility, and high isolation makes it ideal for controlling a wide range of AC and DC loads. With flexible interfacing options, LED diagnostics, and reliable relay performance, it serves as a dependable output interface for PLCs, DAQ cards, and embedded control systems.

Engineered by ADLINK Technology Inc., the DIN-24R/24-01 exemplifies industrial reliability, modular design, and ease of integration—making it a preferred choice for engineers and system integrators seeking scalable, isolated relay output solutions.