1. Product Overview
Product Name: SCSI-VHDCI Flat 68-Pin Male-to-Male Round Cable
Model Number: ACL-10568NF-1
Article Number: ACL-10568NF-1
Series: Designed for PCI-744x Series
Manufacturer: ADLINK Technology Inc.

The ADLINK ACL-10568NF-1 is a high-quality SCSI-VHDCI (Very High Density Cable Interconnect) flat 68-pin male-to-male round cable engineered for use with ADLINK’s PCI-744x series data acquisition and control cards. This cable provides a reliable, shielded, and high-speed data connection between host interface cards and peripheral devices that utilize the SCSI-II or VHDCI 68-pin standard. It is designed to ensure signal integrity, minimize crosstalk, and maintain consistent performance in demanding industrial and laboratory environments.

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2. Key Features
- Interface Type: SCSI-II / VHDCI 68-pin male-to-male configuration
- Connector Type: One 68-pin VHDCI male connector and one 68-pin SCSI-II male connector
- Cable Length: 1 meter (approx. 3.28 feet)
- Cable Type: Round, shielded cable with flat VHDCI connector design
- Compatibility: Specifically designed for ADLINK PCI-744x series cards
- High-Density Connector: VHDCI (Very High Density Cable Interconnect) supports compact, high-speed data transmission
- Signal Integrity: Shielded construction reduces electromagnetic interference (EMI) and radio frequency interference (RFI)
- Durability: Molded connectors and strain relief for long-term mechanical stability
- Color: Black
- Application: Ideal for connecting PCI-based motion control or data acquisition cards to external devices or breakout modules

The ACL-10568NF-1 cable is optimized for high-performance data transfer applications where compact connectors and reliable signal transmission are critical. Its VHDCI interface supports dense pin configurations, allowing multiple signal lines within a small connector footprint.

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3. Technical Specifications
- Model: ACL-10568NF-1
- Cable Type: Round, shielded SCSI-II/VHDCI cable
- Connector A: 68-pin VHDCI male
- Connector B: 68-pin SCSI-II male
- Number of Pins: 68
- Cable Length: 1 meter (±0.05 m tolerance)
- Cable Diameter: Approximately 6–8 mm (typical for shielded round cables of this type)
- Color: Black
- Material:
- Conductor: High-purity copper for low resistance and high conductivity
- Insulation: PVC or equivalent thermoplastic insulation for flexibility and durability
- Shielding: Braided copper and aluminum foil shielding for EMI/RFI protection
- Jacket: PVC outer jacket, abrasion-resistant
- Connector Housing: Molded plastic with integrated strain relief
- Operating Temperature Range: 0°C to +70°C (typical for SCSI/VHDCI cables)
- Storage Temperature Range: -20°C to +80°C
- Impedance: 100 ±10 Ω (differential characteristic impedance typical for SCSI-II)
- Signal Type: Differential signaling for high-speed data integrity
- Compliance: Meets SCSI-II and VHDCI mechanical and electrical interface standards

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4. Functionality
The ACL-10568NF-1 functions as a high-speed data transmission cable between a host controller (such as an ADLINK PCI-744x motion control card) and external devices or breakout modules that use the SCSI-II or VHDCI 68-pin interface.

How It Works:
- The VHDCI male connector attaches to the PCI-744x card’s external port.
- The opposite 68-pin SCSI-II male connector connects to a compatible peripheral or breakout box.
- The cable transmits multiple differential signal pairs, enabling simultaneous communication of control, data, and status signals.
- Shielding and twisted-pair construction minimize signal degradation and crosstalk, ensuring accurate data transfer even in electrically noisy environments.

Use Cases and Applications:
- Industrial automation systems requiring motion control and I/O expansion
- Data acquisition systems connecting PCI-based DAQ cards to external signal conditioning modules
- Laboratory instrumentation setups using SCSI-II or VHDCI interfaces
- Embedded test and measurement systems
- Robotics and machine vision applications requiring high-speed control signal transmission

Compatibility:
- Fully compatible with ADLINK PCI-744x series cards (e.g., PCI-7442, PCI-7443, PCI-7444)
- May also be compatible with other devices supporting 68-pin VHDCI or SCSI-II interfaces, provided pin assignments match

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5. Components & Accessories
Included Items:
- One (1) SCSI-VHDCI flat 68-pin male-to-male round cable, 1 meter in length

Optional Accessories (sold separately):
- ADLINK breakout modules for PCI-744x series (e.g., DIN-68S, DIN-68D)
- VHDCI-to-SCSI adapter modules for alternative interface configurations
- Cable management accessories such as clips or strain relief mounts

Connectors:
- Connector 1: VHDCI 68-pin male (Very High Density Cable Interconnect)
- Connector 2: SCSI-II 68-pin male (Half-Pitch Centronics or similar form factor)
- Contact Material: Gold-plated contacts for corrosion resistance and low contact resistance
- Connector Shell: Molded plastic with integrated strain relief and retention screws (where applicable)

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6. Installation & Setup
Requirements:
- Compatible ADLINK PCI-744x series card or equivalent device with VHDCI 68-pin port
- Compatible peripheral or breakout module with 68-pin SCSI-II interface

Mounting and Connection:
1. Power off all devices before connecting the cable.
2. Align the VHDCI male connector with the corresponding female port on the PCI-744x card.
3. Secure the connector using the built-in retention screws or latching mechanism to ensure a firm connection.
4. Connect the SCSI-II male end to the target device or breakout module.
5. Verify that the cable is not under mechanical stress or sharp bending.
6. Power on the system and confirm device recognition and communication.

Configuration:
- No software configuration is required for the cable itself.
- Ensure that the connected devices are configured correctly within the host system’s software environment (e.g., ADLINK driver or motion control software).

Installation Notes:
- Avoid routing the cable near high-voltage or high-current lines to minimize EMI.
- Maintain a minimum bend radius of approximately 5–10 times the cable diameter to prevent internal conductor damage.
- Use cable ties or clips to secure the cable in fixed installations.

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7. Performance & Capabilities
Data Transfer Rate:
- Supports SCSI-II data rates up to 40 MB/s (Fast SCSI) depending on system configuration and cable length.

Signal Integrity:
- Differential signaling and full shielding ensure minimal signal loss and crosstalk.
- Gold-plated contacts maintain low contact resistance and consistent electrical performance over repeated insertions.

Capacity and Efficiency:
- Capable of transmitting multiple control and data signals simultaneously through 68-pin architecture.
- Optimized for high-density, high-speed communication between PCI-based controllers and external modules.

Limitations:
- Maximum recommended cable length for optimal SCSI-II performance is typically 1.5 meters; this 1-meter cable ensures compliance with signal integrity requirements.
- Designed specifically for PCI-744x series; use with non-compatible devices may require pinout verification.

Reliability:
- Robust mechanical design with molded strain relief reduces risk of connector fatigue.
- Shielded construction ensures stable operation in industrial environments with electrical noise.

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8. Standards & Compliance
Electrical and Mechanical Standards:
- Conforms to SCSI-II (Small Computer System Interface, ANSI X3.131-1994) specifications
- VHDCI connector complies with ANSI/EIA-364 and SFF-8470 standards for high-density interconnects
- Meets typical industrial-grade cable construction standards for EMI/RFI shielding

Regulatory Compliance:
- RoHS (Restriction of Hazardous Substances) compliant
- REACH compliant (where applicable)
- Manufactured under ISO 9001:2015 certified quality management system

Industry Standards:
- Compatible with standard SCSI-II and VHDCI pin assignments
- Designed for use in accordance with ADLINK’s PCI-744x hardware interface specifications

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9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1 year from date of purchase, subject to ADLINK’s warranty policy)

Support:
- Technical support available through ADLINK’s global service network
- Documentation, pinout diagrams, and compatibility information available on ADLINK’s official website

Maintenance:
- Periodically inspect connectors for dust or debris; clean with compressed air if necessary
- Avoid excessive bending or pulling on the cable to maintain long-term reliability
- Store in a dry, temperature-controlled environment when not in use

Updates and Revisions:
- Product specifications subject to change without notice as ADLINK updates its accessory line for PCI-744x series
- Users should verify the latest compatibility and technical documentation before installation

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Summary
The ADLINK ACL-10568NF-1 SCSI-VHDCI Flat 68-Pin Male-to-Male Round Cable (1m) is a precision-engineered interconnect solution designed for high-speed, high-density data transmission between ADLINK PCI-744x series motion control or data acquisition cards and external devices. Featuring a 68-pin VHDCI male connector on one end and a 68-pin SCSI-II male connector on the other, this cable ensures reliable signal integrity, robust mechanical durability, and full compliance with SCSI-II and VHDCI standards. Its 1-meter length provides an optimal balance between flexibility and performance, making it ideal for industrial automation, laboratory instrumentation, and embedded control applications.

With its shielded construction, gold-plated contacts, and molded strain relief, the ACL-10568NF-1 delivers consistent performance in demanding environments. It is fully RoHS compliant, manufactured under ISO-certified processes, and backed by ADLINK’s warranty and technical support. This cable is an essential accessory for users seeking dependable connectivity and high-speed data transfer in professional and industrial computing systems.