1. Product Overview
Product Name: SCSI-VHDCI Flat 68-Pin Male-to-Male Round Cable
Model Number: ACL-10568NF-5
Article Number: ACL-10568NF-5
Series: Designed for PCI-744x Series
Manufacturer: ADLINK Technology Inc.

The ADLINK ACL-10568NF-5 is a high-performance SCSI-VHDCI (Very High Density Cable Interconnect) cable engineered for reliable, high-speed data transmission between ADLINK PCI-744x series data acquisition and control cards and compatible peripheral devices. This cable features a 68-pin VHDCI male connector on one end and a 68-pin SCSI-II male connector on the other, providing a robust and interference-resistant connection for industrial, laboratory, and embedded computing environments. With a total length of 5 meters, the ACL-10568NF-5 offers flexibility in system layout while maintaining signal integrity and compliance with SCSI-II electrical standards.

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2. Key Features
- High-Density 68-Pin VHDCI Interface: Supports SCSI-II standard connections with compact, high-density pin configuration for space-efficient installations.
- Dual Male Connectors: Equipped with one 68-pin VHDCI male connector and one 68-pin SCSI-II male connector, ensuring compatibility with a wide range of ADLINK and third-party devices.
- Optimized for PCI-744x Series: Specifically designed for ADLINK’s PCI-744x digital I/O and motion control cards, ensuring full electrical and mechanical compatibility.
- 5-Meter Cable Length: Provides extended reach for flexible equipment placement without compromising signal quality.
- Round Cable Design: The round cable structure enhances durability, reduces electromagnetic interference (EMI), and simplifies cable routing in confined spaces.
- Flat VHDCI Connector Housing: The flat connector design allows for secure connections in dense rack or chassis configurations.
- High Signal Integrity: Shielded construction minimizes crosstalk and signal degradation, supporting stable high-speed data transfer.
- Industrial-Grade Durability: Built with robust materials suitable for continuous operation in industrial and laboratory environments.
- Plug-and-Play Compatibility: No additional configuration required; designed for direct connection between host controller and peripheral device.

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3. Technical Specifications
- Model: ACL-10568NF-5
- Cable Type: SCSI-VHDCI Round Cable
- Connector Type (End A): 68-pin VHDCI Male (Very High Density Cable Interconnect)
- Connector Type (End B): 68-pin SCSI-II Male
- Number of Pins: 68
- Cable Length: 5 meters (16.4 feet)
- Cable Shape: Round
- Connector Housing: Flat VHDCI design for compact installation
- Color: Black
- Conductor Material: High-purity copper conductors for optimal signal transmission
- Insulation Material: High-grade PVC or equivalent industrial insulation
- Shielding: Full-coverage foil and braid shielding for EMI/RFI protection
- Outer Jacket Material: Flexible, abrasion-resistant PVC jacket
- Operating Temperature Range: Typically 0°C to +70°C (dependent on installation environment)
- Storage Temperature Range: -20°C to +80°C
- Signal Type: Differential SCSI-II signaling
- Impedance: 100 ± 10 ohms (typical for SCSI-II cables)
- Voltage Rating: 30V (nominal)
- Current Rating: 1A per signal line (typical)
- Weight: Approximately 0.6–0.8 kg (depending on cable gauge and shielding)
- Compliance: Meets SCSI-II electrical and mechanical interface specifications

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4. Functionality
The ACL-10568NF-5 functions as a high-speed data transmission link between a host controller—typically an ADLINK PCI-744x series card—and external SCSI-compatible devices such as data acquisition modules, motion controllers, or digital I/O expansion units. The VHDCI connector interfaces directly with the PCI-744x card’s external port, while the SCSI-II connector attaches to the peripheral device or breakout module.

The cable transmits parallel digital signals across 68 conductors, maintaining signal integrity through differential signaling and comprehensive shielding. It supports synchronous and asynchronous data transfer modes as defined by the SCSI-II standard, ensuring reliable communication even in electrically noisy environments.

Typical Use Cases:
- Industrial automation systems requiring high-speed digital I/O connectivity
- Laboratory instrumentation setups using ADLINK PCI-744x cards
- Embedded control systems integrating multiple SCSI-based modules
- Test and measurement applications requiring long cable runs between host and device
- Motion control systems where PCI-744x cards interface with external controllers

Compatibility:
- Fully compatible with ADLINK PCI-744x series cards (e.g., PCI-7442, PCI-7443, PCI-7444)
- Backward compatible with other SCSI-II compliant devices and accessories
- Suitable for use with VHDCI-to-SCSI breakout boxes, terminal boards, and signal conditioning modules

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5. Components & Accessories
Included Items:
- 1 × ACL-10568NF-5 SCSI-VHDCI 68-pin male-to-male round cable (5 meters)

Optional Accessories (sold separately):
- ADLINK terminal boards for PCI-744x series (e.g., DIN-68S, ACLD-9188)
- VHDCI-to-SCSI adapter modules
- Cable management clips or strain relief brackets
- Protective connector covers for unused ports

Connectors:
- VHDCI Male Connector: Compact 68-pin interface with screw-lock or latch mechanism for secure attachment to PCI-744x card.
- SCSI-II Male Connector: Standard 68-pin half-pitch connector compatible with SCSI-II peripheral devices.

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6. Installation & Setup
Requirements:
- Compatible ADLINK PCI-744x series card or equivalent SCSI-II interface
- Peripheral device with 68-pin SCSI-II female connector
- Adequate clearance for cable routing and connector access

Installation Steps:
1. Power off all connected equipment before installation.
2. Connect the VHDCI male end of the ACL-10568NF-5 to the VHDCI port on the PCI-744x card.
3. Secure the connector using the built-in latch or screw-lock mechanism to ensure a stable connection.
4. Attach the SCSI-II male connector to the corresponding female port on the peripheral device.
5. Verify that both connectors are fully seated and locked in place.
6. Power on the system and confirm device recognition through the host software or operating system.

Mounting Options:
- The round cable design allows flexible routing through cable trays, conduits, or rack enclosures.
- Optional strain relief or cable clamps can be used to prevent mechanical stress on connectors.

Configuration:
- No software configuration required for the cable itself.
- Device configuration is managed through the PCI-744x driver and associated ADLINK software utilities.

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

Signal Integrity:
- Differential signaling and full shielding minimize crosstalk and maintain low signal attenuation over the 5-meter length.
- Impedance-controlled design ensures consistent transmission characteristics across all conductors.

Cable Length Considerations:
- 5-meter length provides a balance between flexibility and performance, suitable for most industrial and laboratory setups.
- For longer distances, signal repeaters or active terminators may be required to maintain SCSI-II compliance.

Electrical Performance:
- Low capacitance and controlled impedance for high-speed data transmission.
- Excellent noise immunity due to double shielding (foil + braid).

Mechanical Durability:
- Ruggedized connectors rated for multiple mating cycles (>500 insertions).
- Flexible jacket resists abrasion, bending, and mechanical stress.

Limitations:
- Designed specifically for SCSI-II and PCI-744x applications; not suitable for Ultra320 or SCSI-III interfaces.
- Maximum cable length limited by SCSI-II electrical specifications (typically 6 meters for single-ended, 12 meters for differential).

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8. Standards & Compliance
- SCSI-II Standard Compliance: Fully compliant with ANSI X3.131-1994 (SCSI-2) electrical and mechanical interface specifications.
- VHDCI Connector Standard: Conforms to ANSI/EIA-364 and SFF-8470 mechanical standards for high-density interconnects.
- RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances Directive (RoHS 2011/65/EU).
- REACH Compliance: Meets EU REACH regulation requirements for chemical safety.
- Quality Assurance: Produced under ISO 9001:2015 certified manufacturing processes.
- EMI/RFI Shielding: Designed to meet FCC Part 15 Class A and CE EMC requirements when properly installed.
- Safety Standards: Complies with UL and CSA safety guidelines for low-voltage interconnect cables.

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9. Additional Information
Warranty:
- Standard 1-year limited warranty from ADLINK Technology covering manufacturing defects and workmanship.
- Extended warranty options may be available through authorized distributors.

Support:
- Technical support provided by ADLINK via online resources, documentation, and customer service channels.
- Comprehensive product datasheets, pinout diagrams, and compatibility lists available on ADLINK’s official website.

Maintenance:
- Periodically inspect connectors for dust or debris; clean with appropriate electronic contact cleaner if necessary.
- Avoid excessive bending or twisting of the cable to maintain long-term reliability.
- Store in a dry, temperature-controlled environment when not in use.

Updates & Revisions:
- Product specifications subject to change without notice as ADLINK updates its PCI-744x series and accessory ecosystem.
- Latest documentation and compatibility information available through ADLINK’s product support portal.

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Summary
The ADLINK ACL-10568NF-5 SCSI-VHDCI Flat 68-Pin Male-to-Male Round Cable (5m) is a precision-engineered interconnect solution optimized for the PCI-744x series of ADLINK data acquisition and control cards. Combining a 68-pin VHDCI male connector with a 68-pin SCSI-II male connector, this cable ensures high-speed, low-noise data transmission across a 5-meter span. Its robust shielding, industrial-grade materials, and compliance with SCSI-II and VHDCI standards make it ideal for demanding applications in automation, test, and measurement systems. With plug-and-play compatibility, durable construction, and ADLINK’s quality assurance, the ACL-10568NF-5 delivers reliable connectivity and long-term performance in professional and industrial environments.