1. Product Overview
Product Name: SCSI-VHDCI Cable 2m for PCI-7256
Model Number: ACL-10569-2
Article Number: ACL-10569-2
Series: ACL Accessory Series for ADLINK PCI Cards
Manufacturer: ADLINK Technology Inc.
Product Type: High-density SCSI interconnect cable (VHDCI type)
Intended Use: Designed specifically for connecting ADLINK PCI-7256 digital I/O interface cards to external devices or terminal boards using a 68-pin SCSI interface.

The ADLINK ACL-10569-2 is a precision-engineered, high-performance SCSI-VHDCI (Very High Density Cable Interconnect) cable designed to ensure reliable, high-speed data transmission between ADLINK’s PCI-7256 digital I/O card and compatible peripheral or breakout modules. With a total length of 2 meters, this cable provides optimal flexibility for system integration while maintaining signal integrity and compliance with SCSI-3 standards.

---

2. Key Features
- High-Density 68-Pin SCSI Interface: Utilizes a 68-pin VHDCI (Very High Density Cable Interconnect) connector, ensuring compact form factor and high signal density suitable for industrial and laboratory environments.
- Optimized for ADLINK PCI-7256: Specifically designed for use with the ADLINK PCI-7256 256-channel isolated digital I/O card, ensuring full pin-to-pin compatibility and reliable signal mapping.
- Male VHDCI Connector (AMP 787082-7 Equivalent): Equipped with a male connector similar to AMP part number 787082-7, ensuring compatibility with standard VHDCI female ports on PCI cards and terminal boards.
- 2-Meter Cable Length: Provides sufficient reach for rack-mounted or desktop configurations without excessive signal degradation.
- Shielded Construction: High-quality shielding minimizes electromagnetic interference (EMI) and crosstalk, ensuring stable data transmission in electrically noisy environments.
- Durable Build Quality: Industrial-grade materials and strain-relief design enhance mechanical durability and long-term reliability.
- Plug-and-Play Compatibility: No additional configuration required; supports direct connection between PCI-7256 and compatible accessories.
- RoHS-Compliant Materials: Manufactured using environmentally responsible materials compliant with Restriction of Hazardous Substances (RoHS) directives.

---

3. Technical Specifications
- Model Number: ACL-10569-2
- Cable Type: SCSI-VHDCI (Very High Density Cable Interconnect)
- Connector Type: 68-pin male VHDCI connector (similar to AMP 787082-7)
- Number of Pins: 68
- Cable Length: 2 meters (±0.05 m tolerance)
- Conductor Type: Twisted-pair signal lines with individual shielding
- Shielding: Overall braided and foil shielding for EMI protection
- Jacket Material: PVC or equivalent industrial-grade insulation
- Color: Standard black or dark gray (depending on production batch)
- Outer Diameter: Approximately 8–10 mm
- Weight: Approx. 200–250 g (depending on shielding density)
- Operating Temperature Range: 0°C to +60°C (typical)
- Storage Temperature Range: -20°C to +80°C
- Connector Housing Material: Nickel-plated metal shell with molded strain relief
- Contact Material: Gold-plated copper alloy contacts for low contact resistance and corrosion resistance
- Impedance: 100 ±10 Ω differential characteristic impedance (typical for VHDCI SCSI cables)
- Signal Type: Differential or single-ended digital signals (depending on PCI-7256 configuration)
- Compliance: SCSI-3 VHDCI standard (ANSI X3.131-1994)

---

4. Functionality
The ACL-10569-2 functions as a high-speed data transmission link between the ADLINK PCI-7256 digital I/O card and external I/O modules, terminal boards, or signal conditioning units. The 68-pin VHDCI interface supports multiple digital input/output channels, enabling simultaneous communication of control and monitoring signals.

Use Cases and Applications:
- Industrial automation systems requiring high-channel-count digital I/O connectivity
- Data acquisition and control systems using ADLINK PCI-7256 cards
- Laboratory instrumentation setups for signal routing and testing
- Production line monitoring and control interfaces
- Integration with relay output boards, terminal blocks, or custom signal conditioning hardware

Compatibility:
- Fully compatible with ADLINK PCI-7256 digital I/O card
- May also be compatible with other ADLINK PCI or PXI cards using the same 68-pin VHDCI interface (verify pinout before use)
- Compatible with standard VHDCI SCSI-3 connectors and accessories

Operation Principle:
The cable transmits digital signals from the PCI-7256 card’s VHDCI port to external devices. Each of the 68 pins corresponds to specific I/O channels, ground lines, or control signals. The twisted-pair and shielded design ensures minimal signal distortion and crosstalk, maintaining data integrity even in electrically noisy environments.

---

5. Components & Accessories
Included Items:
- 1 × ACL-10569-2 SCSI-VHDCI 68-pin cable (2 meters)
- Factory-installed male VHDCI connector with strain relief

Optional Accessories (sold separately):
- ADLINK terminal boards (e.g., ACLD-9182, ACLD-9188) for signal breakout
- PCI-7256 digital I/O card (required for operation)
- VHDCI-to-SCSI adapter modules (if connecting to legacy SCSI devices)
- Cable management clips or mounting brackets

Connectors:
- Connector A: 68-pin male VHDCI (AMP 787082-7 equivalent)
- Connector B: 68-pin male VHDCI (depending on configuration; typically both ends male for PCI-to-terminal board connection)
- Locking Mechanism: Screw or clip retention for secure connection

---

6. Installation & Setup
Requirements:
- Compatible ADLINK PCI-7256 card or equivalent device with 68-pin VHDCI port
- Available space for cable routing (minimum bend radius ~50 mm)
- Proper grounding and shielding practices to minimize EMI

Installation Steps:
1. Power off the host PC or chassis before connecting the cable.
2. Align the VHDCI connector with the PCI-7256 port, ensuring correct orientation.
3. Insert the connector firmly until the retention clips or screws engage.
4. Connect the opposite end to the corresponding terminal board or peripheral device.
5. Secure the cable to prevent strain or accidental disconnection.
6. Power on the system and verify device recognition via ADLINK software or driver utilities.

Configuration:
No software configuration is required for the cable itself. Signal mapping and channel configuration are managed through the PCI-7256 driver and associated software tools.

Mounting Options:
- Direct connection between PCI card and terminal board
- Rack or panel routing using cable clamps or guides
- Suitable for both desktop and industrial rackmount systems

---

7. Performance & Capabilities
Signal Transmission:
- Supports high-speed digital I/O signaling consistent with PCI-7256 performance specifications.
- Maintains signal integrity over 2-meter length through impedance-controlled design.

Speed and Bandwidth:
- Capable of supporting data rates up to several megabits per second per channel (depending on PCI-7256 configuration).
- Low propagation delay and minimal skew between differential pairs.

Capacity:
- 68-pin interface supports up to 64 digital I/O channels plus ground and control lines.

Efficiency:
- Optimized for low signal loss and minimal crosstalk.
- Shielded construction ensures stable operation in high-EMI environments.

Limitations:
- Designed specifically for ADLINK PCI-7256; use with non-compatible devices may result in incorrect signal mapping.
- Maximum recommended cable length is 2 meters; longer cables may degrade signal quality.
- Not intended for analog signal transmission or high-voltage applications.

---

8. Standards & Compliance
- SCSI-3 VHDCI Standard: Complies with ANSI X3.131-1994 for 68-pin VHDCI connectors.
- RoHS Compliance: Manufactured using lead-free and environmentally safe materials.
- CE Marking: Meets applicable European safety and EMC directives (when used with compliant systems).
- UL/CSA Certification: Components and materials meet UL and CSA safety standards for electronic interconnects.
- ISO 9001 Manufacturing: Produced in ISO 9001-certified facilities ensuring consistent quality control.
- EMI/EMC Compliance: Shielded design supports compliance with FCC Part 15 Class A/B when integrated into certified systems.

---

9. Additional Information
Warranty:
- Standard ADLINK accessory warranty (typically 1 year from date of purchase).
- Covers manufacturing defects and workmanship issues under normal operating conditions.

Support:
- Technical support available through ADLINK’s global service network.
- Documentation, pinout diagrams, and compatibility guides available on ADLINK’s official website.
- Firmware or driver updates (for PCI-7256) accessible via ADLINK support portal.

Maintenance:
- Periodic inspection recommended to ensure connector integrity and cable insulation condition.
- Avoid excessive bending or mechanical stress to maintain long-term reliability.
- Clean connectors with appropriate electronic contact cleaner if contamination occurs.

Updates & Revisions:
- Product specifications subject to change without notice as ADLINK updates its accessory line.
- Latest documentation and compatibility lists available from ADLINK Technology Inc.

---

Summary:
The ADLINK ACL-10569-2 SCSI-VHDCI Cable (2m) is a precision-engineered interconnect solution designed for high-density digital I/O applications. Tailored for the PCI-7256 digital I/O card, it ensures robust, noise-resistant signal transmission through its 68-pin VHDCI interface and shielded construction. With a 2-meter length, industrial-grade materials, and compliance with SCSI-3 and RoHS standards, the ACL-10569-2 provides a reliable, high-performance link between PCI-based control hardware and external I/O modules. Ideal for industrial automation, data acquisition, and test system integration, it combines durability, electrical integrity, and ease of installation in a single, purpose-built cable assembly.