1. Product Overview
Product Name: 50-pin SCSI-II Cable
Model Number: ACL-10250-1
Series: ACL Series (Adlink Connectivity Line)
Article Number: ACL-10250-1
Manufacturer: ADLINK Technology Inc.

The ADLINK ACL-10250-1 is a high-quality 50-pin SCSI-II (Small Computer System Interface, second generation) cable designed for reliable, high-speed data transfer between SCSI-compatible devices. This cable is part of ADLINK’s ACL series of industrial-grade connectivity accessories, engineered to ensure robust signal integrity and mechanical durability in demanding computing and instrumentation environments. The ACL-10250-1 features a male-to-male configuration and a total cable length of 1 meter, optimized for short-distance, high-performance interconnections between host adapters, external drives, and peripheral devices.

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2. Key Features
- Interface Type: SCSI-II (50-pin)
- Connector Type: Male-to-Male, Centronics-style or Half-Pitch 50-pin (HPDB50) depending on configuration
- Cable Length: 1 meter (approx. 3.28 feet)
- High-Speed Data Transfer: Supports SCSI-II data rates up to 10 MB/s (Fast SCSI)
- Signal Integrity: Twisted-pair construction and shielding minimize crosstalk and electromagnetic interference (EMI)
- Industrial-Grade Build: Designed for reliable operation in laboratory, industrial automation, and embedded computing environments
- Plug-and-Play Compatibility: Fully compatible with standard SCSI-II devices and host adapters
- Durable Construction: Molded strain relief and reinforced connectors for extended service life
- Backward Compatibility: Supports legacy SCSI-I devices and forward-compatible with certain SCSI-III interfaces (with appropriate adapters)
- Manufacturer Quality Assurance: Produced by ADLINK, a recognized manufacturer of industrial computing and connectivity solutions

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3. Technical Specifications
- Cable Type: SCSI-II 50-pin data cable
- Connector A: 50-pin male SCSI-II
- Connector B: 50-pin male SCSI-II
- Number of Conductors: 50
- Pin Configuration: Standard SCSI-II pinout (25 signal pairs)
- Cable Length: 1.0 meter (±0.05 m tolerance)
- Cable Diameter: Approximately 8–10 mm (depending on shielding and insulation)
- Conductor Material: Tinned copper conductors
- Insulation Material: High-temperature PVC or equivalent industrial-grade polymer
- Shielding: Foil and braid shield for EMI/RFI protection
- Jacket Material: Flexible PVC outer jacket, abrasion-resistant
- Color: Typically gray or black (standard ADLINK cable color scheme)
- Operating Temperature Range: -20°C to +75°C (typical)
- Storage Temperature Range: -40°C to +85°C
- Impedance: 90 ±10 ohms (differential)
- Signal Type: Differential or single-ended (depending on connected devices)
- Weight: Approx. 100–150 g per meter
- Bend Radius: Minimum 10× cable diameter recommended

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4. Functionality
The ACL-10250-1 functions as a high-performance data transmission cable for SCSI-II interfaces, enabling communication between host controllers and peripheral devices such as external hard drives, CD-ROM drives, scanners, and industrial data acquisition modules. The 50-pin male-to-male configuration allows direct connection between devices equipped with corresponding female SCSI-II ports.

Use Cases and Applications:
- Industrial automation systems requiring reliable peripheral connectivity
- Laboratory instrumentation and data acquisition setups
- Legacy computing systems using SCSI-II or SCSI-I interfaces
- Embedded computing platforms and test equipment
- External storage arrays and RAID enclosures
- Communication between SCSI host adapters and external devices

Compatibility:
- Compatible with SCSI-II (Fast SCSI) devices
- Backward compatible with SCSI-I (8-bit) devices
- Can interface with SCSI-III (Ultra SCSI) devices using appropriate adapters
- Works with ADLINK data acquisition cards, PXI systems, and industrial PCs equipped with SCSI-II ports

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5. Components & Accessories
Included Items:
- 1 × ACL-10250-1 SCSI-II 50-pin male-to-male cable (1 meter length)

Optional Accessories (sold separately):
- SCSI terminators (active or passive) for proper bus termination
- SCSI gender changers or adapters (male-to-female, female-to-female)
- SCSI-II to SCSI-III adapter cables
- Cable management clips or strain relief mounts

Connectors:
- Two molded 50-pin male connectors with retention clips or thumbscrews (depending on model variant)
- Gold-plated contacts for corrosion resistance and improved conductivity
- Molded strain relief at each connector end to prevent cable fatigue

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6. Installation & Setup
Requirements:
- Devices equipped with standard 50-pin SCSI-II female connectors
- Proper SCSI bus termination at both ends of the chain
- Host adapter or controller supporting SCSI-II signaling

Mounting Options:
- Direct plug-in connection between devices
- Can be routed through cable trays or harnesses in industrial enclosures
- Suitable for rack-mounted or benchtop configurations

Configuration Steps:
1. Power off all SCSI devices before connecting the cable.
2. Connect one end of the ACL-10250-1 to the host adapter’s SCSI-II port.
3. Connect the other end to the target device’s SCSI-II port.
4. Ensure proper termination at the end of the SCSI chain (either via device termination or external terminator).
5. Power on devices in sequence (host last) to allow proper SCSI bus initialization.

Installation Notes:
- Avoid excessive bending or twisting of the cable.
- Maintain recommended bend radius to preserve signal integrity.
- Keep cable runs as short as possible to minimize signal degradation.
- Ensure connectors are fully seated and secured.

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7. Performance & Capabilities
Data Transfer Rate: Up to 10 MB/s (Fast SCSI, asynchronous or synchronous mode)
Bus Width: 8-bit (narrow SCSI)
Maximum Cable Length (per SCSI-II standard):
- Single-ended: up to 3 meters total bus length
- Differential: up to 25 meters total bus length (depending on configuration)
Signal Quality:
- Low crosstalk due to twisted-pair design
- Shielded construction minimizes EMI and RFI interference
Electrical Characteristics:
- Characteristic impedance: 90 ohms ±10%
- Propagation delay: ~5 ns/m
- Capacitance: < 50 pF/m typical
Mechanical Durability:
- Connector insertion cycles: ≥500 mating cycles
- Tensile strength: ≥100 N (typical)
Limitations:
- Designed for SCSI-II data rates; not suitable for Ultra320 or Ultra640 SCSI without adapters
- Limited to 1-meter length; not intended for long-distance interconnects
- Requires proper termination to prevent signal reflections

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8. Standards & Compliance
Industry Standards:
- Complies with ANSI X3.131-1994 (SCSI-2) standard
- Meets EIA/TIA-232 and EIA-422 electrical interface guidelines (for differential signaling)
- Connector pinout per SCSI-II 50-pin standard (HPDB50 or Centronics 50)

Regulatory Compliance:
- RoHS (Restriction of Hazardous Substances) compliant
- REACH compliant (Registration, Evaluation, Authorization, and Restriction of Chemicals)
- CE marked (where applicable)
- Manufactured in accordance with ISO 9001:2015 quality management standards

Safety and Environmental:
- Halogen-free insulation available on request
- Meets flammability rating UL VW-1 (for PVC jacket)
- Operating environment: non-condensing, indoor use

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9. Additional Information
Warranty:
- Standard ADLINK limited warranty (typically 1 year from date of purchase) covering manufacturing defects and workmanship

Support:
- Technical support available through ADLINK’s global service network
- Online documentation, datasheets, and compatibility guides available on ADLINK’s website

Maintenance:
- Periodic inspection recommended for connector wear or cable damage
- Clean connectors with isopropyl alcohol and lint-free swabs if contamination occurs
- Store in a dry, dust-free environment when not in use

Updates and Revisions:
- Product specifications subject to change without notice as part of ADLINK’s continuous improvement policy
- Updated datasheets and compatibility lists available from ADLINK’s technical resources portal

Ordering Information:
- Part Number: ACL-10250-1
- Description: 50-pin SCSI-II cable, male-to-male, 1 meter length
- Manufacturer: ADLINK Technology Inc.
- Availability: Standard stock item, available through ADLINK distributors and authorized resellers

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Summary
The ADLINK ACL-10250-1 50-pin SCSI-II Cable (1m) is a precision-engineered connectivity solution designed for high-reliability data transmission in industrial, laboratory, and embedded computing environments. With its robust construction, shielded design, and adherence to SCSI-II standards, it ensures stable, interference-free communication between host adapters and peripheral devices. The 1-meter length provides an optimal balance between flexibility and signal integrity for short-range interconnections.

Engineered by ADLINK, a leader in industrial computing solutions, the ACL-10250-1 exemplifies quality, durability, and compliance with international standards—making it a dependable choice for professionals requiring consistent SCSI-II performance in mission-critical applications.