Comprehensive Product Summary: ACL-10550 – 50-Pin SCSI-II Connector Assembly

---

### 1. Product Overview

Product Name: 50-Pin SCSI-II Connector Assembly
Model Number: ACL-10550
Article Number: ACL-10550
Series: SCSI-II Connector Assemblies
Manufacturer: Adlink Technology (Connector manufactured by AMP/Tyco Electronics)

The ACL-10550 is a 50-pin SCSI-II connector male assembly kit designed for high-performance data communication and peripheral interconnect applications. Developed by Adlink Technology, a leading provider of industrial computing and connectivity solutions, and utilizing AMP (Tyco Electronics) connector components, this assembly provides a robust, reliable, and standards-compliant interface for Small Computer System Interface (SCSI) applications. It is engineered for use in industrial, laboratory, and embedded computing environments where secure, high-speed data transfer and signal integrity are critical.

---

### 2. Key Features

- 50-Pin SCSI-II Male Connector: Conforms to the SCSI-II (Small Computer System Interface, Revision 2) standard, supporting parallel data transfer for peripheral devices.
- High-Density Connector Design: Compact 50-pin configuration optimized for multi-device connectivity in limited space environments.
- AMP/Tyco Electronics Quality: Utilizes AMP-manufactured connector components, ensuring high mechanical durability, precision contact alignment, and long-term reliability.
- Adlink Integration: Designed by Adlink for compatibility with Adlink data acquisition cards, industrial controllers, and I/O modules.
- Assembly Kit Format: Supplied as a complete assembly kit including connector housing, contacts, and strain relief components for custom cable fabrication.
- Shielded Construction: Supports shielded cable termination to minimize electromagnetic interference (EMI) and maintain signal integrity.
- Secure Locking Mechanism: Features a robust mechanical latch system for secure mating and unmating cycles.
- Wide Compatibility: Suitable for legacy and modern SCSI-II applications, including instrumentation, data acquisition, and industrial automation systems.
- RoHS-Compliant Materials: Manufactured using lead-free, environmentally compliant materials.
- Field-Serviceable Design: Allows easy assembly, disassembly, and maintenance for field installations or custom cable configurations.

---

### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Connector Type | SCSI-II (Small Computer System Interface, Revision 2) |
| Gender | Male |
| Number of Contacts | 50 pins |
| Contact Pitch | 1.27 mm (0.05 in) typical |
| Contact Type | Crimp or solder termination (depending on cable type) |
| Contact Material | Phosphor bronze or copper alloy |
| Contact Plating | Gold over nickel for corrosion resistance and conductivity |
| Housing Material | Thermoplastic (high-temperature, UL94V-0 rated) |
| Shell Material | Metal (nickel-plated steel or zinc alloy) |
| Cable Type Supported | Shielded twisted pair or flat ribbon cable |
| Cable Diameter Range | Typically 0.8 mm to 1.2 mm per conductor (depending on cable type) |
| Mating Cycles | ≥ 500 insertions |
| Operating Temperature Range | -55°C to +85°C |
| Storage Temperature Range | -65°C to +125°C |
| Insulation Resistance | ≥ 1000 MΩ at 500 VDC |
| Dielectric Withstanding Voltage | 1000 VAC for 1 minute |
| Current Rating per Contact | 1.0 A (typical) |
| Voltage Rating | 30 V RMS (signal level) |
| Dimensions (Connector Body) | Approx. 53 mm (W) × 12 mm (H) × 25 mm (D) |
| Weight | Approx. 25–35 g (depending on cable and strain relief) |
| Mounting Type | Cable-mount (field assembly) |
| Color | Metallic silver shell with black or gray housing |

---

### 4. Functionality

The ACL-10550 50-pin SCSI-II connector assembly serves as a high-speed parallel data interface between host controllers and peripheral devices such as hard drives, CD-ROMs, scanners, and industrial I/O modules. It supports the SCSI-II protocol, which allows multiple devices to share a common bus for data transfer and command communication.

How It Works:
- The connector provides 50 electrical contact points that correspond to the SCSI-II signal lines, including data, control, and ground connections.
- When mated with a corresponding female SCSI-II connector, it establishes a secure electrical interface that supports synchronous and asynchronous data transfer modes.
- The assembly kit allows users to terminate custom cables, ensuring proper pin alignment and shielding for optimal signal performance.

Use Cases and Applications:
- Industrial data acquisition systems (DAQ)
- Embedded computing platforms
- Laboratory instrumentation and test equipment
- Legacy SCSI-based storage systems
- Communication interfaces for automation controllers
- Custom cable assemblies for Adlink PCI/PCIe I/O cards

Compatibility:
- Compatible with standard SCSI-II 50-pin female connectors (half-pitch or high-density types depending on configuration).
- Designed for use with Adlink ACL series accessories and AMP/Tyco SCSI-II connectors.
- Backward compatible with SCSI-I devices and forward compatible with certain SCSI-III implementations (with appropriate adapters).

---

### 5. Components & Accessories

Included in the ACL-10550 Assembly Kit:
1. 50-pin SCSI-II Male Connector Body – AMP-manufactured connector housing with integrated contact alignment guides.
2. Contact Pins (50 pcs) – Gold-plated contacts for crimp or solder termination.
3. Metal Shell / Hood Assembly – Provides mechanical protection and EMI shielding.
4. Strain Relief Clamp – Secures the cable to prevent mechanical stress on the contacts.
5. Mounting Screws and Hardware – For securing the hood and strain relief components.
6. Assembly Instructions – Manufacturer’s guidelines for proper cable termination and connector assembly.

Optional Accessories:
- SCSI-II Female Connector (50-pin) – For mating connection on device or cable end.
- SCSI-II Cable (Shielded, Twisted Pair) – Available in various lengths and configurations.
- Termination Resistors – For proper SCSI bus termination.
- Mounting Brackets or Panel Mount Kits – For fixed installations.
- Dust Caps – To protect unused connectors from contamination.

Connector Interface:
- Standard 50-pin male interface with dual-row contact arrangement.
- Retention clips or screws for secure mating with corresponding female connector.

---

### 6. Installation & Setup

Requirements:
- Compatible SCSI-II cable (50-conductor shielded cable recommended).
- Crimping or soldering tools (depending on termination type).
- Proper grounding and shielding practices to minimize EMI.

Mounting Options:
- Cable-Mount: The connector is designed for direct attachment to a cable end.
- Panel-Mount (with optional bracket): Can be adapted for fixed installations in enclosures or equipment panels.

Configuration Steps:
1. Cable Preparation: Strip the outer insulation and shield layers according to the assembly instructions.
2. Contact Termination: Crimp or solder each conductor to the corresponding contact pin.
3. Contact Insertion: Insert terminated contacts into the connector housing until locked in place.
4. Shield Connection: Attach the cable shield to the metal hood for EMI protection.
5. Strain Relief Installation: Secure the cable using the provided clamp to prevent mechanical stress.
6. Final Assembly: Close the metal hood and fasten with screws.
7. Testing: Verify continuity and pin mapping before connecting to devices.

Tools Recommended:
- Precision wire stripper
- Crimping tool (AMP/Tyco compatible)
- Small screwdriver set
- Multimeter for continuity testing

---

### 7. Performance & Capabilities

Data Transfer Performance:
- Supports SCSI-II data transfer rates up to 10 MB/s (Fast SCSI mode).
- Maintains signal integrity through gold-plated contacts and shielded cable termination.
- Low contact resistance ensures minimal signal loss and consistent performance across multiple mating cycles.

Electrical and Mechanical Performance:
- High insulation resistance and dielectric strength for reliable operation in electrically noisy environments.
- Mechanical durability rated for ≥500 mating cycles, ensuring long service life in industrial applications.
- Operating temperature range from -55°C to +85°C allows use in harsh environments.

Efficiency and Reliability:
- Optimized for low crosstalk and minimal insertion loss.
- Shielded design reduces electromagnetic interference (EMI).
- Secure locking mechanism prevents accidental disconnection during operation.

Limitations:
- Designed for parallel SCSI-II interfaces; not suitable for serial SCSI (SAS) or Fibre Channel systems.
- Maximum cable length limited by SCSI-II specifications (typically up to 6 meters for single-ended configurations).
- Requires proper termination at both ends of the SCSI bus to ensure signal integrity.

---

### 8. Standards & Compliance

Industry Standards:
- SCSI-II (ANSI X3.131-1994) – Compliant with the Small Computer System Interface, Revision 2 standard.
- EIA/TIA-568 – Electrical and mechanical compatibility with standard data communication connectors.
- IEC 61076-4-101 – General requirements for rectangular connectors used in data and signal applications.

Regulatory Compliance:
- RoHS (Restriction of Hazardous Substances) – Lead-free and compliant with EU Directive 2011/65/EU.
- REACH Regulation (EC 1907/2006) – Free from restricted substances.
- UL94V-0 – Flame-retardant housing material rating.
- ISO 9001 Certified Manufacturing – Produced under certified quality management systems.

Environmental Compliance:
- Designed for minimal environmental impact and recyclability.
- Meets industrial environmental standards for temperature, humidity, and vibration resistance.

---

### 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 Documentation: Detailed assembly instructions, pinout diagrams, and compatibility charts available from Adlink’s support portal.
- Customer Service: Adlink provides technical assistance for installation, configuration, and troubleshooting.
- Replacement Parts: Individual connector components and accessories available for purchase.

Maintenance:
- Periodic inspection recommended to ensure contact cleanliness and mechanical integrity.
- Clean contacts with approved electronic contact cleaner if oxidation occurs.
- Avoid excessive mechanical stress or bending of the cable near the connector.

Updates and Product Lifecycle:
- The ACL-10550 remains part of Adlink’s active accessory lineup for legacy and current DAQ systems.
- Compatible with a wide range of Adlink data acquisition and control products, ensuring long-term availability and support.
- Future revisions may include enhanced shielding or updated materials to meet evolving environmental standards.

---

### Summary

The Adlink ACL-10550 50-Pin SCSI-II Connector Assembly is a high-quality, industrial-grade connector solution designed for reliable data communication in SCSI-II systems. Combining AMP/Tyco Electronics precision engineering with Adlink’s system integration expertise, it provides a robust, shielded, and standards-compliant interface for connecting host controllers and peripheral devices. Its modular assembly kit design allows for flexible cable fabrication, field serviceability, and long-term durability in demanding environments.

With compliance to SCSI-II, RoHS, and UL94V-0 standards, and compatibility across a wide range of industrial and computing applications, the ACL-10550 remains a dependable choice for engineers, system integrators, and OEMs requiring a proven, high-performance connector assembly for parallel data communication systems.