1. Product Overview
Product Name: DB37 Cable 4m Male/Male
Model Number: ACL-10137-4
Article Number: ACL-10137-4
Series: ACL Industrial Connectivity Series
Manufacturer: ADLINK Technology Inc.

The ADLINK ACL-10137-4 is a high-quality industrial-grade DB37 round cable designed for reliable signal transmission between devices equipped with 37-pin D-sub (DB37) connectors. With a total length of 4 meters, this cable provides a robust and flexible connection solution for data acquisition (DAQ) systems, industrial automation equipment, and test and measurement applications. The cable features male DB37 connectors on both ends, ensuring compatibility with a wide range of ADLINK I/O cards, breakout modules, and other instrumentation interfaces that utilize the DB37 standard.

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2. Key Features
- Connector Type: Dual DB37 male connectors (37-pin D-sub, standard density)
- Cable Length: 4 meters (13.12 feet) for extended reach in rack-mounted or distributed setups
- Cable Type: Round, shielded cable for enhanced signal integrity and reduced electromagnetic interference (EMI)
- Compatibility: Designed for ADLINK data acquisition cards, digital I/O modules, and other devices using DB37 interfaces
- Industrial-Grade Construction: Durable materials and strain-relief design for long-term reliability in demanding environments
- Plug-and-Play Design: No additional configuration required; supports direct connection between compatible devices
- Signal Integrity: Twisted-pair wiring and shielding minimize crosstalk and noise, ensuring accurate data transmission
- Versatile Application: Suitable for analog and digital signal transmission, control signals, and general-purpose I/O connections
- Secure Connection: Screw-lock mechanisms on both connectors ensure stable mating and prevent accidental disconnection
- RoHS Compliance: Manufactured in accordance with environmental and safety standards

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3. Technical Specifications
- Model: ACL-10137-4
- Cable Type: Round, shielded multi-conductor cable
- Connector Type (End A): DB37 male (37-pin D-sub, standard density)
- Connector Type (End B): DB37 male (37-pin D-sub, standard density)
- Number of Conductors: 37 signal lines
- Cable Length: 4 meters (13.12 feet)
- Conductor Material: High-purity copper for optimal conductivity
- Insulation Material: PVC or equivalent industrial-grade insulation
- Shielding: Overall foil and/or braided shield for EMI/RFI protection
- Outer Jacket Material: Flexible PVC jacket, abrasion-resistant
- Color: Typically black or dark gray (standard ADLINK cable color scheme)
- Operating Temperature Range: -20°C to +80°C (typical for industrial-grade cables)
- Connector Shell Material: Nickel-plated steel or zinc alloy for durability and corrosion resistance
- Contact Material: Gold-plated or tin-plated copper alloy contacts for reliable electrical performance
- Cable Diameter: Approximately 8–10 mm (depending on shielding and insulation thickness)
- Weight: Approx. 0.5–0.8 kg (depending on cable gauge and shielding)
- Electrical Characteristics:
- Impedance: 100–120 Ω (typical for twisted-pair shielded cables)
- Voltage Rating: 30–60 V (signal level applications)
- Current Rating: 1 A per contact (maximum, typical)
- Capacitance: < 50 pF/m between conductors (typical)

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4. Functionality
The ADLINK ACL-10137-4 DB37 cable serves as a high-performance interconnect solution for transmitting analog, digital, or control signals between compatible devices. It is primarily used to connect ADLINK DAQ cards or digital I/O boards to external terminal blocks, breakout boxes, or signal conditioning modules that feature DB37 female connectors.

Typical Use Cases:
- Connecting ADLINK PCI/PCIe DAQ cards to terminal boards (e.g., ACL-10137B, ACLD-9137, etc.)
- Linking digital I/O modules to external control panels or relay boards
- Extending signal paths in test benches, laboratory setups, or industrial control systems
- Providing a reliable interface for measurement and automation systems requiring DB37 connectivity

Compatibility:
- Fully compatible with ADLINK DAQ and DIO products featuring DB37 connectors
- Can be used with third-party equipment adhering to the DB37 pinout standard
- Supports both analog and digital signal transmission, depending on the connected devices

Operation Principle:
The cable transmits electrical signals through its 37 individual conductors, each corresponding to a pin on the DB37 connector. Shielding and twisted-pair design minimize interference and maintain signal integrity over the 4-meter length. The male connectors on both ends allow direct connection to female DB37 ports, ensuring a secure and stable interface.

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5. Components & Accessories
Included Items:
- 1 × DB37 round cable, 4 meters, male/male (ACL-10137-4)

Optional Accessories (sold separately):
- DB37 female/female gender changers or couplers
- DB37 breakout boards (e.g., ADLINK ACLD-9137)
- Mounting brackets or cable management clips
- DB37 extension cables for longer reach
- Protective connector caps for unused ports

Connectors:
- Both ends: DB37 male connectors with screw-lock fasteners
- Pin configuration: Standard DB37 pinout (1–37)
- Connector retention: Thumbscrew locking mechanism for secure attachment

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6. Installation & Setup
Requirements:
- Devices with DB37 female connectors (e.g., DAQ cards, terminal boards, or control modules)
- Adequate space for cable routing and strain relief
- Proper grounding to minimize EMI

Installation Steps:
1. Power off all connected equipment before installation.
2. Align the DB37 male connector with the corresponding female port on the device.
3. Insert the connector carefully, ensuring correct orientation.
4. Tighten the thumbscrews on both sides to secure the connection.
5. Route the cable to the second device, avoiding sharp bends or pinch points.
6. Connect the second DB37 male end to the corresponding female connector.
7. Verify that all connections are secure before powering on the system.

Mounting Options:
- Can be routed through cable trays, conduits, or harnesses
- Suitable for both stationary and semi-flexible installations
- Recommended bend radius: ≥10× cable diameter to prevent conductor stress

Configuration:
- No software configuration required; purely passive electrical connection
- Pin assignments follow standard DB37 mapping as defined by ADLINK or the connected device’s documentation

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7. Performance & Capabilities
Signal Transmission Quality:
The ACL-10137-4 ensures high-fidelity signal transmission over its 4-meter length, maintaining low signal loss and minimal crosstalk. The shielded construction effectively suppresses external noise sources, making it suitable for precision measurement and control applications.

Speed and Bandwidth:
- Supports high-speed digital signals up to several MHz, depending on system configuration and signal type
- Suitable for analog signals up to several kHz without significant attenuation

Capacity:
- 37 independent signal lines for versatile I/O configurations
- Can carry mixed signal types (analog, digital, control) within the same cable

Efficiency:
- Optimized conductor layout and shielding reduce interference and maintain signal integrity
- Gold-plated contacts ensure low contact resistance and long-term reliability

Limitations:
- Not intended for high-voltage or power transmission applications
- Maximum recommended cable length for high-speed signals may vary depending on system noise tolerance
- Designed for indoor or controlled-environment use; not rated for outdoor or direct exposure to moisture

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8. Standards & Compliance
- Connector Standard: D-subminiature (DB37) per EIA/TIA-232 and related interface standards
- Environmental Compliance: RoHS compliant (Restriction of Hazardous Substances Directive)
- Manufacturing Standards: ISO 9001 certified production process (ADLINK manufacturing facilities)
- Electrical Safety: Conforms to low-voltage directive requirements for signal-level interconnects
- EMI/RFI Protection: Shielded design meets typical industrial EMC requirements
- Quality Assurance: 100% continuity and insulation resistance tested before shipment

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

Support:
- Technical documentation, pinout diagrams, and compatibility guides available from ADLINK’s official website
- Customer support via ADLINK technical service channels for installation and troubleshooting assistance

Maintenance:
- Periodic inspection recommended to ensure connector integrity and cable jacket condition
- Clean connectors with dry, lint-free cloth; avoid solvents or abrasive materials
- Store in a dry, dust-free environment when not in use

Updates & Replacements:
- The ACL-10137-4 may be replaced by equivalent or updated models in the ADLINK ACL cable series as technology evolves
- Backward compatibility maintained with existing ADLINK DAQ and I/O hardware

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Summary:
The ADLINK ACL-10137-4 DB37 Cable (4m, Male/Male) is a robust, shielded interconnect solution engineered for industrial and laboratory environments requiring reliable DB37 connectivity. Its 4-meter length, dual male connectors, and high-quality construction make it ideal for connecting ADLINK data acquisition cards, digital I/O modules, and external terminal boards. With superior shielding, durable materials, and compliance with industry standards, the ACL-10137-4 ensures consistent performance, signal integrity, and long service life in demanding applications.

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