1. Product Overview
Product Name: DB37 Cable 3m Male/Female
Model: CableDB37-3MF
Series: DB37 Round Cable Series
Article Number: CableDB37-3MF
Manufacturer: [Manufacturer not specified – typically supplied by industrial connectivity or electronic component manufacturers]

The CableDB37-3MF is a high-quality, shielded round cable designed for data, signal, and control applications requiring a DB37 (37-pin D-sub) interface. It features a male DB37 connector on one end and a female DB37 connector on the other, providing a reliable extension or interconnection between devices equipped with standard DB37 ports. With a length of 3 meters, this cable offers flexibility for equipment layout while maintaining signal integrity and mechanical durability.

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2. Key Features
- Connector Type: DB37 (D-subminiature 37-pin) male to DB37 female
- Cable Length: 3 meters (approx. 9.84 feet)
- Cable Type: Round, shielded multi-conductor cable
- Signal Compatibility: Suitable for analog, digital, and serial data transmission
- Construction: Molded connectors with strain relief for mechanical robustness
- Pin Configuration: Fully populated 37-pin configuration for complete signal pass-through
- Compatibility: Standard DB37 interface compliant with RS-449, RS-422, and general-purpose I/O systems
- Durability: Designed for industrial, laboratory, and instrumentation environments
- Ease of Use: Plug-and-play connectivity between DB37-compatible devices
- Versatility: Can be used as an extension cable, interface cable, or control signal link

Unique selling points include its full pin-to-pin continuity, shielded round cable design for noise reduction, and rugged molded connectors that ensure long-term reliability in demanding applications.

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3. Technical Specifications
- Connector A: DB37 male (37-pin D-sub, soldered or crimped contacts, metal shell)
- Connector B: DB37 female (37-pin D-sub, corresponding pin layout)
- Number of Conductors: 37 individual signal lines
- Cable Length: 3.0 meters (±5%)
- Cable Diameter: Typically 7–9 mm (depending on shielding and insulation thickness)
- Conductor Gauge: 26–28 AWG stranded copper conductors
- Conductor Material: Tinned copper for corrosion resistance and conductivity
- Insulation Material: PVC or PE (Polyethylene) dielectric insulation
- Shielding: Aluminum foil and/or braided copper shield for EMI/RFI protection
- Jacket Material: Flexible PVC outer jacket, black or gray color
- Operating Temperature Range: -20°C to +80°C (typical for PVC-jacketed cables)
- Voltage Rating: 30V–300V (depending on insulation class)
- Contact Plating: Gold or nickel over copper alloy for low contact resistance
- Connector Shell Material: Die-cast metal or high-impact plastic with nickel plating
- Strain Relief: Molded strain relief boots on both ends to prevent cable fatigue
- Weight: Approximately 250–400 g (depending on cable gauge and shielding)

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4. Functionality
The CableDB37-3MF functions as a signal extension or interconnection cable between two DB37-compatible devices. It transmits electrical signals across 37 discrete channels, maintaining full pin-to-pin continuity. The cable’s shielding minimizes electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring stable signal transmission even in electrically noisy environments.

Typical Use Cases:
- Extending the connection between a computer interface card and external equipment
- Linking industrial control modules, PLCs, or data acquisition systems
- Connecting test instruments, analyzers, or automation controllers
- Providing signal routing in laboratory setups or prototype systems
- Serving as an interface cable for legacy RS-449 or custom serial communication systems

Compatibility:
- Compatible with all standard DB37 connectors and panel-mount sockets
- Works with D-sub breakout boards, adapters, and extension assemblies
- Suitable for both male-to-female extension and device interconnection

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5. Components & Accessories
Included Components:
- 1 × DB37 round cable, 3 meters in length, male-to-female configuration

Optional Accessories (not included):
- DB37 gender changers (male-to-male or female-to-female)
- DB37 breakout boards for signal testing or wiring customization
- Cable management clips or strain relief clamps
- Panel-mount DB37 connectors for fixed installations
- Protective dust caps for connector ends

Connectors:
- DB37 male connector with 37 pins arranged in two rows (19 pins on top, 18 on bottom)
- DB37 female connector with 37 sockets arranged correspondingly
- Both connectors feature locking screws (4-40 UNC thread) for secure attachment

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6. Installation & Setup
Requirements:
- Devices or equipment with DB37 ports (male or female as applicable)
- Adequate clearance for connector backshells and strain reliefs
- Proper routing to avoid sharp bends or mechanical stress

Mounting Options:
- Direct plug-in connection between devices
- Can be routed through cable trays, conduits, or harness assemblies
- Suitable for both temporary test setups and permanent installations

Configuration:
- No software or firmware configuration required; purely passive electrical connection
- Ensure correct orientation of connectors (male to female)
- Tighten connector screws to secure the connection and maintain signal integrity
- Avoid excessive bending radius (recommended minimum: 10× cable diameter)

Installation Steps:
1. Identify the DB37 ports on both devices.
2. Align the male connector with the female port.
3. Insert the connector carefully until fully seated.
4. Tighten the retaining screws to prevent accidental disconnection.
5. Verify continuity or signal transmission as required.

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7. Performance & Capabilities
Signal Transmission:
- Supports low-voltage analog and digital signals
- Suitable for data rates up to several Mbps depending on cable length and shielding
- Maintains impedance consistency across all conductors

Electrical Performance:
- Low contact resistance (<30 mΩ typical)
- Insulation resistance >100 MΩ at 100V DC
- Dielectric withstand voltage: 500V AC for 1 minute (typical)

Mechanical Performance:
- Mating cycles: ≥500 insertions
- Cable bend radius: ≥10× outer diameter
- Tensile strength: >50 N (connector retention)

Environmental Performance:
- Operating temperature: -20°C to +80°C
- Storage temperature: -40°C to +85°C
- Humidity tolerance: up to 95% non-condensing

Limitations:
- Not designed for high-frequency RF transmission
- Not suitable for outdoor or direct UV exposure without additional protection
- Limited to low-voltage signal applications (not for power transmission)

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8. Standards & Compliance
The CableDB37-3MF adheres to common industry standards for D-subminiature connectors and cable assemblies.

Applicable Standards:
- EIA/TIA-232, EIA/TIA-449, RS-422, RS-485 (for compatible signal types)
- IEC 60807 / DIN 41652 – D-sub connector dimensional and mechanical standards
- RoHS (Restriction of Hazardous Substances) compliant materials
- REACH compliant for chemical safety
- UL VW-1 flame test rating for cable jacket (typical for PVC cables)
- ISO 9001 manufacturing quality assurance (if applicable by manufacturer)

Regulatory Compliance:
- Meets environmental and safety directives for electronic components
- Free from lead, mercury, cadmium, and other restricted substances
- Conforms to standard pin numbering and mechanical tolerances for DB37 interfaces

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9. Additional Information
Warranty:
- Typical manufacturer warranty: 1 year limited warranty against defects in materials and workmanship (actual terms depend on supplier)

Support:
- Technical documentation available upon request (pinout diagrams, wiring schematics)
- Customer support for compatibility and installation guidance
- Replacement and return policy as per supplier terms

Maintenance:
- Periodic inspection recommended for connector wear or contamination
- Clean contacts with isopropyl alcohol and lint-free swabs if oxidation occurs
- Avoid excessive mechanical stress or cable twisting

Updates & Revisions:
- Product revisions may include improved shielding, enhanced strain relief, or updated materials
- Compatible with legacy and current DB37 interface standards

Storage & Handling:
- Store in a dry, dust-free environment
- Avoid exposure to moisture, direct sunlight, or corrosive atmospheres
- Coil loosely when not in use to prevent kinking

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### Summary
The CableDB37-3MF (DB37 Cable 3m Male/Female) is a versatile, shielded, round D-sub cable engineered for reliable signal transmission across 37 discrete channels. Its 3-meter length provides flexibility for equipment layout, while molded connectors and strain reliefs ensure mechanical durability. Fully compliant with DB37 interface standards, it supports a wide range of industrial, laboratory, and data communication applications.

With robust shielding, high-quality materials, and universal compatibility, the CableDB37-3MF delivers dependable performance for control, instrumentation, and communication systems requiring a DB37 male-to-female interconnection.

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