RJ11 6P4C to XHP-4 extension spring cable
RJ11 6P4C to XHP-4 Extension Spring Cable
Designed for professional telecom applications, our RJ11 to XHP-4 cable features 26AWG stranded copper conductors with 95% braided shielding for minimal crosstalk. The spring-loaded design withstands 10,000+ flex cycles while maintaining ≤0.5dB signal loss across 300-3400Hz voice band. Ideal for PBX systems, modems, and telecom infrastructure requiring reliable 4-wire connectivity.
Key Features: • Spring-loaded strain relief • Gold-plated contacts (50μ") • UL2464 PVC jacket • RoHS compliant construction
Technical Specifications
- Product ID: 390
- Connector A: RJ11 6P4C Male
- Connector B: XHP-4 Female
- Conductor: 26AWG stranded copper
- Shielding: 95% braided shield
- Jacket Material: UL2464 PVC
Customization Options
Cable length: Custom lengths available (standard 1m/3ft) Connector types: Alternate pin configurations possible Color options: Custom jacket colors upon request
Recommended Applications
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PBX Telephone Systems
Connecting desk phones to wall jacks in office environments
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DSL Modems
Extending connections between modems and phone line interfaces
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Security Systems
Interfacing alarm panels with telephone line monitoring
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Telecom Equipment
Patch panel connections and test equipment interfaces
Performance Advantages
Durable Spring Design
Coiled spring section withstands repeated stretching (15+ cm extension)
Reliable Connectivity
Gold-plated contacts ensure ≤10mΩ resistance for clear signal transmission
EMI Protection
Braided shielding reduces interference by 85% compared to unshielded cables
Wide Compatibility
Works with Cisco, Avaya, Nortel, and most standard telecom equipment
Technical Reference
Pin Configuration
- RJ11 Pin 3: Transmit + (Tip) to XHP-4 Pin 1
- RJ11 Pin 4: Transmit - (Ring) to XHP-4 Pin 2
- RJ11 Pins 2/5: Optional secondary pair (when configured)
Compatibility Note
For use with 4-wire telephone systems (2-pair). Not compatible with 6-wire RJ12 configurations. Spring section provides 30% extension capability without signal degradation.
Tested compatible with Cisco 7900 series phones, Avaya IP Office, and standard analog modems
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Quality Assurance
Each cable undergoes continuity testing with Fluke network testers to ensure proper pinout and signal integrity before shipment




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How to custom your own wire harness?
Send your sample or drawing/schematic for quote price→ Feedback with quotation(1~3 days) → Confirm quotation → Arrange sample you for approval→ [Make mold if needed (7 days) →Mold test] → Making samples(1~3 days)→Samples test(Approval) →place order for Mass production(2~3 weeks)→Quality checking→Packing →Delivery →After Service →Repeat Order.