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  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
  • db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone
db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone

db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone

$0.18-$0.30/ Piece|1000 Piece/Pieces(Min. Order)
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db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Adapter Functionality: Converts between DB9 serial (RS232) and RJ11 telephone connectors, enabling seamless connectivity between legacy systems and modern telephone infrastructure.
  • Versatile Connectivity: Supports dual-use scenarios for telephone line integration and serial communication, bridging gaps between telecommunications and industrial control systems.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With corrosion-resistant brass connectors and a durable plastic sheath, you can ensure reliable connections and longevity in indoor environments. The metallic connectors resist wear and tear, while the reinforced outer casing protects internal wiring from damage.

  • 2. Secure Interactive Design

    • With secure, metallic connectors designed for reliable data transmission, you can maintain stable connections without frequent disconnections. The DB9 and RJ11 interfaces are engineered for precise alignment, ensuring seamless compatibility with serial and telephone systems.

  • 3. Extended Reach Performance

    • With a 10-meter length, you can extend telephone connectivity across larger indoor spaces compared to shorter standard cables*.

  • 4. Versatile Scenario Solutions

    • Designed for indoor telephone systems, you can seamlessly connect serial devices to telephone jacks, enabling efficient setup of telephone infrastructure in offices or homes. The dual-connector design supports both RS232 serial communication and telephone line integration.

  • 5. Compliance with Telecommunications Standards

    • Constructed with materials compliant with telecommunications safety standards, you can ensure reliable and safe use in home or commercial environments*.

Product details

db9 rj10 cable rs232 db9 serial to rj11 adapter for telephone

The SM135-B10M DB9 to RJ11 adapter cable bridges serial communication and telephone systems with durable construction and versatile connectivity. Designed for indoor use, it enables seamless integration of legacy serial devices (RS-232) with modern telephone infrastructure, ensuring reliable data and voice transmission.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialDurable plastic sheath, metallic connectorsWithstands wear in office/industrial settings
ConnectorsDB9 male (RS-232) to RJ11 (telephone)Adapting serial devices to telephone ports
Length10 metersFlexible placement in standard office layouts
CompatibilityTelephones, serial peripheralsLegacy system upgrades or hybrid networks
CertificationRoHS compliantMeets global safety and environmental standards

Customization guide

Adjustable connector types (e.g., RJ10/RJ11) and lengths (5m–20m) to meet specific telephony or serial communication needs.

Get inspired

With this hybrid cable, you can connect older serial devices to modern telephone systems, enabling efficient data transfer or voice communication in spaces where legacy infrastructure coexists with contemporary setups.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Length10 meters15 meters (+50%)20 meters (+100%)
Connector DurabilityStandardReinforced (+20% lifespan)Military-grade (+40%)
Temperature Range0°C–40°C-10°C–50°C (+20% tolerance)-20°C–60°C (+50%)
CertificationsRoHSRoHS + FCCRoHS + FCC + MIL-STD

Supplier's note

  1. Technical Breakthroughs:

    • Reinforced Connectors: The Advanced/Pro models feature corrosion-resistant brass, reducing failure rates by 30% in humid environments.
    • Extended Length: The Pro model’s 20m reach outperforms industry standards, ideal for large office layouts.
    • Multi-Certification: Pro-grade compliance ensures compatibility with global industrial and military-grade systems.

  2. Version Selection Guidance:

    • Base Model: Best for standard office setups requiring basic telephony and serial connectivity.
    • Advanced Model: Suited for mixed indoor/outdoor environments (e.g., warehouses) needing enhanced durability.
    • Pro Model: Tailored for industrial or military applications where extreme temperatures and rugged use are critical.

Example: With the Pro model’s MIL-STD certification, you can deploy this cable in harsh outdoor conditions, ensuring uninterrupted communication for security systems or field equipment.

Frequently asked questions

  • Which DB9 to RJ11 adapter suits small office telephone systems?

  • How do I maintain the metallic connectors on a DB9 to RJ11 adapter?

  • What materials make this DB9 serial cable durable for indoor use?

  • Can I customize the SM135-B10M cable for specific telephone applications?

  • Is this RS232 DB9 to RJ11 adapter FCC/CE certified?

  • Which telephone systems work with the DB9 serial to RJ11 adapter?

  • Does the 10-meter length of the DB9 to RJ11 cable cover typical office setups?

  • What makes this cable better for telephone systems than generic adapters?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Ethernet Cables (RJ45)Office LAN, indoor networkingStandard 10m length (Industry), Our Base: 10m, Advanced: 15m ▲ (ISO 11801 compliant)Advanced ▲ extends reach for larger spaces; meets industry standardsBase model may limit coverage in expansive offices
Serial Communication CablesLegacy devices, industrial controlsStandard DB9 connectors (Industry), Base: Brass-plated, Advanced: Gold-plated ▲ (ASTM B209)Gold-plating ▲ reduces corrosion in harsh environmentsBase connectors may degrade in humid/dusty conditions
Hybrid/Adapter CablesDual connectivity needs, telephone systemsDual RJ45 + DB9 connectors (Industry: often separate cables), Integrated ▲ (IEC 60603-7)Single cable ▲ simplifies setup for mixed systems (e.g., VoIP + serial ports)Higher cost than buying cables separately
Telephone AdaptersVoIP systems, telephone infrastructureStandard RJ11 compatibility (Industry), Our: RJ45 + DB9 combo ▲ (TIA/EIA-568)Versatile ▲ for linking Ethernet networks to legacy telephone systemsLess common in standard setups; requires configuration expertise
Industrial Networking CablesFactory automation, rugged environmentsStandard PVC jacket (Industry), Base: HDPE, Advanced: Armored ▲ (MIL-STD-810)Armored ▲ resists crushing/damage in industrial settingsHeavier and bulkier than non-armored cables
Customizable CablesTailored solutions, specialized systemsFixed lengths (Industry), Our: Customizable lengths ▲ (IEC 60228)Custom ▲ lengths and connectors for precise system integrationLonger lead times and higher upfront costs

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