CL21E1B20, Huawei CL21E1B20 Trunk Cable, 20m/120ohm/LSZH

  • Brand: Huawei
  • Model: CL21E1B20
  • 100% Genuine
    100% Genuine
    Original, factory-verified
    3-Year Warranty
    3-Year Warranty
    Extended, enterprise-grade
    23 Years Expertise
    24 Years Expertise
    Proven, deployment-focused
  • Condition
    • Original New
    expert
    Certified Expertise Builds Trust
    CCIE · JNCIE · NSE7 · ACDX · HPE Master ASE · Dell Server/AI Expert
    • Faster Delivery, Globally Ready

      Faster Delivery, Globally Ready

      20+ years of supply chain expertise for faster multi-stop delivery with smooth customs.

      48H Worldwide Shipping
      10+ Global Warehouses
    • Keep Projects On Time

      Keep Projects On Time

      Reliable availability and real-time shipment visibility to keep every critical IT project on schedule.

    • Leading Global Distributor Since 2002

      Leading Global Distributor
      Since 2002

      A global ICT bridge delivering authentic hardware and trusted service for over 20 years.

        21500+ Enterprise Clients Served200+ Countries & Regions Covered
    • Worry-Free Coverage with RSCare

      Worry-Free Coverage with RSCare

      3-Year warranty for enterprise hardware, including advanced RMA, diagnostics, spare parts support, and OEM service compatibility.

      Cisco SmartNet
      HPE Foundation Care
      Dell ProSupport
      Juniper Care
      Fortinet Support
    • Your Trusted Genuine Source

      Your Trusted Genuine Source

      Authorized partnerships with 30+ brands, including Cisco, HPE, Dell, Juniper, and Fortinet.

      100% Authentic Products
      100,000+ Multi-Brand SKUs Available
    Overview

    Huawei CL21E1B20 Overview

    The Huawei CL21E1B20 is a carrier-grade trunk cable designed for E1 telecommunications backhaul. This 20m trunk cable supports 21E1 circuits over 120 ohm balanced impedance, ensuring stable TDM transmission for access and aggregation networks. Its 0.4mm conductors and Anea 96F structure are protected by an LSZH (Low Smoke Zero Halogen) outer sheath, minimizing toxic emissions in indoor deployments and meeting stringent RoHS, CE, and UL compliance requirements.

    Product Highlights

    20m
    Cable Length
    21E1
    E1 Circuits
    120ohm
    Impedance

    Product Applications Scenarios

    Service Providers
    Used for 21E1 backhaul, this trunk cable stabilizes legacy TDM links, reducing truck rolls and protecting existing SDH investments by up to 30%.
    Enterprise Network
    Ideal for PBX and voice gateways, the 120 ohm balanced design keeps E1 lines clean, cutting troubleshooting time for IT teams by around 25%.
    Public Infrastructure
    In transport and utilities, LSZH and IP67 protection help maintain reliable E1 signaling while improving site safety and compliance levels.

    Product Features Comparison

    Huawei Huawei Huawei Cisco
    Model CL21E1B20, Huawei CL21E1B20 Trunk Cable, 20m/120ohm/LSZH CL21E1B30, Huawei Trunk Cable, 30m/120ohm/21E1 SS-DL-16E1(D)-120-30, Huawei SS-DL Series Trunk Cable, 16E1/30m/120ohm CAB-SS-V35MT-EXT, Cisco CAB-SS-V35MT-EXT Cable, V.35 Male DTE/Extended Control/High-quality
    Brand Huawei Huawei Huawei Cisco
    Compatible Models n/a n/a n/a Cisco Devices
    Accessory Type Trunk Cable Trunk Cable Trunk Cable V35 Male DTE Cable
    Connector Type 120CC42P0.4P430U(S)-I Customizable HM3X4X6 V35 Male
    Mounting Method n/a n/a Subrack Downside n/a
    Certification CE, UL IEC Standards n/a None

    Optional Add-ons

    Model Number Description
    CL21E1B30 Huawei trunk cable, 30m 120ohm 21E1, extended reach for E1 backhaul
    SS-DL-16E1(D)-120-30 Huawei SS-DL series 16E1 trunk cable, 30m 120ohm for subrack downside
    SC-SC-1-Meter-Singlemode-Fiber-Optic-Cable Cisco single-mode SC/SC 1m fiber patch, for E1 mux and SDH optical uplink

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Huawei CL21E1B20 Specification

    Model
    CL21E1B20
    Brand
    Huawei
    CL21E1B20 Specifications Brand
    Huawei
    Product Type
    Trunk Cable
    Cable Length
    20m
    Impedance
    120 ohm
    E1 Circuits
    21E1
    Conductor Diameter
    0.4mm
    Fiber Type
    Anea 96F
    Conductor Type
    120CC42P0.4P430U(S)-I
    Temperature Range
    +45掳C
    Outer Sheath Material
    LSZH (Low Smoke Zero Halogen)
    Application
    Telecommunications
    Color
    Black
    Jacket Diameter
    Varies
    Shielding
    Yes
    Flame Retardant
    Yes
    Voltage Rating
    300V
    Environmental Protection
    IP67
    Insulation Material
    Polyethylene (PE)
    Compliance
    RoHS
    Certifications
    CE, UL

    Get more information

    Discover unbeatable prices and fast shipping for the CL21E1B20, Huawei CL21E1B20 Trunk Cable, 20m/120ohm/LSZH . Access the detailed CL21E1B20, Huawei CL21E1B20 Trunk Cable, 20m/120ohm/LSZH datasheet and ensure you're getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via live chat or email us at [email protected].

    Quality Certifications

    Need Help? Technical Experts Available Now.

    • +1-626-655-0998 (USA)
      UTC 15:00-00:00
    • +852-2592-5389 (HK)
      UTC 00:00-09:00
    • +852-2592-5411 (HK)
      UTC 06:00-15:00
    Need Help? Technical Experts Available Now.
    Q&A

    Questions & Answers

    What accessories are available for the CL21E1B20 trunk cable?

    Accessories for the CL21E1B20 trunk cable include cable management systems, connectors, and protective covers, all compatible with Huawei networking solutions.

    How does the CL21E1B20 trunk cable compare with other similar Huawei cables?

    The CL21E1B20 trunk cable stands out due to its specific 21 E1 channels, 0.4mm diameter, and LSZH material, making it ideal for specific telecom applications compared to other cables.

    Is the CL21E1B20 trunk cable environmentally friendly?

    Yes, the CL21E1B20 features LSZH (Low Smoke Zero Halogen) material, which minimizes toxic emissions in case of fire, making it safer for the environment.

    Is router-switch.com a reliable distributor?

    Absolutely. As a multi-brand authorized distributor, router-switch.com is directly certified by leading technology manufacturers. We guarantee 100% genuine products, competitive pricing, and full manufacturer warranties and support.

    Warranty
    • Your Trusted Global ICT Partner

      Delivering reliable, cross-border fulfillment with 20+ years of expertise, backed by rigorous QC, fast logistics, and worldwide warehousing.
      Global warehousing
      Global warehousing
      10+ hubs positioned for fast international dispatch and stable availability.
      Seamless cross-border
      Seamless cross-border
      QC-verified packing and predictable delivery via FedEx, DHL, UPS.
      Your Trusted Global ICT Partner
    • ICT Tools Hub for Confident Monitoring

      ICT Tools Hub for Confident Monitoring

      Stay informed on product lifecycle status and real-time inventory availability—supporting confident planning, sourcing, and operational execution.
      EOL/EOSL Checker
      Verify product lifecycle status to plan purchases and avoid EOL/EOSL risks.
      Request VIP Inventory Portal Access
      Connect via live chat for VIP access to real-time inventory on priority SKUs.
    • Certified Experts Across Leading Vendors

      Professional guidance for network, security & data center builds, delivered by certified experts with extensive, hands-on deployment experience.
      Multi-vendor engineering
      Multi-vendor engineering
      Certified expertise across Cisco, HPE, Aruba, Dell, Juniper, Huawei and Fortinet.
      Deployment-ready guidance
      Deployment-ready guidance
      Faster, safer rollouts with project-focused engineering guidance.
      Certified Experts Across Leading Vendors

    The Choice of 21,500 +Global Customers

    • Ford
    • Disney
    • Nestle
    • Toyota
    • Walmart
    • Philips
    • Ups
    • Huatt
    • Hsbc
    • Novartis
    • Siemens Healthineers
    • Bt
    • Reference Johnson
    • T
    • Att
    • Lgu
    • Sk Telecom
    • Veerizon
    Industry-Leading Warranty Coverage You Can Trust
    • 100% Low Price Guarantee
      100% Low Price Guarantee
      Router-switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
    • 100% Quality Assurance
      100% Quality Assurance
      All items are brand new, original, and factory-sealed.
      Upon request, each unit can be fully tested and verified by a Huawei-certified engineer to ensure perfect working condition before shipment.
    • 100% Money-Back Guarantee
      100% Money-Back Guarantee
      If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly.
      Visit Return Policy page for more information.
    • Free Huawei Technical Support
      Our Huawei-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
    • Flexible & Secure Payment and Shipping
      Flexible & Secure Payment and Shipping
      We support multiple secure payment and logistics options, backed by industry-leading verification:
      • Pay by wire transfer.
      • Pay with your paypal.
      • Pay with your Visa credit card.
      • Pay with your Mastercard credit card.
      • Pay with your Discover Card.
      • Pay by American Express.
      More
      • mcafee-secure
      • verisign-secured
      • pci-dss
      • ssl-encryption
      Visit How to Pay page for more information
    Warranty Coverage & RMA Instructions
    • Extended, Worry-Free Warranty Coverage
      Extended, Worry-Free Warranty Coverage
      • Factory New Sealed Enterprise Hardware: 3 Years
      • Factory New Sealed Consumer Devices: 1 Year
      Visit Warranty Policy page for more information
    • How to Get Support
      How to Get Support
      If you encounter issues with products, please reach out to your dedicated sales representative. They will assist with diagnostics, remote troubleshooting, and RMA processing if necessary.
      Visit Contact Us page for more support options.

    Best-Fit Solutions for Your Network

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Deploy DeepSeek-V3/R1: Powerful AI, Low Cost

    Expert-configured AI solution: Same power, 90% savings—multi-scenario flexibility with Dell/Huawei/Lenovo options.

    AI
    Beyond Bandwidth: The 100G+ Data Center Architecture

    Beyond Bandwidth: The 100G+ Data Center Architecture

    The must-have 100G foundation - AI-ready growth, zero-latency performance

    Data Center
    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    400G/800G Ethernet Switch: Maxmize Margins via AI-Ready Solutions

    High-Profit data center switches from Cisco, Huawei, Mellanox & Juniper.

    Ethernet Switch
    Download
    Model Datasheet