Compact Port Mapping Cable Tester | Durable twisted-pair cables for networking | HCI

Compact Port Mapping Cable Tester | Top-Quality Patch Panels - ETL Certified - B2B Networking Solutions

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Compact Port Mapping Cable Tester | ETL certified patch panel suppliers | HCI

Located in Taiwan since 1975, HSING CHAU INDUSTRIAL CO., LTD. is a manufacturer of wireless networking components for network installation and maintenance. Their main network infrastructure and connectivity solutions include, Compact Port Mapping Cable Tester, keystone jacks, patch panels, patch cords, modular connectors, RJ45 couplers, wall outlets and faceplates, twisted pair cables, and USB couplers supporting advanced 802.3bt 100W 4PPoE, certified under IEC-60512-99-002, ideal for wholesale buyers who require the latest networking technology.

Enhance your network with HCI's world-class B2B solutions. Our U.S.-certified and patented Keystone Jacks, Patch Panels, and Patch Cords ensure superior quality. Ideal for global business buyers, our Taiwan-made RJ45 couplers and twisted pair cables offer unmatched reliability and performance for bulk purchases. HCI offers unmatched performance in networking hardware. Improve your business connectivity with our trusted, high-quality products.

HCI has been offering customers ETL certified patch panels since 1975, both with advanced technology and 48 years of experience, HCI ensures each customer's demands are met.

Compact Port Mapping Cable Tester


Extreme compact RJ45 network cable tester. Lightweight, easy to carry, and cost-saving. Fundamental pair-to-pair and grounding continuity tests solve over 90% of cable wiring problems, e.g., short, open circuits, and miswiring. Substantial port mapping and unique resistance measurement further offer value-adding functions which only offered by top-end testers on the market. A coupler and an additional patch cable are included in aid of detecting ports that have an RJ-45 plug (MPTL for instance) at the remote end.

Product includes:
 Tester main unit x 1 (AA battery sold separately)
 Remote plug x 1
 Port mapping plugs #1-8 x 1 set
 Female to female shielded RJ-45 coupler x 1
 Shielded patch cord x 1

Compact Port Mapping Cable Tester


  1. Pair-to-pair (includes Grounding) continuity test
  2. Detecting unusual high-resistance (e.g., loose connection, CCA cable, excessively lengthy channel)
  3. Port mapping up to 8 ports

Key Features:

  • Essential continuity check on each RJ-45 port
  • Resistance check on power transmission capability for POE application. Detects intra-pair loop resistance over 25 Ohm (+/- 2 Ohms). Detects inter-pair resistance unbalance more than 10% (+/- 2 Ohms)
  • Smart port mapping finds remote ports easily 

Other Features:

  • Simple 2-button operation
  • Low battery consumption
  • 0.5s fast detection cycle
  • Stackable remote Port ID design for easy storage
  • 20s Auto power off
  • 1 year warranty


Temperature: -10°C~60°C Humidity: 10%~90%RHWeight: 35g not including battery


Files Download
  • Drawings-CT-055B

    2-in-1 Continuity and Port Mapping Micro Express RJ45 Network Cable Tester Drawings

  • User Manual-CT-055B
    User Manual-CT-055B

    2-in-1 Continuity and Port Mapping Micro Express RJ45 Network Cable Tester User Manual