NOYAFA NF-388 Ethernet/USB/Coaxial Cable and PoE Tester — 8 cable identifiers, test range up to 1000 m

NOYAFA NF-388 is a handheld tester designed for Ethernet, USB and coaxial cables with integrated PoE detection and an 8-identifier remote kit. The device evaluates continuity, wiring configuration and common faults on twisted-pair and coaxial lines, and detects Power over Ethernet presence. With a claimed test range up to 1000 m and multiple remote identifiers, the NF-388 assists technicians in locating cable runs, verifying installations and speeding up fault diagnosis in network and CCTV/AV environments.

Advantages

The NOYAFA NF-388 combines multi-protocol cable testing in a compact handheld unit that supports Ethernet, USB and coaxial connections and includes PoE presence checking. Its set of eight remote identifiers enables tracing and distinguishing multiple runs from a single central unit. The tester reports continuity and wiring faults, reducing the time needed to find opens, short circuits, crossed pairs and miswires. A long test range expands usefulness for larger installations and distributed wiring closets.

Suitable for

• Installation and verification of Ethernet cabling in offices and data rooms
• Troubleshooting network links and identifying wiring faults
• Testing and locating coaxial runs for CCTV and AV systems
• Checking PoE presence before connecting IP cameras, phones or access points
• Labeling and tracing multiple cable runs during deployment

Key specifications

• Supported cable types: twisted-pair (Ethernet), USB, coaxial
• Remote identifiers: up to 8 units for cable tracing and identification
• Maximum test range: up to 1000 meters for continuity/tracing functions
• Functions: continuity test, wiring fault detection (open, short, crossed pairs, miswire), PoE presence detection
• Form factor: handheld tester with separate remote probes/identifiers

How to use

Connect the main unit to the cable under test using the appropriate port for Ethernet, USB or coaxial termination. Deploy one of the remote identifiers at the far end of the cable you wish to trace, then use the main unit’s tracing mode to detect the corresponding identifier and confirm continuity. For PoE checking, attach the tester to the Ethernet link; the unit will indicate whether power is present on the line. Inspect displayed wiring status to identify opens, shorts or miswired pairs and follow the tester’s indications to localize faults.

Usage recommendations

Use the NF-388 in accordance with cable type limits and ensure connectors are properly terminated before testing. When testing live networks, verify whether connected devices may be affected by brief probing and use isolation or scheduled downtime if needed. For long cable runs, place remote identifiers at accessible termination points and mark identified runs to simplify future maintenance.