UNI-T UT685A KIT TDR Cable Tester

Description

UNI-T UT685A KIT TDR Cable Tester The UNI-T UT685A KIT is a professional cable testing instrument designed for network installation, telecommunications, and troubleshooting applications. It supports CAT5/CAT6 twisted-pair cables, UTP, FTP, and SSTP cables, allowing technicians to check wiring sequences, detect polarity, test crimped connectors, measure cable length, and identify the distance to cable faults. Its TDR-based cable fault location capability helps simplify the diagnosis of open circuits and short circuits, reducing troubleshooting time in structured cabling installations. The tester also provides PoE testing, Ethernet port status detection, port flashing, full-duplex and half-duplex detection, and cable tracing functions. Its 2.8-inch LCD, built-in hazardous-voltage warning, non-contact voltage detection (NCV), and USB Type-C charging port make it a practical tool for network technicians, IT administrators, telecom installers, and maintenance professionals. Features: Multifunctional cable testing and fault diagnosis Supports CAT5/CAT6 twisted-pair network cables Compatible with UTP, FTP, and SSTP cables Wire mapping and polarity detection Cable crimping test Cable length measurement and fault distance identification PoE voltage and standards testing Ethernet port flashing and connection status checking Full-duplex and half-duplex detection RJ11 and RJ45 cable tracing Non-contact voltage detection Hazardous-voltage warning Large LCD for measurement results USB Type-C charging interface Automatic power-off function Reverse or incorrect wiring diagnosis Specifications: Technical Specifications Models UT685A KIT UT685B KIT Applicable Cables 1CAT5/CAT6 twisted pair; 2, UTP (unshielded); 3, FTP (foil-shielded); 4, SSTP (double-shielded) 1, CAT5/CAT6 twisted pair; 2, UTP (unshielded); 3, FTP (foil-shielded); 4, SSTP (double-shielded); 5, Coaxial cable: 50Ω, 75Ω, 93Ω ​Wire Mapping Live Wire Testing 1, Polarity detection; 2, Warns of hazardous voltage (>10V) 1, Polarity detection; 2, Warns of hazardous voltage (>10V) 1-to-1 Wire mapping 1, Crimping/mapping interface; 2, Receiver RJ45 1, Pairing interface; 2, Receiver RJ45 ​Crimping Test​ Test Type 8-core N/A Response Time ≤1s Minimum Detectable Length 10cm ​Length Testing​ Open-circuit Wire Length 2.5–300m: 1m 500m: 0.3m Resolution ≤20m: ±1.6m ±4% or 0.6m (2 ft), whichever is greater 20–100m: ±2.4m NVP uncertainty adds extra error >100m: ±3.2m Short-Circuit position Detection Identifies fault distance Identifies fault distance ​POE Testing​ Working Voltage Range DC5~60V DC5~60V Standards Supported 802.3AF、802.3AT、802.3BT 802.3AF, 802.3AT, 802.3BT ​Port Testing​ Indication method via LCD via LCD Full/Half-Duplex Detection Yes No Auto/Negotiation Support Yes Yes Switch Types 10M/100M/1000M 10M/100M/1000M Port Detection Checks Ethernet port connection status Checks Ethernet port connection status Wire tracing Measurable wire length (max) RJ11 3000m RJ45 1000m Working Frequency 125kHz digitally modulated signal (high accuracy) Tone Variations 2 types Tracing Mode Anti-interference Display 2.8-inch LCD digital screen Input Protection 70VDC Power Supply 1.5V AA batteries ×3; Low battery warning; Auto Shutdown Normal mode: 10min; Cable location mode: 60min Drop Test 1m Operating environment 0~45°C; 20~75% RH (N.C) Storage environment -20~60°C; 10~90% RH (N.C) Certificates CE, RoHS Applications: Ethernet network installation and maintenance CAT5/CAT6 cable testing Network cable fault location Open-circuit and short-circuit troubleshooting RJ45 connector crimping verification Telephone cable tracing and testing PoE network installation and troubleshooting Server room and data center maintenance Telecom infrastructure installation Network switch port identification Structured cabling inspection Package Includes: Documents: Datasheet. User Manual.

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