The Fluke Networks 990VDSL CopperPro Series II is a portable handheld loop tester for troubleshooting and qualifying copper-based broadband and POTS lines. It delivers comprehensive testing across VDSL2, ADSL2+, ADSL, HDSL, HDSL2, HDSL4, ISDN, T1, E1, DDS, and traditional voice services. Purpose-built for outside plant technicians and telecom engineers, it combines advanced fault location, noise diagnostics, and service qualification in a single instrument.
Technical Specifications
• Bandwidth: up to 18 MHz for ADSL2+ and VDSL support
• Leakage stress test capability: up to 200 V
• AC/DC voltage measurements: snapshot and continuous modes
• Loop resistance and capacitance fault measurement
• DC loop current monitoring
• Time domain reflectometry (TDR) for fault distance calculation
– Key Features
• Broadband Testing: VDSL2 and ADSL2+ modem options (ATU-R and ATU-C) verify service connectivity. Wideband spectral analysis with interference masks and impulse noise reduction for VDSL channels.
• Fault Diagnostics: TDR locates shorts, opens, grounds, bridge taps, and high-resistance faults. Load coil detection with distance estimation and impedance-versus-frequency graphing. RFL meter identifies shorts, crosses, and grounds. Opens meter measures capacitive pair length.
• POTS & Digital Services: Automated POTS qualification tests. Full support for DDS, ISDN, T1, HDSL variants.
• Noise Analysis: Broadband noise detection including crosstalk and impulse characterization. Voice frequency and wideband longitudinal balance measurements. VF loss and noise quantification across metallic and power influence sources.
• Signal Generation: Swept and composite signal generation capabilities.
• Data Export: RS-232 connectivity to PC or printer for results storage and long-term archival.
– Typical Applications
• Outside plant copper line qualification and troubleshooting
• Broadband service pre- and post-installation verification
• Fault location on voice, data, and hybrid networks
• Load coil and bridge tap identification
• Noise and spectral compliance testing for VDSL deployments
– Compatibility & Integration
RS-232 port supports PC and printer connectivity for test data management and field documentation.
