The EXFO EXD-350 Advanced ADSL2+ Tester is a handheld instrument for field installation and maintenance of copper-based broadband lines supporting ADSL, ADSL2, and ADSL2+ protocols. Technicians deploy it to verify service connectivity to the DSLAM and measure upstream and downstream performance across xDSL copper loops. The tester delivers essential diagnostics including actual data rates, attenuation, noise margin, and carrier load information (bits/bin) required for reliable service deployment in residential and business environments.
## Technical Specifications
**DSL Performance & Diagnostics**
• Protocols: ADSL, ADSL2, ADSL2+
• Upstream and downstream data rate measurement
• Attenuation and noise margin analysis
• Carrier load information (bits/bin)
• Copper loop quality testing
• Distance-to-fault detection for shorts and opens
• Load coil identification
**Digital Multimeter Functions**
• Voltage measurement
• Resistance measurement
• Capacitance measurement
**Connectivity & Service Verification**
• IP ping test supporting PPPoE, PPPoA, LLC-Bridge, and LLC-Router modes
• Stand-alone and Through mode operation
• WAN and POTS status indication via LED
**User Interface & Power**
• 4-line × 16-character backlit display
• Status LEDs: power, modem sync, WAN, POTS
• Rechargeable NiMH batteries
• Battery life: approximately 90 on/off cycles and tests per full charge
## Key Features
• RJ-11 DSL test port and RS-232 serial port
• RJ-45 Ethernet port for Through mode testing
• Integrated multimeter eliminates need for separate test equipment
• Field-ready carrying case included
## Typical Applications
• ADSL/ADSL2+ service installation verification
• Copper loop performance troubleshooting
• Line quality assessment prior to customer handoff
• In-service maintenance and fault isolation
• DSLAM connectivity validation
## Compatibility & Integration
The EXD-350 is designed exclusively for ADSL, ADSL2, and ADSL2+ services over copper lines. Note: This product reached end-of-service and support on January 19, 2016.
