The TS52 PRO Test Set features backlit LCD and glow-in-the-dark keypad. - Display—backlit LCD and glow-in-the-the dark keypad - DataSafe Pro—superior high-impedance monitoring, lockout and override, making you completely safe in any mode - DropSafe—passes 20-foot drop test - DSL/POTS Filtering Technology—allows technicians to clip on a live DSL line to test POTS service without downing or disrupting data service - RainSafe–designed for use in rain conditions. - 2-way hands-free speakerphone—for true hands-free conversation - Test Functions Data indication—warns when data is present. Voltage indication—troubleshooting feature to identify potential line problems Current (mA) indication—verifies sufficient line current Caller-ID—verifies service is functional DTMF Digit Grabbing—isolate faulty customer premise equipment Fluke Networks’ new TS52 PRO Test Set features the latest in test set technology. Designed with a superior, radiant liquid crystal display (LCD) user interface, it allows you to see what cannot be heard in any outside plant environment. The back lit LCD and phosphorescent (glow-in-the-dark) keypad brings light to even the darkest of work environments, providing perfect line diagnostic clarity. The TS52 PRO Test Set is also equipped with 2-way speakerphone and DataSafe™ Pro data protection technology featuring superior high-impedance monitoring, Data Lockout and Lockout Override, making you completely safe. Electrical Specifications - Current Range (Off-Hook): 10 mA to 100 mA DC Resistance - Off-Hook: 150 Ω nominal - On-Hook: >3 M Ω AC Impedance - Off-Hook: 600 Ω nominal; 300 Hz to 3400 Hz - On-Hook: >120 kΩ 300 Hz to 3400 Hz Rotary Dial Output - Pulsing Rate: 10 pps ±1 pps - Break/Make Ratio: 60/40 - Interdigit Interval: >300 ms - Resistance During Break: >100 kΩ DTMF Output - Tone Frequency Error: ±1.5 % maximum - Tone Level: -3 dBm combined (typical) - High versus Low Tone Difference: 2 dB ± 2 dB Memory Dialing - Memory Capacity: 10 speed dial memories plus one last number redial memory - Digit Capacity: 23 digits per memory - PBX Pause Duration: 4 seconds - Hook Flash Duration: User programmable; default of 600 ms - Automatic Speaker Shut Off Duration: User programmable; default of 2 minutes - Battery: 9 V alkaline battery