The TS30 features the latest in test set case design, at an affordable price.- High impedance DataSafeTM operation in monitor mode- DropSafeTM reliability passes 20-foot drop test- RainSafeTM protection in severe weather conditions- Mute switch- Last number redial- Audible ringer for callbacksRecognized as the industry standard for basic test sets, the TS30 Test Set provides superior quality at an affordable price. With its high impedance Monitor for DataSafe™ operation, technicians can clip onto a line in Monitor mode without disrupting existing traffic.Fluke Networks’ unsurpassed RainSafe™ protection standards and DropSafe™ durability assure the test set will keep working even in the toughest environments. Solid weatherproofing provides enhanced resistance to severe weather conditions.Electrical Specifications- Return Loss: >14 dB (ref 600 Ω)- Line Current Range: 15 mA to 120 mA- Resistance to Continuous Current (Talk Mode): 275 Ω typical at 20 mA- Monitor Mode Impedance: >120,000 Ω 300 Hz to 3400 HzPulse Dial Output- Pulsing Rate: 10 pps pps- Open/Close Ratio: 60/40- Inter-digit Interval: 800 ms %, -10%- Resistance During Pulse Open: > 200,000 Ω- Protection Against Alternating Current Overvoltage: The TS30 survives up to 250 Vrms across its test leads.- Peak Acoustic Output of the Receiver: <120 dBspl- DTMF Output Tone Frequencies Tone Frequency Error: per ITU-T Q.23 ±1.5% MaximumTone LevelHigh Group Low Group: -4 dBm (into 600 Ω) -6 dBm (into 600 Ω)High vs Low Tone Difference: 2dB +1dbLast Number Redial (Tone/Pulse)Memory Capacity Memory Retention: 23 digits 8-minutes nominalFlash Duration: 600 ms ±100 msRinger Loudness: > 70 dBA at 1 meterRinger Equivalent (REN): 0.14