- Wheelock chime telephone alert
- Nominal Voltage: 90VRMS, 20Hz
- Input Voltage: 50-130VRMs, 20-30Hz
- Ringer Equivalence: 0.4A
- Voice Impedance: 100K OHMS @ 400Hz, 3VRMS
- DC Impedance: Virtually Infinite (Blocking Capacitor)
- Dial Spike Suppression :Meets EIA RS-470 Specs
- Duty Cycle: 33% Max. with 10 Second Max. On-Time
- Chime Delay Time: 1 Second
- Minimum Ring Cycle On-Time: .8 Seconds
- Input Jack: USOC RJ11C (Pin 3 - Ring; Pin 4 - Tip)
- Minimum Chime Frequency: 750Hz
- Maximum Chime Frequency: 1200Hz
- Max volume: 80 dBA

WHCHAT1W