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 Uploading ....- Power Input: 12Vdc / 2A
- Loop current: 22mA (default)
- On Hook Line Voltage: -48Vdc (fixed non-adjustable)
- Off Hook Line Voltage (depends on the DC impedance of the terminal off-hook voltage): loop impedance x loop current
(maximum loop impedance: 750 ohms (including telephone)) - Nominal AC Line impedance: 600 Ohms
- Ringing Voltage: adjustable in the WebUI (45~85Vac (peak))
- Ring Frequency: 25Hz(default), 20~50Hz adjustable
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