Product Specification:
Item | Patameter |
Power | AC110V or AC220V 50-60Hz |
Feed Currency | DC48V; 25mA |
Ringing Currency | AC65v/50Hz |
DISA | 30 second, 3-duration, 15s-7.5s-7.5s |
Communication path | 15 |
Extension number length | 2 to 4 digits |
Caller ID | * Receive: Auto adapt DTMF, FSK (Bell.202) |
* Send: FSK (Bell.202) | |
Dial mode | DTMF |
Degree of Unbalance about earth |
* 300Hz~600Hz≤40dB |
* 600Hz~3400Hz≤46dB | |
Transmission Attributes | * Extension to extension ≤1.5dB |
* Extension to extension ≤2.0dB |