$ 199
- Detects ringing when on-hook
- Detects loop current when off-hook
- Detects when tip/ring voltage crossesaset voltage when on-hook or off-hook(calledDCtriggering)
- Can accommodate private branch exchange (PBX) with โ48 V battery voltage
- Loop current range: 13-110mA-Voltage detection threshold is software-selectable
VOIP PCI-EXPRESS CARD 4FXO 4E04
- Detects ringing when on-hook
- Detects loop current when off-hook
- Detects when tip/ring voltage crossesaset voltage when on-hook or off-hook(calledDCtriggering)
- Can accommodate private branch exchange (PBX) with โ48 V battery voltage
- Loop current range: 13-110mA-Voltage detection threshold is software-selectable
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