Fiche Technique FXO

Detects ringing when on-hook
Detects loop current when off-hook
Detects when tip/ring voltage crosses a set voltage when on-hook or off-hook (called DC triggering)
Can accommodate private branch exchange (PBX) with –48 V battery voltage
Loop current range: 13-110mA
Voltage detection threshold is software-selectable

Port Connecteur

PIN Description 1 Not used 2 Tip 3 Ring 4 Not used

Fiche Technique FXS

Ring Generation and Ringing Trip
Loop Closure Detection
Loop Disconnect
Loop Reversal
Loop Voltage and Current Monitoring
On-hook and Off-hook Transmission
Hook-flash Detection
DTMF Signalling
Programmable Audio Gain
On-board Power Generation
Constant Loop Current: 20mA

Port Connecteur

PIN Description 1 Not used 2 Tip 3 Ring 4 Not used