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The FIO4-2 board is a 2 line trunk line card which can be used in all SeaCom exchanges.
It has 2 audio I/O channels and 2 relays used for activating external PA amplifier equipment.
- 2 trunk linees
- 2 audio in/out channels
- 2 relays associated with audio channels
- Line feed detection
- Ringing detection
- DTMF receiver
- DTMF transmitter
- Call progress tone detector
- Trunk and audio I/O galvanic isolated 1,5kV
- Zone relay drive 24V 50mA
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