Built-in Asynchronous FSK Narrowband Modem

Suitable for point-to-point or point-to-multipoint schemes.

The MFPU module can be integrated into an OPU-1 chassis (19”/9 s.u.).
Data format: Binary, serial. Asynchronous and anisochronous.
Modulation: Frequency-shift keying (FSK).
Transmission mode: V.23 Full-duplex over 4-wire and Half-duplex over 4 or 2-wire.
Transmission speed of 50, 100, 200, 600, 1200 or 2400 Bd (using a 4 kHz band).
Central frequency programmable from a wide range of values.
The data interface complies with specifications V.24 and V.28 of the ITU-T and RS-232C of EIA.
When operating up to 1200 Bd in superimposed band, it can share the channel of the PLC terminal with speech frequencies up to 2000Hz and with a teleprotection guard frequency of 3800 Hz.
Equipped with test devices for a rapid operational check.
Optical indications.
Module management associated with the PLC Management System.
Cabinet-mounted terminal blocks associated with the modules.

Literature