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Wisycom MFL

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Wisycom MFL

Pair Send and Receive

WIDEBAND OPTICAL LINK
MFT provides wideband optical link for up to 4 RF channels combined in a single fiber thanks to CWDM technology.
It is designed to allow for a flexible and modular configuration thanks to a mainboard that can be fitted with up to 4 plug-in boards that can be any combination of two types:
• TX: Laser optical transmitter (CDWM) plug-in board
• RX: Optical-receiver plug-in board

Other configurations are also possible like MFL-2Rx / MFL-2Tx or a mixed like a MFL-2Tx-2Rx with both receiver and transmitter channels.

FEATURES
REAL-TIME CLOCK with a backed-up static RAM to monitor and record internal RF levels and service data (i.e. laser lifetime)
TX - (remote RF reception, i.e. diversity antennas): the units can incorporate a digitally tuned filter (24 MHz movable band over 400-800 MHz)
TX - it can route RF through an external filter or to additional receiver (redundancy) to easily implement a failsafe configuration that can switch on a redundant receiver or transmitter if any fault is detected
TX - It automatically monitors RF levels and intervenes to avoid fiber saturation
RX - (RF transmission, i.e. single-frequency master/slave areas)
RX - It can route an IFB high power signal to transmit locally and send low power IFB carrier over fiber to slave units
RX - When it is working along with a MTK952MS in slave configuration, the fiber loss is automatically recovered and the units increase the gain so that the transmitter power equals the target level (measured with an SWR meter integrated into the MTK952MS)

MAINFRAME :
RF to Optical modules (TX module) 1 to 4
Optical to RF modules (RX module) 1 to 4
Maximum number of modules 4
RF to fiber link working modes 2 (“ANT” mode or “IFB” mode)
Rear optical connectors 5 SC/APC, other type on request
Internal optical CWDM MUX/DEMUX 2 max (option MFL-DMX)

“ANT” MODE RF TX CHARACTERISTICS :
Typical application RX antenna remoting
Frequency ranges (front panel selectable) ▪ 140 to 840 MHz (flat)
▪ 470 to 840 MHz
▪ 25MHz BW tunable band-pass filter (opt*) (center freq. in 1MHz step, from 404 to 788 MHz)
▪ External user band-pass filter
External filter loss compensation 0 to 6 dB
TX Gain 0dB (user adjustable +6 to -20dB typ.)
Input IP3 > 16 dBm typ.
Noise figure < 20dB typ. (*)
SFDR > 116 dB/Hz (2/3) typ.
RF input connector N female 50 Ω
Antenna booster supply 12Vdc 200mA max
External filter connectors BNC female 50 Ω

“ANT” MODE RF RX CHARACTERISTICS:
RX Gain 0dB (user adjustable ± 14dB typ.)
Failsafe option yes, standard option
RF output connector N female 50 Ω
Failsafe connector BNC female 50 Ω

“IFB” MODE RF TX CHARACTERISTICS:
Typical application “IFB” signal remoting (isofrequency systems)
Frequency range 140 to 840 MHz
RF input level - 6 to 10 dBm
RF input level for 0dBm out (@ 0dB gain) from -3dBm to + 10dBm
RF input connector N female 50 Ω

“IFB” MODE RF RX CHARACTERISTICS:
RX output level 0 dBm (user adjustable +6 to -20dB typ.)
Failsafe option yes, standard option
RF output connector N female 50 Ω
Failsafe connector BNC female 50 Ω

OPTICAL TX MODULE (OPTION MFL-TX MODULE OTB001):
Optical power 3dBm (6dBm optional)
Wavelengths 1511 or 1531 or 1551 or 1571 nm
Laser low noise, low distortion DFB laser

OPTICAL RX MODULE (OPTION MFL-RX MODULE ORB001):
Input optical power range -5 dBm to 5 dBm
Wavelengths 1490 to 1610 nm

TEMPERATURE:
Operating temperature -20 to +55 °C

POWERING :
AC mains 90 to 240 Vac, 60VA max
DC (option MFL-DC) 10-28Vdc 3A frame floating

DIMENSIONS AND WEIGHT:
Dimensions 19”/1U, 430x44x370mm (Width x Height x Depth)
Weight 4,5 kg

• DC INPUT: 10-16Vdc (max 5A), [XLR-4M] VDC-pin 4 / GND-pin 1 / NC-pin 2 / NC-pin 3