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Home/Fiber Systems/Fiber Rack Units/MFL

MFL

Wideband Optical Link
  • Description
  • Technical Data
  • Downloads
  • FW Releases
  • Accessories

MFL 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-RR** / MFL-TT** or a mixed like a MFL-RRTT 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 (25 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 power/SWR meter integrated into the MTK952MS)
Download
MAINFRAME
RF to Optical modules (TX module)1 to 4
Optical to RF modules (RX module)1 to 4
Maximum number of modules4
RF to fiber link working modesANT, IFB, 4ifb, 3ifb, 2ifb, 1ifb
Rear optical connectors4 SC/APC, 1 LC/PC duplex, other type on request
Internal optical CWDM MUX/DEMUX2 max (option OMS or OMX)
“ANT” MODE – OPTICAL TX MODULE
Typical applicationRX antenna remoting
Frequency ranges (front panel selectable) 140 to 960 MHz (flat)
470 to 960 MHz
25MHz BW tunable band-pass filter 404-788MHz (BF1)
40MHz BW tunable band-pass filter 410-730MHz (F41/F42/F45)
940-960MHz (F42/F45)
806-810MHz (F45)
Other selectable filters (see section Filter option)
External user band-pass filter
External filter loss compensation0 to 6 dB
TX Gain0dB (user adjustable +6 to -20dB typ.)
Input IP3> 16 dBm typ.
Noise figure< 20dB typ. (*)
SFDR> 116 dB/Hz 2/3 typ.
RF input connectorN female 50 Ω
Antenna booster supply12Vdc 200mA max
External filter connectorsBNC female 50 Ω
“ANT” MODE – OPTICAL RX MODULE
RX Gain0dB (user adjustable ± 14dB typ.)
Failsafe optionyes, standard option
RF output connectorN female 50 Ω
Failsafe connectorBNC female 50 Ω
“IFB” MODE – OPTICAL TX MODULE
Typical application“IFB” signal remoting (isofrequency systems)
Frequency range140 to 960 MHz
RF input level- 6 to 6 dBm [0.25mW to 4mW]
RF input level for 0dBm out (@ 0dB gain)from -3dBm to + 10dBm
RF input connectorN female 50 Ω
“IFB” MODE – OPTICAL RX MODULE
RX output level0 dBm (user adjustable +6 to -20dB typ.)
Failsafe optionyes, standard option
RF output connectorN female 50 Ω
DC power for external amplifier 12V@ 200mA
Failsafe connectorBNC female 50 Ω
OPTICAL TX MODULE
Optical power6dBm [4mW] (other on request)
Wavelengths1511 or 1531 or 1551 or 1571 nm
Laserlow noise, low distortion DFB laser
OPTICAL RX MODULE
Input optical power range-5 dBm to 5 dBm [0.3mW to 3mW]
Wavelengths1490 to 1610 nm
Temperature range-20 to +55 °C
Powering90 to 240 Vac, 60VA max
10-28Vdc 5A frame floating (OPTINAL)
Dimensions19”/1U, 430x44x370mm (Width x Height x Depth)
Weight4,5 kg
  • Documents

    • Brochure

      MFL-en-b04

    • User Manual

      MFL_en-u02-A4

  • Applications

    • Manager

      Wisycom Manager v3.1.0 installer – released 19.11.2020

    • Firmware

      MFL_v1.16.xupf

  • Images

Version:  v1.16

Date:  2020-11-20

MFL

New

  • Updated external amplifiers list
  • Optical power recovery not activated for received optical power below 0.1 mW
  • Gain settings on Manual for any switching from IFB mode to nIFB; the E2 mode saved is set when going back to ANT
  • Max attenuation setting for all the RF attenuators on start up.

Bug fix

  • RF level displayed correctly on Set Gain page for values above 4 digits
  • Gain Modulo displayed properly on OPT.CH page
Firmware
  • Wisycom Manager

  • DC-BAtt

  • FBPW

Categories: Fiber Rack Units, Fiber Systems Tags: fiber, link, optical, reception, remote, transmission, wideband

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Wisycom USA
5228 Eisenhower Avenue
Alexandria, Virginia 22304

Tel.+1 (888) WISYCOM
+1 (888) 947-9266
e-mail : sales@wisycomusa.com

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