WISYCOM MFL : RFOF KIT

Price upon request
Short description:

MFL provides wideband optical link for up to 4 RF channels combined in a SINGLE fiber thanks to CWDM technology

01-FIB-RFO-001

SETUP OPTION 1: MFL-TT / MFL-RR (2 channels = 1 x diversity receiving)

SETUP OPTION 2 : MFL-TTRR / MFL-RRTT (4 channels = 1 x diversity transmitting & 1 x diversity receiving)

SETUP OPTION 3: MFL-TTTT / MFL-RRRR (4 channels = 2 x diversity receiving)

NOTE: System is customisable and designed as per the requirements of each client / projecy

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SETUP OPTION 1 Configuration

  • MFL side A (TT)
    • 1 x MFL-BASE Rackmount unit
    • 2 x MFL-TX modules
    • 1 x MFL-BF1 RF filter
    • 1 x MFL-OMS optical demux
  • MFL side B (RR)
    • 1 x MFL-BASE Rackmount unit
    • 2 x MFL-RX modules
    • 1 x MFL-OMS optical demux

SETUP OPTION 2 Configuration

  • MFL side A (TTRR)
    • 1 x MFL-BASE Rackmount unit
    • 2 x MFL-TX modules
    • 2 x MFL-RX modules
    • 1 x MFL-BF1 RF filter
    • 1 x MFL-OMS optical demux
  • MFL side B (RRTT)
    • 1 x MFL-BASE Rackmount unit
    • 2 x MFL-RX modules
    • 2 x MFL-TX modules
    • 1 x MFL-OMS optical demux

SETUP OPTION 3 Configuration

  • MFL side A (TTTT)
    • 1 x MFL-BASE Rackmount unit
    • 4 x MFL-TX modules
    • 1 x MFL-BF1 RF filter
    • 1 x MFL-OMS optical demux
  • MFL side B (RRRR)
    • 1 x MFL-BASE Rackmount unit
    • 4 x MFL-RX modules
    • 1 x MFL-OMS optical demux

 

NOTE:

  • The MFL units are setup and calibrated in the Wisycom factory.
  • Fibre cable:
    • Connector : SC/APC
    • Type : MULTI-MODE

 

* prices exclude antennaes and fibre cable

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See OPTION SETUP SAMPLES 1, 2 and 3 example layouts in the images above

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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

Example: MFL-TTTT is 4 laser transmitter unit that works with a MFL-RRRR with 4 channel receiver. Other configurations are also possible like MFL-RR / MFL-TT or a mixed like a MFL-RRTT with both receiver and transmitter channels.

System Overview

The system is composed by a MFL-BASE (1U rack frame) and some optional/modular boards to build the desired configuration.

MFL-BASE can have up to 4 optical modules that can be either TX or RX (factory installed) to adapt the unit to several configurations.

To simplify the usage we give a name of the final configuration that easy identify the CWDM channels and a color code for the RF connectors (N type).

We use as default 4 laser wavelength although the CWDM standard can allow to use much more with a 20nm wavelength separation:

  • Channel 51 short name for wavelength 1510 nm
  • Channel 53 short name for wavelength 1530 nm
  • Channel 55 short name for wavelength 1550 nm
  • Channel 57 short name for wavelength 1570 nm

 

Channel

Wavelength

Color Identifier

51

Wavelength 1510 nm laser, single mode

Blue

53

Wavelength 1530 nm laser, single mode

Green

55

Wavelength 1550 nm laser, single mode

Yellow

57

Wavelength 1570 nm laser, single mode

Orange


For example:

  • MFL-TTRR has 2 Tx on ch.51/53and 2 Rx on ch 55/57
  • MFL-RRTT has 2 Rx on ch.51/53 & and 2 Tx on ch 55/57
  • MFL-TT-- has 2 Tx on ch.51/53 and no module on ch 55/57
  • MFL-RR-- has 2 Rx on ch.51/53 and no module on ch 55/57

 

Following the main code and option that can build up a MFL system:

 

#

Code

Description

1

MFL-BASE

WIDEBAND RF OVER FIBER MAINBOARD

19' 1U Rack units , aluminium frame

Oled display - Ethernet - failsafe switch - realtime clock

AC Powered 230V

2

MFL-RX

Optical RX module for MFL (CWDM)

3

MFL-TX

Laser TX module for MFL (CWDM)

 

Optional

4

MFL-DC

Insulated DC power with battery monitor (10÷28Vdc)

5

MFL-OMX

Module Mux/Demux for 1:4 CWDM

6

MFL-BF1

RF filter 25MHz tuning range over 404÷788 MHz

 

Key Features

LOW NOISE DESIGN to allow great coverage when used to remote receiving antennas

HIGH INTERFERENCE IMMUNITY thanks to high IIP3 design and a control/compensation of gain

EASY TO USE thanks to integrated RF/optical power meter and optical power compensation

REAL-TIME CLOCK with a backed-up static RAM to monitor and record internal RF levels and service data (i.e. laser life time)

TX UNIT (remote RF reception, i.e. diversity antennas):

  • MFL units can incorporate a digitally tuned filter (25 MHz bandwidth, center frequency tunable over 404-788 MHz).
  • 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
  • It automatically monitors RF levels and intervenes to avoid fiber saturation

RX UNIT (RF transmission, i.e. single-frequency master/slave areas)

  • It can route an IFB high power signal to transmit locally and send low power IFB carrier over fiber to slave units
  • 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)

REMOTE MONITOR/CONTROL thanks to a data link on Ethernet 10/100 Base Tx

RF INPUT / OUTPUT

  • 4 N connector female 50Ω with switchable 12V boosting power (only on transmitter modules)
  • 2 BNC-F 50Ω each optical transmitter module, failsafe option or external RF filter
  • 1 BNC-F 50Ω each optical receiver module, failsafe option OPTICAL INPUT/OUTPUT: 5 connectors SC-APC type DATA LINK: RJ45: 10/100 Base TX

POWER SUPPLY

  • AC INPUT: 90V-264V~, 47-63 Hz, 2A fused, max 60 Watts
  • DC INPUT: 10-28Vdc (max 5A), [XLR-4M] VDC-pin 4 / GND-pin 1 / NC-pin 2 / NC-pin 3

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 MFLOMX)

“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 MFLTX 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 MFLRX 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 MFLDC) : 10‐28Vdc 3A frame floating

Dimensions and weight

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

(*) Measured with “Ant” mode and 0 dB gain (standard “factory preset”) at 25 °C

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