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            TFT1550E Directly Modulated Optical Transmitter Module

            TFT1550E direct modulation 1550nm optical transmitter is small size and compact, it combines with OPTIVO platform to consist excellent performance indoor transmission ...

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            TFT1550E Directly Modulated Optical Transmitter Module

            Overview        TFT1550E direct modulation 1550nm optical transmitter is small size and compact, it combines with OPTIVO platform to consist excellent performance indoor transmission equipment.
                   TFT1550E direct modulation 1550nm optical transmitter adopts high linearity, low noise DFB with optical isolator imported laser as optical source, using the company’s newly developed full-band predistortion circuit, significantly improved the laser’s non-linear index. TFT1550E optical transmitter has built-in microprocessor to monitor all the laser operating status parameters, and transmit to OPTIVO system controller through trunk. System controller’s intelligent function provides TFT1550E module good internal working environment, the LCD display on the platform can monitor its operating status, AGC/MGC could be set through the front button or the center control of platform. In this environment, TFT1550E module can play excellent performance, and has a very high reliability and stability.
                   TFT1550E direct modulation optical transmitter operating range is within 10km,the largest not more than 20km,the main application is cooperating with EDFA, it also supports the sub head-end edge IP QAM and local program insertion. Features         Using famous brand and high reliability DFB laser, excellent link performance
                    Excellent AGC,APC,ATC function, adopt wide range RF input, guarantee the laser stable output power.
                    Pre-distortion circuit for the all frequency, make the link performance more advantage
                    AGC/MGC could be set as per the real network demand
                    High isolation IP QAM RF insert port, the link figure will get better after insert IP QAM
                    Excellent protection circuit( delay time protection for turning on, work situation indication and alarm report, RF overdrive cut-off function, etc)
                    Display the working status by LCD, easy to operate
                    Excellent thermal design and low consumption to ensure long-time reliability
                    Working bandwidth:1000MHz
                    Displaying average power and total power of each channel through master interface
                    High-quality RF drive circuit.MGC adjustment range can up to 20 db, which can adapt to a wide range of RF input signal
                    Supporting hot plug
                    Supporting autocratically and manually setting laser status and supporting manually switching laser status forcefully.
                    Open NM interface meets the national, SCTE HMS network management standard. All the local monitored data can be managed remotely. Technical Specifications

            Item

            Unit

            Specification

            Remark

            Operational Bandwidth

            MHz

            47 – 1000

            Input Level

            dBuV

            80±5

            RF Input Test Point

            dB

            -20 +/-1

            RF Input Impedance

            Ω

            75

            RF Input Return Loss

            dB

            16

            47 – 1000 MHz

            Flatness

            dB

            ± 0.75

            Output power

            dBm

            +6  + 13

            Standard 10mw

            Optical Wavelength

             nm

            1550 +/- 20

            Laser

            DFB

            Optical Connector Types

            SC/APCorFC/APC

            Composite Triple Beat Distortion (CTB)

            dB

            65

            Composite Second Order Distortion (CSO)

            dB

            60

            Carrier-TO-Noise (C/N)

            dB

            ≥51 

            Weight

            1KG

            Operating Temperature

            ° C

            -20  +65

            Storage Temperature Range

            ° C

            -40  +80

            Humidity

            5%—95%(non-condensing)

            Optical

            1

            Wave length

            nm

            1550

            ITU wave length is assignable  

            2

            Out power

            dBm

            +6+14

            Normal power is 10dBm

            3

            Laser type

            DFB

            4

            Reflect loss

            dB

            45.0

            5

            Optical connector type

            FC/APC or SC/APC

            RF

            6

            Frequency range

            MHz

            40862/1000

            7

            RF input range

            dBμV

            75~90@20CHs

            Assignable  

            8

            RF input impedance

            Ω

            75

            9

            RF test point

            dB

            -20±1

            10

            RF input reflect loss

            dB

            16

            11

            flatness

            dB

            ± 0.5

            General

            12

            Operating  Temperature

            -5~+55 

            13

            Storage Temperature

            -30+70

            14

            Relative Humidity

            5%~95%

            Non-condensation

            15

            Dimension

            mm

            25.5×126×392.5

            16

            Power consumption

            W

            13

            25℃


             
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