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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

40～862/1000

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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