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HFC

OPTICAL AMPLIFIER OPTICAL NODE OPTICAL PLATFORM OPTICAL RECEIVER OPTICAL TRANSMITTER OPTICAL SWITCH RF AMPLIFIER RF SWITCH

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℃