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Optical transmission platform
Optical transmitter
Optical fiber amplifier
Cable transmission equipment
Optical transmission equipment
Optical receiver
FTTx satellite TV(&CATV)
Passive optical device
Hangzhou Tongxing Electron Co.,Ltd
Add:#50 No.1418 Moganshan Rd. Hangzhou City,Zhejiang Province,China
Tel:+86-571-85236506
Fax:+86-571-85330485
Mail:hztx2006@263.net
Skype:Lynda918
ANNT: Lynda Rao
1550nmExternal Modulation Optical Transmitter
1550nm Broadband External Modulation Optical Transmitter

1550nm Broadband External Modulation Optical Transmitter

Features

1. The frequency of 1550nm broadband external modulation optical transmitter is 47~2700MHz, 47~862M for cable TV, 950~2700MHz for micro-wave signal such as radio frequency, satellite and MMDS.

2. Mixed input and separate input for the user’s choice. Mix model means the cable TV and radio Frequency share one input, separate means the two input separately.

3. Both the external modulator and laser are imported from the United States or Japan.

4. Perfect pre-distortion circuit ensures the best CTB and CSO when the CNR is in high standard.

5.Perfect SBS suppress circuit and adjustable SBS in 13,16, 18suitable for different types of CATV net.

6. AGC and MGC control.

7. Internal double power which can be switched automatically.

8. Automatically shell temperature control.

9. Internal microprocessor software has the function of laser monitoring, parameter display,fault warning, net management and so on. Once the working parameter of the laser goes out of the fixed value of the software, the machine will warn.

10. The transmitter provides RS232 standard interface for local management.

11. The transmitter provides RJ45 standard interface for remote management.

 

Main technical indicators

Items

Parameters

Remarks

Optical Parameters

Wavelengthnm

1550±10

 

Laser Type

DFB

 

Modulation

External modulation

 

Output  dBm

2×7Normal value

1×31×10

        2×32×13

Modulation Depth

3%±0.25

 

Optical Return Loss                dB

60

 

Fiber Connector

FCAPC

Or SCAPC

RF Parameters

 

 Bandwidth MHz

47-1000

 

Input leveldBµV

80±5

AGC

 Flatness    dB

±0.75

47~1000MHz

Return LossdB

16

47~1000MHz

 Input Impedance     Ω

75

 

Link Parameters

 

Channels

PAL-D/98ch

 

CNR                 dB

52

 

CTB                  dB

65

 

CSO                  dB

65

 

The SBS suppression                dB

13, 16, 19 continuously adjustable

Step 0.1 dB

General Parameter

 

Network interface

RJ45RS232

 

 Power SupplyV

90265VAC

Or -48VDC

Power ConsumptionW

50

 

Working Temp

-555

Auto shell temp control  

 

Relative Humidity

20%85%

 

 Size          

19″×11″×1.75″

483Wx381Lx44H

 Weight         Kg

5.0

 

 

 

 


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