• CATV 1310nm Am Direct Modulated Optical Transmitter.
  • CATV 1310nm Am Direct Modulated Optical Transmitter.
  • CATV 1310nm Am Direct Modulated Optical Transmitter.
  • CATV 1310nm Am Direct Modulated Optical Transmitter.
  • CATV 1310nm Am Direct Modulated Optical Transmitter.
  • CATV 1310nm Am Direct Modulated Optical Transmitter.

CATV 1310nm Am Direct Modulated Optical Transmitter.

Type: Fiber Transceiver
Wiring Devices: ODF
Certification: CE, RoHS
Condition: New
Output Power: 4~30MW
Optical Wave Range: 1310± 20nm
Customization:
Diamond Member Since 2022

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Basic Info.

Model NO.
WT1310
C/N
≥ 51dB
C/CTB
≥ 65dB
C/Cso
≥ 60dB
Optical Reflecting Loss
> 45dB
Input Reflecting Loss
≥ 16dB
Frequency
47~860MHz
Transport Package
Neutral or According to Customer′s Request
Specification
1RU
Trademark
Prevail/Fobetmoc
Origin
China
HS Code
8517622990
Production Capacity
500PCS/Month

Product Description

1. Product Summary 
Optical transmitter is the most important equipment to construct the CATV HFC network. It mainly used for the long distance optical fiber transmission of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. This product does use the high-performance DFB laser as the optical source. The RF drive part adopts RF power digital automatic processing technology and advanced RF pre-distortion circuit, and built-in microcomputer automatic monitoring system, to ensure the excellent performance indicators.

2. Performance characteristics
  • Adopt high-performance coaxial/butterfly DFB laser, narrow spectral lines, good linearity and high output power.
  • The RF drive part adopts the RF power digital automatic processing technology. Automatic processing the drive level power according to the RF input signal level and the number of channels (15-84 channels), make the CSO, CTB and C/N index always at the optimal value to ensure the overall performance.
  • Advanced multi-frequency RF pre-distortion technology, combined with the GaAs device, effectively improve the CATV system most important CTB and CSO index, C/N index also gets the maximum upgrade. 
  • Adopt advanced 32 bit processor; coordinate with perfect automatic monitoring system circuit. It can timely and accurately monitor working status of the laser to ensure a stable optical output power and effectively extend the working life of the laser. 
  • Built-in blue screen 160×32 dot matrix LCD monitor on the front panel, accurately showing all working status parameters.
  • 191U standard rack mount, equipped standard IEEE802.3 10Base-T Ethernet interface and RS232 interface, can expediently realize network management monitoring.
  • Fully support <GB/T 20030-2005 HFC Network device management system specification>.
3. Technology Parameters
3.1 Link test conditions
Special instructions: The performance parameters of this manual according to the measuring method of GY/T 143-2000 <Specifications and methods of measurement on AM optical transmitter and receiver used in CATV systems>, and tested under the specified test conditions.
Test condition: With standard optical fiber and standard optical receiver composed the test link. Set 84 PAL-D analog TV channel signal at 750MHz frequency range under the specified link loss. When the optical input power of optical receiver is -1dBm, measure the C/CTB, C/CSO and C/N.


3.2 Technique Parameters Table
Item Unit Technique parameters
Optical output power mW 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Optical link loss dB 7 9 10 11 11.8 12.5 13 13.6 14 14.4 14.8 15.1 15.5 15.8
Optical wavelength nm 1310±20
Laser type   DFB laser
Optical modulation mode   Direct optical intensity modulation
Optical connector type   FC/APC or SC/APC
Frequency range MHz 47-750/862/1003
RF input level dBuV 72-88
Flatness in band dB ±0.75
RF input impedance Ω 75
Input return loss dB ≥ 16(47-550MHz); ≥ 14(550-750/862/1003MHz)
C/CSO dB ≥ 60
C/CTB dB ≥ 65
C/N dB ≥ 51
AGC control range dB ±5
MGC control range dB 0-10
Power supply voltage V AC 110V-250V(50Hz)
Consumption W 30
Operating temperature ºC 0 -- 45
Storage temperature ºC -20 -- +65
Relative humidity % Max 95% no condensation
Dimension mm 483(L)×380(W)×44(H)
3.3 Optical link carrier to noise ratio degradation table
Optical power Optical link loss (dB)
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
4mW 53.8 52.8 51.8 51 50.1 49.2 48.2                
6mW       53.0 52.0 51.0 50.1 49.1 48.1            
8mW         52.8 51.9 51.0 50.1 49.2 48.2          
10mW           52.9 51.9 51.0 50.1 49.1 48.2        
12mW             52.7 51.8 50.8 49.9 49.0 48.0      
14mW               52.4 51.5 50.5 49.5 48.6 47.8    
16mW                 52.0 51.0 50.1 49.1 48.1    
18mW                 52.5 51.6 50.6 49.7 48.7 47.9  
20mW                   51.9 51.0 50.0 49.0 48.0  
22mW                   52.2 51.4 50.4 49.4 48.6 47.8
24mW                     51.5 50.3 49.2 48.5 47.7
26mW                     51.5 50.2 49.2 48.5 47.6

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CATV 1310nm Am Direct Modulated Optical Transmitter.

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