Ctav 1GHz Intelligent Direct Modulatedoptical Transmitter

1. Overview1.1 About This ManualThis instruction manual is a complete guide to install and operate the (1RU) WT-1550-DM optical transmitter. Please read the entire manual before beginning installation.This manual applies to WT-1550-DM optical transmitter.• Chapter 1 gives general information about the WT-1550-DM optical transmitter.• Chapter 2 describes the complete technical specifications of WT-1550-DM.• Chapter 3 describes the front/rear panel interfaces and menu system.• Chapter 4 tells you how to install WT-1550-DM optical transmitter.• Chapter 5 tells you the communication setting of WT-1550-DM.• Chapter 6 describes maintenance and what to do in the event of problems.1.2 Product DescriptionWT-1550-DM intelligent directly modulated optical transmitter is mainly used in 1550nm optical fiber transmission system. Adopt advanced electronic dispersion compensation technology, accurately compensate according to the actual transmission distance by 1km stepping. The maximum compensated distance up to 50km.WT-1550-DM intelligent directly modulated optical transmitter is the most important equipment to construct the CATV network. It mainly used for the value-added services of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. By built-in WDM, multiplex the inter-cut optical signal and the main optical signal then output. After setting required optical difference, the perfect adjustable optical attenuation function can automatic control the inserted optical signal according to the main optical signal, realize inter-cut system full automatic adjustment. Provide high quality low cost solution for all-optical relay 1550 optical fiber CATV system, and local value-added services inter-cut.Characteristics:Patent pre-distortion circuit.The optical fiber distance is adjustable according to the actual use condition by 1km stepping.WT-1550-DMII: Built-in WDM, multiplex the inserted optical signal and the main optical signal then output.WT-1550-DM III: Built-in WDM and adjustable attenuator.Model Selection:WT-1550-DM-I: standard 1550nm directly modulated optical transmitter, the default optical output power is 10mW, and the optical output wavelength can choose ITU standard wavelength.WT-1550-DM-II: on the base of WT-1550-DM-I, add inter-cut function and built-in WDM. The WDM specification please specify when ordering.WT-1550-DM-III: on the base of WT-1550-DM-II, add VOA Variable Optical Attenuator, can adjust the signal optical power intensity by the menu options on the front panel.1.3 Product Applications• 1550nm Optical fiber transmission system• Construct the CATV network• Local value-added services inter-cut2. Technique ParametersItemUnitTechnique ParametersOutput optical powermW10*Optical wavelengthnm 1550±10 (have to be ITU wavelength when with inter-cut function)Dispersion compensation distanceKm≤50Laser type DFB laserOptical modulation mode Direct optical intensity modulationOptical connector type FC/APC or SC/APCFrequency rangeMHz47-862/1003RF input leveldBμV75-85Flatness in banddB±0.75RF input impedanceΩ75Input return lossdB≥ 16AGC control rangedB±5MGC control rangedB0-20Supply voltageVAC 110V-250V (50Hz)ConsumptionW30Operating temperatureºC0 -- 45Storage temperatureºC-20 -- +65Relative humidity%Max 95% no condensationDimensionmm483(L)×380(W)×44(H)Special instructions: The performance parameters of this manual according to the measuring method of GY/T 143-2000 , and tested under the specified test conditions.* The output optical power doesn't involve optical ATT and WDM insertion loss. Optical ATT+WDM insertion loss≤ 1.5dB,optical ATT or WDM insertion loss ≤ 1dB.Test IndicatorsTest ModelC42D59D84ChannelCENELEC42PAL D59PAL D84C/N504947.5CSO606058CTB65656525km optical fiber, -1dBm receiving optical power, 80dBμV inputProgramAbout UsContact Us  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1