Origin

China

Ⅰ. Summary

■         WT-8600、WT-7500Series 1310nm laser transmitter is the important equipment for building CATV HFC network, which is mainly used in long- distance optical fiber transmission for TV image signal, TV digital signal, telephone TV signals and data signals(compressed date)。

■         WT-8600、WT-7500Series 1310nm laser transmitter adopt international famous brand low-noise DFB laser, high performance LiNbO₃ external modulator, and RF drive part is with RF power digital auto-operation technology and advance RF pre-distortion circuit developed by our company. On the other hand, it builds in perfect micro-computer auto-monitor system to make sure good performance index of the whole equipment.

■         Since the first 1310nm laser transmitter come into market successfully, the production technology innovates constantly, circuit structure changes a lot and quality index improves much. On the other hand, RF part of WT-8600,WT-7500 Series 1310nm laser transmitter adopt GaAs amplify circuit ,all performance indexes take the lead in domestic market and the quality can be comparable to the imported products.

Ⅱ. Performance Characteristics

n         Adopt high performance DFB laser with international famous band, narrow Spectrum, good linear and high output power.

n         Adopts RF power digital automatic process technology designed by ourselves at RF driving part. It can auto-adjust RF driving power according to the input RF signal level and channel number(15~84) to make the C/CSO,C/CTB and C/N in the best condition, which ensure performance of the whole equipment and make the output level of optical receiver keep the same.

n         Advanced multi-frequency point pre-distortion technology with GaAs devices optimize C/CTB and C/CSO value, which are the most important index in CATV system, meanwhile maximize the C/N.

n         The built-in micro-computer automatic monitor circuit can real-timely and precisely monitor various working condition of optical output power and laser to ensure the stable optical output power and prolong the working life of laser effectively.

n         19″1U standard rack, the front panel embed blue VFD monitor, which can display accurately all working parameters and fault information of the equipment.

n         There is Ethernet interface and RS-322 network management interface which match to IEEE802.3 10Base-T Standard, fully supporting << GB/T 20030－2005 HFC Network Equipment Management System Rule>>.