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WTD光模块回收

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WTD-RTXM192-404
发布时间:2013-12-18 17:28:08 点击量:

WTD-RTXM192-404产品简介

Quick Details

Place of Origin: Hubei, China (Mainland) Brand Name: WTD Model
Type:: GPON OLT Data Rate:: 1.25G Wavelength:: 1490nm Datarange:: 20km


 
Features
Integrated Single fiber bi-directional optical subassembly
1310nm Burst-mode APD/TIA receiver and 1490nm Continuous DFB laser Transmitter (with WDM)
SFP metallic package
0 to 70oC operating ambient temperature
Single SC receptacle optical interface compliant
Hot-pluggable
+3.3V single power supply
Low power consumption
Resetless burst-mode receiver
Wide dynamic range over 20dB
Settling time less than 400ns
Digitalized burst mode optical power monitoring
LVPECL compatible AC coupled  data input interface
LVPECL compatible DC coupled  data output interface
LVTTL transmitter laser shutdown
LVTTL receiver  burst-power-detect indication
Class 1 Laser eye safety standard
Excellent EMI and EMC characteristics
ESD protection function
Applications
 Optical transceiver for PX20+ of Gigabit Ethernet Passive Optical Networks(EPON) OLT side
Standards
IEEE802.3ah 1000BASE-PX20+
Description
 
The EPON OLT Transceiver module is designed for PX20+ of Gigabit Ethernet Passive Optical Network(EPON) 20km transmission. The module incorporates 1490nm continuous-mode transmitter and 1310nm burst-mode receiver.

The transmitter section uses a 1490nm DFB laser and an integrated laser driver which is designed to be class-1 eye safe under any single fault. The laser driver includes APC and temperature compensation functions, which are used for keeping the launch optical power and extinction ratio constant over temperature and aging.

The receiver section uses an integrated APD and BM-preamplifier mounted together. The burst-mode receiver is resetless and wide dynamic range over 20dB can be obtained under whole operating conditions. The module has the function that indicates receiver burst-power-detect signal (active LOW).

The receiver includes digitalized burst mode optical power monitoring function, which converses any of a received ONU optical power directly in digital, with a Trigger input from system. When rising edge of Trigger detected, the DDM processor starts a burst optical power conversion, the digital result is available via DDM interface after Burst Optical Power Conversion Time. Trigger pulse width should be more than Burst Optical Power Conversion Holding Time.

An integrated WDM coupler can distinguish 1310nm input light from 1490nm output light.
 
The metallic package guarantees excellent EMI and EMC characteristics.

 

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