COMOSS Plastic Optical Fiber Evaluation Board Series

Taipei Taiwan – Feb., 22, 2010 HAPPY NEW YEAR 2010!! 昕钰电子通讯有限公司开发的塑料光纤测试板系列，让使用者自行检测数据链接了塑料纤 线质量之塑料光纤收发器。每片测试板，皆有一个OPTOLOCKR收发器，由发射端发射LVDS/CML或PECL格式的电子讯号，并以SMA接头的方式由数字信号产生器输入，且经由全双工的塑料光纤线连接二片测试板。测试板的接收端，接收到的LVDS/CMS讯号后，透过高频测试仪（BERT）分析并绘出光收发之眼图。每片测试板卡皆具有全双工的模式。除了数字信号的输出/入外，发射端亦有REX信号输入，藉以调整光功率之强弱。在正常的情况下运作，输入可直接连接到测试板上的地端。而接收端也提供了一个信号检测（SD）的输出。若不需要SD检测信号，此输出亦可断开。
EVB(Evaluation Broad)    
Overview
The use of plastic optical fiber (POF)
as a physical layer for Fast Ethernet is
on the rise. COMOSS EVB Series
allows the user to examine a data link
over POF and to test the operation of
the fiber optic transceivers.
Each evaluation board carries the
POF transceiver components in a
through-hole of OPTOLOCK® connecter.
The electrical input and output lines from
the transceiver are brought out to SMA
connectors. The input accepts an
LVDS/CML or PECL data source such
as a Bit Error Rate Tester (BERT),
Pattern Generator, or other signal
source. A full-duplex Step Index POF
cable links the optical signal to the
second board. The receive side of the
transceiver generates
LVDS/CMS-compatible differential
output data signals. The boards are
capable of full-duplex operation. In
addition to the data input and output
signals, the transmitter side also has a
Rex input to control the optical power.
For normal operation, this input may be
tied to ground. The receiver side also
provides a Signal Detect (SD) output. If
not required, this output may be left
open circuitis a Fast Ethernet on
Layer 2 POFs (Plastic
Optical Fiber) or
Transceivers Test Kit.