Anritsu BERTWave MP2100B, Руководство по эксплуатации, Страница: 39 / 382

1.4 Intended Use
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Outline
1.4 Intended Use
The BERTWave can be used for the following applications:
 Evaluating optical transceivers used in optical fiber communications
 Evaluating parts for digital communications
Evaluating optical transceivers used in optical fiber communications
Computer-based and public communications systems send and receive
digital signals. These signals are converted to electrical or optical signals
optimized for passage through the transmission path, which may be
either coaxial cable or optical fiber. The device for converting the signal
before sending through the transmission path is called the transmitter
and the device for converting the signal after passage through the
transmission path is called the receiver.
A device incorporating an optical signal transmitter and receiver in the
same module is called an optical transceiver.
Transmission medium
(optical fiber, etc)
Transmitter
Receiver
I
nternal
transmission
equipment
(Electrical
signal)
Optical
transceiver
Figure 1.4-1 Uses of Receiver and Transmitter
Transmitters and receivers must have the functions and performance
specified by IEEE and ITU-T.
Table 1.4-1 and Table 1.4-2 list the specifications for computer-based
Ethernet communications as an example of the required performance and
functions. In these tables, the optical fiber transmission medium has a
speed of 10 Gbit/s specified as 10GBASE-L.