Chapter 2 __________________________________________________________ Product Overview
VAISALA _______________________________________________________________________ 21
Transmitter WT501
Figure 5 Transmitter WT501
The WT501 composes the digital transmitter PCB with connectors
enclosed into an anodized aluminum profile with DIN-rail mounting.
The unit is installed as such in an equipment enclosure designed to
withstand the environmental conditions in question.
The data is provided via the onboard opto-isolated serial interface of
the transmitter unit. For long distance communication in
MAWS201MP, the transmitter is equipped with an isolated Modem
Module DMX501.
Modem Module DMX501
Figure 6 Modem Module DMX501
The DMX501 module is used for providing a long distance fixed-line
connection between MAWS201MP and MIDAS IV PC, which has an
RS-232 serial connection to a similar module installed inside the
QCA101 unit.
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