Vaisala MAWS201 User's Guide Page 43

  • Download
  • Add to my manuals
  • Print
  • Page
    / 196
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 42
Chapter 2 ___________________________________________________________Product Overview
VAISALA ________________________________________________________________________ 41
The power consumption is less than 10 mA when communicating, less
than 1 mA at standby.
DSI485A
DSI485A is an isolated communication module for providing the 2- or
4-wired RS-485-communication link between MAWS and another
piece of equipment with a similar interface. The DSI485A module is
used e.g. for connecting displays and terminals to MAWS when the
distance is longer than 15 meters. The maximum distance for
DSI485A is approx. 1500 meters at full speed. The power
consumption is from 10 to 25 mA when communicating, 1 mA at
standby.
The DSI485A module must be configured before using it so that it
works as desired. The Lizard Setup Software is used for this purpose.
DSI486
DSI486 is a dual-isolated communication module, which can be used
in RS-232, RS-485, or SDI-12 mode. The communication mode is
selected by the correct wiring of the I/O pins and with the correct
jumper settings on the board. The DSI486 module is used, for
example, for connecting displays and terminals to MAWS when the
distance is longer than 15 meters. The maximum distance for DSI486
is approximately 1500 meters at full speed.
The RS-485/422 channels A and B are galvanically isolated from the
host board's electronics. The +5 VDC power supplies of channels A
and B are also isolated from each other with capacitors. Thus, it is
possible to wire these two channels to separate locations.
The RS-232 mode utilizes channel B. When channel B is used in the
RS-232 mode, it is possible to use channel A as a galvanically isolated
two-wire RS-485 channel. The RS-232 channel is galvanically
connected to the host board's GND potential.
The SDI-12 channel has its own connecting point on the board. It does
not use channel A or B for the communication. SDI-12 is galvanically
connected to the host board's GND potential.
The DSI486 module must be configured before using it so that it
works as desired. The Lizard Setup Software is used for this purpose.
Page view 42
1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 195 196

Comments to this Manuals

No comments