YSI 6200 - Manual (Page 59)

YSI 6200 DAS USER Manual
YSI/Massachusetts 508.748.0366, Fax 508.748.2543 Page 6-4
Although you would typically use one mode of communication between a single field station and
a single base station, you are not limited to a single mode of communication. If you plan to use a
single base station to interrogate more than one field station, you can also set up a variety of
communication modes. See the illustration below (Figure 6.5).
For example, if you have a nearby field station, you may be able to use a direct serial interface
(cable connection). If a second field station is remote but near telephone utilities, you may
choose telephone modem. For a third station that is remote and not near utilities, you may
choose either cellular modem or 2-way radio. Distance and terrain may limit two-way radio.
While cellular modem is more tolerant of distance and terrain, power drain at the field station
and general operating costs may be restrictive.
Field Station #4
Field Station #2
Computer with
EcoWatch DCP
Base Station
Radio
Base Station
External MODEM
(or internal to PC)
Telephone lines
Field Station #3
Field Station #1
Near to Base Station
Direct Line
Cell
antenna
Figure 6.5 Multiple Field Station Setup
Variety of Comm Links Between 6200 DCPs and Base Station Computer