User manual

2004 Stevens Water Monitoring Systems Inc. All Rights Reserved.
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4.4.3 RS485 Interface Adapter
In order to connect to 4-wire RS485 equipment, an interface connector is needed since
most RS485 interfaces use a terminal block configuration. The following diagram shows
how this interface connector should be wired to work with your Shark.
R+ —2
T- —3
NC—4
GND—5
NC—6
T+ —7
R- —8
The Shark—RS485
The Shark DB-9 Pin-Out to
RS485 Full-Duplex
NC—1
NC—9
R-
R+
T-
T+
GND
RS485 Terminal Block
Figure 15: RS485 Adapter
4.5 Baud Rate
This section explains how to set baud rate between your RS-232/RS485 equipment and
your Shark. It is important to following these steps for successful communications.
This rule of thumb makes it easier to remember:
“The Shark needs to be configured to the same baud rate as the Equipment it is
connected to.”
The following diagrams illustrate both what works and what does not work when setting
baud rate for your Shark device.