1-8 824 Reference Manual 11/8/00
Figure 1-2
The System 824 has a series of connectors located at
the bottom of the device consisting of an AC and DC output
connection, control connector, serial interface connector, and
external DC power connector.
The following is a layout of the control connector,which is
used to control external devices and receive external wind
and control information:
Figure 1-3
The control connector is a 9 pin mini DIN
connector.
1 - Ground
2 - Logic output (0 to + 5 volts, active high)
3 - Logic input (0 to + 5 volts, active high)
4 - Wind speed input (.05 to 10 Vdc peak to peak.)
5 - Wind direction A:D input (0 to 5 Vdc)
6 - Wind direction power (+5 Vdc through 250
Ω
)
7 - Calibration control output (0 to +5 volts, active high, 10
k
Ω
)
8 - Heater control output (open collector, +40 Vdc Max,
<0.3 Vdc at max 100mA current sink when active low
9 - External power input/output (+8 to +15 Vdc)
Control Connector
AC/DC Output Connector
External DC Power Connector
Serial Interface Connector
12
3
4
5
6
7
8
9
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