WindSonic Doc No 1405 PS 0019 Issue 28 November 2019
24
7.10 Using the Analogue Output (Option 3)
Notes
1.
If the Current output is used, the total output load
MUST
be below 300 ohms, including
the cable resistance.
2.
The current output loads must be returned to Signal Ground.
3.
Reconfiguration of the analogue output requires a digital connection (
See sections 9 &
10
).
4.
In addition, the digital output can be connected if required using RS232, 422 or 485
point to point, as shown in the previous sections.
WindSonic
9 Way circular connector
Data logger or
Chart recorder
Signal names
Pin
nos.
Cable – 3 twisted pairs
Signal names
Analogue Channel 1
(Speed)
Analogue Channel 2
(Direction)
8
9
Analogue Channel 1
Analogue Channel 2
Signal Ground
(Analogue Return)
1
Signal Ground
Do NOT connect
at this end
N/A
Screen and drain wires
Chassis ground
V
V supply -
2
3
+
–
DC Power supply
(See Para 7.3.2)