Gill Instruments Ltd
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WindObserver II Pipe Mount
Page 13
Issue 04
Doc. No. 1390-PS-0009
August 2009
Connecting to a PCI Unit with RS422 input
WindObserver II (Pipe Mount)
6 Pair Cable
PCI 15 Way D Type
Connector
Signal
Names
Pair
No.
Colour
Pin Nos.
Signal Names
TXB(+)
1
Green
2
RXB(+)
TXA(–)
1
Black
9
RXA(–)
RXB(+)
2
3
TXB(+)
RXA(-)
2
Black
10
TXA(–)
Digital 0v
4
Blue
4
Signal Ground
Supply V+
3
Red
5
POWER V +
Supply V-
3
Black
11
POWER V-
Heater –
5
5
Yellow & Brown
Black & Black
+
–
Heater power
supply
See Section 6.6
Indoor Power and Communications Interface (Part 1189-PK-021)
Environmental
The desktop PCI is intended for use in a protected environment and provides interfacing to
a single anemometer. The PCI is not intended for outdoor use.
PCI Electrical Power Requirements
1)
100Vac – 120Vac, 10VA for the 115V switch position
2)
200 Vac – 250Vac, 10VA for the 230V switch position
3)
9-30Vdc, 120mA max (anemometer)
8-15Vdc, 50mA max (interface)
3 Fuses protect the unit:
1.
Externally accessible
315mA(T) for 115/230v operation
2.
Internally accessible
500mA (T) AUX
500mA (T) ANEM
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