8
One of Four Grounding Logic
Alternatively, after changing the internal jumper JMP1 to INT, a customer supplied 1-of-4
grounding switch may be wired to the
DXE-FVC-1
input according to
Table 3.
Grounding the
appropriate terminal(s) results in a different output voltage through the ANT type F-connector and
on the green connector OUT terminal. Control using a 1-of-4 grounding control uses terminals POS,
NEG, AC and GND
Note the LED indications. GND signifies a grounding of the respective terminal. N/C is No
Connection or floating. COM is the common terminal on the 4 position switch.
User
switch
position
Ground
applied to
DXE-FVC-1
POS terminal
Ground
applied to
DXE-FVC-1
NEG terminal
Ground
applied to
DXE-FVC-1
AC terminal
DXE-FVC-1
Voltage
Output
LED On
1
N/C
N/C
N/C
0 V
●
Neither
●
2
N/C
GND
N/C
-12 Vdc
●
Green
●
3
GND
N/C
N/C
+12 Vdc
●
Red
●
4
N/C
N/C
GND
12 Vac
●
Both
●
Table 3 1-of-4 Grounding
Logic and Resulting Output
NOTE:
The
DXE-FVC-1
uses 1/2-wave rectification for the DC control voltages. When
measuring the output using an RMS or average reading DVM, the normal DC output of
the
DXE-FVC-1
will indicate a n/– 6 Volts. The AC voltage will measure 12 Vac.
The above diagram is the 1 of 4 grounding logic hook up scheme using
a customer supplied 4 position switch.
