6
BCD and 1 of 8 Output Voltages
The
CC-8A
supplies a 12 Vdc BCD or 1-of-8 control voltage to external devices.
The DX Engineering
RR8
remote 8-port RF switch requires a nominal 12 Vdc relay control
voltage. If you are using another switch, ensure the proper control voltage is selected before you
power-on the Control Console.
The relay control voltage in BCD format is present on the 5 terminal, BCD connector corresponding
to the front panel LED indicators as depicted in
Table 1
. The “1” signifies the output voltage
present between that terminal and either pin G (Ground).
LED ON
G
A
B
C
G
1
GND
0
0
0
GND
2
GND
1
0
0
GND
3
GND
0
1
0
GND
4
GND
1
1
0
GND
5
GND
0
0
1
GND
6
GND
1
0
1
GND
7
GND
0
1
1
GND
8
GND
1
1
1
GND
Table 1 - BCD Output Truth Table
The brightness for the front panel indicator LED’s is fully adjustable by the potentiometer on the
rear panel.
The relay control voltage in 1-of-8 format is present on the 10 terminal, 1-of-8 connector,
corresponding to the front panel LED indicator as depicted in
Table 2
. The “1” signifies the output
voltage present between that terminal and either pin G (Ground).
LED
ON
G
1
2
3
4
5
6
7
8
G
1
GND
1
0
0
0
0
0
0
0
GND
2
GND
0
1
0
0
0
0
0
0
GND
3
GND
0
0
1
0
0
0
0
0
GND
4
GND
0
0
0
1
0
0
0
0
GND
5
GND
0
0
0
0
1
0
0
0
GND
6
GND
0
0
0
0
0
1
0
0
GND
7
GND
0
0
0
0
0
0
1
0
GND
8
GND
0
0
0
0
0
0
0
1
GND
Table 2 - 1-of-8 Output Truth Table
