11938027 Rev A
- 10 -
© 2016 UTC RETAIL
Serial Operating Parameters Selection
The 3190 RCD ships factory set for 9600 baud, 8 data bits, and no parity. If desired, the baud and parity can be
changed with a few simple steps.
Remove the lens cover by depressing the 2 tabs on the bottom of the display. While the tabs are depressed, carefully
rotate the lens cover off of the display, starting at the bottom of the display. Once the lens is removed, the headers
used to select the baud rate and parity will be visible. They are located on the printed circuit board to the right of the
vacuum fluorescent display. The shorting jumpers (supplied with unit) can be added to change both the baud rate
and/or parity.
The diagram below shows positions of the shorting jumpers needed for different baud rates and parities. Up to 4
shorting jumpers may be needed.
BAUD RATE
9600 Baud
.
.
7
2400 Baud .
.
7
4800 Baud
.
.
7
19.2K Baud .
.
7
DEFAULT
.
.
6
.
.
6
.
.
6
.
.
6
.
.
5
.
.
5
.
.
5
.
.
5
.
.
4
.
.
4
.
.
4
.
.
4
.
.
3
.
.
3
.
.
3
.
.
3
.
.
2
.
.
2
.
.
2
.
.
2
.
.
1
.
.
1
.
.
1
.
.
1
PARITY
No Parity
.
.
7
Odd Parity .
.
7
Even Parity .
.
7
DEFAULT
.
.
6
.
.
6
.
.
6
.
.
5
.
.
5
.
.
5
.
.
4
.
.
4
.
.
4
.
.
3
.
.
3
.
.
3
.
.
2
.
.
2
.
.
2
.
.
1
.
.
1
.
.
1
