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E-14
Appendix E, ALPHABETICAL LISTING OF COMMANDS
RS [n
1
[n
2
]] Set/read RS232 interface parameters
The values of n
1
set the baud rate of the RS232 interface according to the following
table:
n
1
Baud rate (bits per second)
075
1 110
2 134.5
3 150
4 300
5 600
6 1200
7 1800
8 2000
9 2400
10 4800
11 9600
12 19200
The lowest five bits in n
2
control the other RS232 parameters according to the
following table:
bit number bit negated bit asserted
0 data + parity = 8 bits data + parity = 9 bits
1 no parity bit 1 parity bit
2 even parity odd parity
3 echo disabled echo enabled
4 prompt disabled prompt enabled
RT[.] Ratio output
In integer mode the RT command reports a number equivalent to 1000 × X / ADC1
where X is the value that would be returned by the X command and ADC1 is the
value that would be returned by the ADC1 command.
In floating point mode the RT. command reports a number equivalent to X / ADC 1.
SAMPLE [n] Main analog to digital converter sample rate control
The sampling rate of the main analog to digital converter, which is nominally
166 kHz, may be adjusted from this value to avoid problems caused by the aliasing
of interfering signals into the output passband.
n may be set to 0, 1, 2 or 3, corresponding to four different sampling rates (not
specified) near 166 kHz.