4RF Aprisa SR+ - Page 159

Managing the Radio | 159
Aprisa SR+ User Manual 1.11.1
Baud rate and Latency Table
The following table is arranged by serial baud rate followed by Aprisa SR+ channel size and modulation. It
lists the optimized MTU and IFG and resulting latency for the SEL 2505 device, one of the faster devices
available so serves as an ideal starting point when introducing new devices. It is recommended that initial
testing is carried out with one step size higher (8) on MTU.
Serial Baud
Rate
Modulation
Channel Size
Minimum MTU
Size
IFG
SEL 2505
One Way
Latency (ms)
9600
64 QAM Low
50
8
0.2
20.0
9600
16 QAM Low
50
16
0.2
-
9600
QPSK
50
16
0.2
-
9600
QPSK Low
50
24
0.2
42.5
9600
64 QAM Low
25
16
0.2
40.0
9600
16 QAM Low
25
24
0.2
-
9600
QPSK
25
24
0.2
-
9600
QPSK Low
25
32
0.2
62.5
9600
64 QAM Low
12.5
24
0.2
60.0
9600
16 QAM Low
12.5
40
0.2
-
9600
QPSK
12.5
40
0.2
-
9600
QPSK Low
12.5
64
0.2
125.0
19200
64 QAM Low
50
16
0.5
25.0
19200
16 QAM Low
50
24
0.5
-
19200
QPSK
50
24
0.5
-
19200
QPSK Low
50
24
0.5
-
19200
64 QAM Low
25
32
0.5
50.0
19200
16 QAM Low
25
48
0.5
-
19200
QPSK
25
56
0.5
-
19200
QPSK Low
25
56
0.5
-
19200
64 QAM Low
12.5
56
0.5
85.0
19200
16 QAM Low
12.5
88
0.5
-
19200
QPSK
12.5
not supported
0.5
-
19200
QPSK Low
12.5
not supported
0.5
-
38400
64 QAM Low
50
24
3
40.0
38400
16 QAM Low
50
24
3
-
38400
QPSK
50
32
3
-
38400
QPSK Low
50
40
3
62.5
38400
64 QAM Low
25
40
3
62.5
38400
16 QAM Low
25
72
3
-
38400
QPSK
25
76
3
-
38400
QPSK Low
25
not supported
3
-
38400
64 QAM Low
12.5
82
3
112.5
38400
16 QAM Low
12.5
not supported
3
-
38400
QPSK
12.5
not supported
3
-
38400
QPSK Low
12.5
not supported
3
-