Remote Control Operation
SDM-9000 Satellite Modem
B–16
Rev. 4
Corrected
BER
Command:
Response:
<add/CBER_'cr'
>add/CBER_xm.mE-ee'cr''lf']
Where:
x = < or > (data modifier to indicate that the error rate is
less than or greater than the returned value).
m.m = 1.0 to 9.9 (error rate mantissa).
ee = 1 to 99 (error rate exponent).
Notes:
1. The 'x' (< or >) parameter is only returned if the
error rate has exceeded the computational
resolution of the system.
2. 'No Data' is returned if the error rate cannot be
calculated.
3. 'Sampling' is returned if not enough data is currently
available to calculate the error rate.
Corrected
BER Log
Command:
Response:
Examples:
<add/CBEL_'cr'
>add/CBEL_t.t;s1, s2, s3...sn'cr''lf']
[No new compiled data from last
poll]
>add/CBEL_1.0 'cr''lf']
[Momentary lock in 32 time
intervals: 2.0E-3, 5.2E-7, 1.0E-10,
<1.0E-12]
>add/CBEL_1.0; ,,,,,,,2003, 5207,
1010, <1012,,,,,,,'cr''lf'
Where:
t.t = Time corrected BER samples in seconds ('0.1' to
'9.9').
; = At least one data point has been logged.
s1 to sn = Corrected BER samples in the format of
xmmee (where: x = the optional data modifier '<' or '>'
[less than or greater than], mm = the corrected BER
mantissa ['10' for 1.0 to '99' for 9.9], ee = the corrected
BER negative exponent ['00' to '99']).
Error data samples are compiled at the normal system rate
indicated by the time parameter (t.t). The samples are
stored in a 32-element FIFO. When the 'CBEL_' command
is received, the samples in the FIFO are formatted and
returned as indicated. The FIFO is then flushed. If the
FIFO becomes full, the oldest sample will be lost as the
current sample is written.
Notes:
1. The most recent sample is represented by 'sn',
while the least recent sample is represented by 's1'.
2. Data delimited by a comma (',') will be returned for
all time intervals logged.
3. The optional data modifiers '<' and '>' are only
present if the error rate exceeds the computational
resolution of the system.
Содержание SDM-9000
Страница 1: ...Part Number MN SDM9000 IOM Revision 4 SDM 9000 Satellite Modem Installation and Operation Manual...
Страница 2: ......
Страница 5: ...8 Mbit s w IDR Figure 1 7 16QAM BER Performance Curves with Reed Solomon Filename T_ERRATA 3...
Страница 8: ......
Страница 27: ...SDM 9000 Satellite Modem Introduction Rev 4 1 5 Figure 1 3 SDM 9000 Block Diagram...
Страница 42: ...Introduction SDM 9000 Satellite Modem 1 20 Rev 4 This page is intentionally left blank...
Страница 64: ...Configuration SDM 9000 Satellite Modem 3 6 Rev 4 JP1 Figure 3 4 Interface PCB AS 3971...
Страница 65: ...SDM 9000 Satellite Modem Configuration Rev 4 3 7 Figure 3 5 Interface PCB AS 4477...
Страница 66: ...Configuration SDM 9000 Satellite Modem 3 8 Rev 4 JP1 JP6 JP7 Figure 3 6 Interface PCB AS 5618...
Страница 70: ...Configuration SDM 9000 Satellite Modem 3 12 Rev 4 Figure 3 7 Nyquist Filter Installation...
Страница 83: ...SDM 9000 Satellite Modem Operation Rev 4 4 9 This page is intentionally left blank...
Страница 87: ...SDM 9000 Satellite Modem Operation Rev 4 4 13 This page is intentionally left blank...
Страница 104: ...SDM 9000 Satellite Modem Operation Rev 4 4 31 This page is intentionally left blank...
Страница 107: ...Operation SDM 9000 Satellite Modem 4 34 Rev 4 This page is intentionally left blank...
Страница 124: ...SDM 9000 Satellite Modem Operation Rev 4 4 51 Figure 4 17 RF Loopback Figure 4 18 IF Loopback...
Страница 133: ...SDM 9000 Satellite Modem Theory of Operation Rev 4 5 5 Figure 5 3 Modulator RF Section Block Diagram...
Страница 150: ...Theory of Operation SDM 9000 Satellite Modem 5 22 Rev 4 Figure 5 6 Interface Block Diagram...
Страница 158: ...Theory of Operation SDM 9000 Satellite Modem 5 30 Rev 4 This page is intentionally left blank...
Страница 167: ...SDM 9000 Satellite Modem Maintenance Rev 4 6 9 WITH NOISE WITHOUT NOISE Figure 6 4 Typical Eye Constellations...
Страница 186: ...Maintenance SDM 9000 Satellite Modem 6 28 Rev 4 This page is intentionally left blank...
Страница 218: ...Options SDM 9000 Satellite Modem A 32 Rev 4 This page is intentionally left blank...
Страница 242: ...Remote Control Operation SDM 9000 Satellite Modem B 24 Rev 4 ref SE_ command...
Страница 254: ...Glossary SDM 9000 Satellite Modem g 6 Rev 4 This page is intentionally left blank...
Страница 256: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...