Comtech EF Data SNM-1010L - Manual (Page 220)

SNM-1010L Data/Control Modem Revision 0
Remote Control Channel Commands/Responses MN/SNM1010L.OM
Corrected BER Log Status:
Response:
Examples: MC CBEL_'cr'
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,<101
2,,,,,,,,,,,,,,,,,,,,,'cr''lf']
Where: t.t = Time between 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).
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 nominal system rate
indicated by the time parameter (t.t). The samples are stored
in a thirty-two-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.
Interface Read Error
Status Status:
Response:
MC IRES_'cr'
IRES_tttt_xn.nE-ee'cr''lf']
Where: tttt = FRM (FRAME) or 2047 (indicates type of error
being read).
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).
This command returns frame or 2047 error rate. The 'IRE_'
configuration command is used to select reading of frame or
2047 errors.
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.
Eb/N0 Status Status:
Response:
MC EBN0_'cr'
EBN0_xnn.ndB'cr''lf']
Where: x = < or > (data modifier to indicate that the Eb/N0
is less than or greater than the returned value).
nn.n = 1.0 to 99.9 (Eb/N0 value).
Notes:
1. The 'x' (< or >) parameter is only returned if the
Eb/N0 has exceeded the computational resolution of
the system.
2. 'No Data' is returned if the Eb/N0 cannot be
calculated.
3. 'Sampling' is returned if not enough data is currently
available to calculate the Eb/N0.
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