Comtech EF Data SDM-9000, Installation And Operation Manual

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SDM-9000 Satellite Modem Remote Control Operation
Rev. 4 B–17
Interface
Read Error
Status Command:
Response: <add/IRES_'cr'
>add/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.
E
b
/N
0
Status Command:
Response: <add/EBN0_'cr'
>add/EBN0_xnn.ndB'cr''lf'] Where:
x = < or > (data modifier to indicate that the E
b
/N
0
is
less than or greater than the returned value).
nn.n = 1.0 to 99.9 (E
b
/N
0
value).
Notes:
1. The 'x' (< or >) parameter is only returned if the
E
b
/N
0
has exceeded the computational resolution of
the system.
2. 'No Data' is returned if the E
b
/N
0
cannot be
calculated.
3. 'Sampling' is returned if not enough data is currently
available to calculate the E
b
/N
0
.
Modulator
Rate Status Command:
Response: <add/MR_'cr'
>add/MR_nnnnn_mmmmm.mmm'cr''lf'
] Where:
nnnnn = One of the following coder rates:
1/2 (QPSK 1/2)
3/4 (QPSK 3/4)
7/8 (QPSK 7/8)
16Q34 (16QAM 3/4)
16Q78 (16QAM 7/8)
8P23 (8PSK 2/3)
8P56 (8PSK 5/6)
N/A (Not Assigned)
mmmmm.mmm = Data rate in kHz.