B.3.3 interface – Comtech EF Data SDM-9000 User Manual

Page 224

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Remote Control Operation

SDM-9000 Satellite Modem

B–6

Rev. 4

RF
Loopback

Command:
Response:

Status:
Response:

<add/RFL_xxx'cr'
>add/RFL_xxx'cr''lf']

<add/RFL_'cr'
>add/RFL_xxx'cr''lf']

Where: xxx = ON or OFF.

IF
Loopback

Command:
Response:

Status:
Response:

<add/IFL_xxx'cr'
>add/IFL_xxx'cr''lf']

<add/IFL_'cr'
>add/IFL_xxx'cr''lf']

Where: xxx = ON or OFF.

Bit Error
Rate
Threshold

Command:
Response:

Status:
Response:

<add/BERT_xxxx'cr'
>add/BERT_xxxx'cr''lf']

<add/BERT_'cr'
>add/BERT_xxxx'cr''lf']

Where: xxxx = NONE or 1

-n

(where n = 3, 4, 5, 6, 7, or 8

[exponent of threshold]).

Reed-
Solomon
Decoder
Enable

Command:
Response:

Status:
Response:

<add/RSDE_xxx'cr'
>add/RSDE_xxx'cr''lf']

<add/RSDE_'cr'
>add/RSDE_xxx'cr''lf']

Where: xxx = ON, OFF, or CORR_OFF.

Note: If the Reed-Solomon Option is not installed, only 'OFF'
will be allowed.

Sweep
Width
Range

Command:
Response:

Status:
Response:

<add/SWR_nnnnnn'cr'
>add/SWR_nnnnnn'cr''lf']

<add/SWR_'cr'
>add/SWR_nnnnnn'cr''lf']

Where: nnnnn = 0 to 120000, in 1 Hz steps.

Demodulato
r Spectrum
Rotation

Command:
Response:

Status:
Response:

<add/DSR_xxxx'cr'
>add/DSR_xxxx'cr''lf']

<add/DSR_'cr'
>add/DSR_xxxx'cr''lf']

Where: xxxx = NRM (normal spectrum) or INV (inverted
spectrum).

B.3.3 Interface

Transmit
Clock
Phase

Command:
Response:

Status:
Response:

<add/TCP_xxx'cr'
>add/TCP_xxx'cr''lf']

<add/TCP_'cr'
>add/TCP_xxx'cr''lf']

Where: xxx = NRM (normal clock phasing) or INV (inverted
clock phasing).

External
Reference
Frequency

Command:
Response:

Status:
Response:

<add/ERF_nnnnn.nnn'cr'
>add/ERF_nnnnn.nnn'cr''lf']

<add/ERF_'cr'
>add/ERF_nnnnn.nnn'cr''lf']

Where: nnnnn.nnn = 1544.000 to 51840.000 (steps of 8 kHz if
data rate is under or equal to 20000.0 kbit/s or at data rate).

Buffer Clock

Command:
Response:

Status:
Response:

<add/BC_xxx'cr'
>add/BC_xxx'cr''lf']

<add/BC_'cr'
>add/BC_xxx'cr''lf']

Where: xxx = INT (internal SCT clock), EXT (external TX
terrestrial clock), SAT (receive satellite clock), or REF (external
reference clock).

Note: If the OPERATION MODE is set for RX_ONLY (non-
G.703 interface only), 'INT' will not be allowed.

Interface
Buffer Size

Command:
Response:

Status:
Response:

<add/IBS_nn'cr'
>add/IBS_nn'cr''lf']

<add/IBS_'cr'
>add/IBS_nn'cr''lf']

Where: nn = 0 to 32 (in 2 millisecond steps).

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