Specifications

Remote Control Operation SDM-650B Satellite Modem
B–20 Rev. 6
B.1.4.1.4 Demodulator/Decoder Configuration Program
This command is used by the SMS-658 M:N protection switch to collect information that
is necessary to configure backup modems.
Command: <add/DCP_”cr”
Response: >add/DCP_”cr”
BBL_xxx”cr” Baseband Loopback (ON/OFF)
IFL_xxx”cr” IF Loopback (ON/OFF)
RFL_xxx”cr” RF Loopback (ON/OFF)
DF_nnn.nnnn”cr” Demodulator Frequency
DR_nnn_mmmm.m”cr” Demodulator Data Rate
DE_xxx”cr” Descrambler Enable (ON/OFF)
RC_xxx”cr” Receive Clock (NRM/INV)
BERT_xxxx”cr” BER Threshold
SR_xxx”cr” Sweep Reacquisition (seconds)
FAM_xxx”cr” Fast Acquisition Mode
(See Note 1) SCF_snnnnn”cr” Sweep Center Frequency
(See Note 1) SWR_nnnnn”cr” Sweep Width
(See Note 1) SD_s”cr” Sweep Direction
(See Note 2) BC_xxx”cr” Buffer Clock Source
(See Note 2) IBS_nnnnn”cr””lf”] Interface Buffer Size
Notes:
1. “SCF_”, “SWR_”, and “SD_” responses are returned only when fast acquisition
is enabled. See the “FAM_” command definition.
2. “BC_” and “IBS_” responses are returned only when Buffer Control is enabled.
See the “BUFF_” command definition.
B.1.4.2 Modem Faults Status (Summary)
This command returns the current overall fault conditions of the modem.
Command: <add/MFS_”cr”
Response: >add/MFS_”cr”
DMD_xxx”cr” Demodulator (FLT/OK)
MOD_xxx”cr” Modulator (FLT/OK)
CEQ_xxx”cr” Common Equipment (FLT/OK)
(See Note) IRX_xxx”cr””lf”] Interface Receive Side (FLT/OK)
Note: “IRX_” response is returned only when Buffer Control is enabled. See the
“BUFF_” command definition.