Specifications

Trojan Interface SDM-650B Satellite Modem
G–34 Rev. 5
G.6.4.5.1.4 Demodulator/Decoder Configuration Program
This command is used by the SMS-658 or SMS-758 M:N protection switch to collect
information that is necessary to configure back-up modems.
Command: <add/DCP_”cr”
Response: >add/DCP_”cr”
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)
BERT_xxxx”cr” BER Threshold
SR_xxx”cr” Sweep Reacquisition (seconds)
BBL_xxx”cr” Baseband Loopback
RC_xxx”cr” Receive Clock (INV/NRM)
ERF_nnnnn”cr” External Reference Frequency (kHz)
IRC_xxx”cr” Interface Reference Clock source
(TXC/RXC/EXT/INT)
IBD_nnnnn”cr” Interface Buffer Depth (in bits)
FAM_xxx”cr” Fast Acquisition Mode
SCF_snnnnn”cr” Sweep Center Frequency
SWR_nnnnn”cr” Sweep Width
SD_s”cr””lf”] Sweep Direction
Note: “SCF_”, “SWR_”, and “SD_” responses are returned only when fast acquisition is
enabled. See the “FAM_” command definition.
G.6.4.5.1.5 Interface Configuration Status
This command causes a block of data to be returned by the addressed modem. The block
reflects the current configuration of the interface.
Command: <add/ICS_”cr”
Response: >add/ICS_”cr”
BBL_xxx”cr” Base Band Loopback (ON/OFF)
TC_xxx”cr” Transmit Clock (REF/EXT)
RC_xxx”cr” Receive Clock (INV/NRM)
ERF_nnnnn”cr” External Reference Frequency (kHz)
IRC_xxx”cr” Interface Reference Clock source
(TXC/RXC/EXT/INT)
IBD_nnnnn”cr””lf”] Interface Buffer Depth (in bits)