Comtech EF Data SDM-650B User Manual

Page 330

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:

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:

Response:

>add/ICS_”cr”
BBL_xxx”cr”

Base Band Loopback (ON/OFF)

TC_xxx”cr”

Transmit Clock (REF/EXT)