2 external reference frequency, 3 interface loop-back (on/off), 4 base band loop-back (on/off) – Comtech EF Data SDM-309B User Manual
Page 187: 5 interface coding format transmit (ami/hdb3/b8zs), 6 interface coding format receive (ami/hdb3/b8zs), 7 scrambler enable (on/off)

Remote Control
SDM-309B Satellite Modem
B-B–10
MN/U-SDM309B Rev. #
4.3.2 External Reference Frequency
Command:
<add/ERF_nnnnn”cr”
Response:
>add/ERF_nnnnn”cr””lf”]
nnnnn = 8 to 99992 (external reference frequency in KHz, must be a a multiple of 8KHz).
Status Only:
<add/ERF_”cr”
Response:
>add/ERF_nnnnn”cr””lf”]
4.3.3 Interface Loop-back (ON/OFF)
Command:
<add/ILB_xxx”cr”
(xxx = ON or OFF)
Response:
>add/ILB_xxx”cr””lf”]
Status Only:
<add/ILB_”cr”
Response:
>
add/ILB_xxx”cr””lf”]
4.3.4 Base Band Loop-back (ON/OFF)
Command:
<add/BBL_xxx”cr”
(xxx = ON or OFF)
Response:
>add/BBL_xxx”cr””lf”]
Status Only:
<add/BBL_”cr”
Response:
>
add/BBL_xxx”cr””lf”]
4.3.5 Interface Coding Format Transmit (AMI/HDB3/B8ZS)
Command:
<add/ICFT_xxxx”cr”
(xxxx = AMI,HDB3 or B8ZS)
Response:
>add/ICFT_xxxx”cr””lf”]
Status Only:
<add/ICFT_”cr”
Response:
>add/ICFT_xxxx”cr””lf”]
4.3.6 Interface Coding Format Receive (AMI/HDB3/B8ZS)
Command:
<add/ICFR_xxxx”cr”
(xxxx = AMI,HDB3 or B8ZS)
Response:
>add/ICFR_xxxx”cr””lf”]
Status Only:
<add/ICFR_”cr”
Response:
>add/ICFR_xxxx”cr””lf”]
4.3.7 Scrambler Enable (ON/OFF)
Command:
<add/SE_xxx”cr”
(xxx = ON or OFF)
Response:
>add/SE_xxx”cr””lf”]
Status Only:
<add/SE_”cr”
Response:
>add/SE_xxx”cr””lf”]