Comtech EF Data cdm-570a - Page 316

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Serial-based Remote Product Management 8–50 MN-CDM570A
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments for
Command or
Response to
Query
Description of Arguments
Response to
Command
Query
(Instruction Code
and Qualifier)
Response to
Query
Rx E
b
/N
0
N/A
4 bytes
Query only.
Returns the value of E
b
/N
0
, from 0 to 16 dB, in the form xxxx, resolution= 0.1 dB.
Returns 99.9 if demod is unlocked.
For values >16.0 dB, Response = EBN=+016
Example: <0/EBN?
>0/EBN=12.3 (E
b
/N
0
= 12.3 dB)
N/A
EBN?
EBN=xxxx
(see Description of
Arguments)
Redundancy
State
N/A
1 bytes, 0 or 1
Query only.
Returns the redundancy state of the unit in the form x, where:
0 = Offline
1 = Online
Example: <0/RED?
>0/RED=1 (selects Online)
N/A
RED?
RED=x
(See Description of
Arguments)
Temperature
N/A
3 bytes
Query only.
Returns the unit internal temperature, in degrees C, in the form sxx, where:
s = sign (+ or –)
xx = value
Example: <0/TMP?
>0/TMP=+26
N/A
TMP?
TMP=sxx
(see Description of
Arguments)
Offline Unit
Status
N/A
6 bytes
Query only. (1:1 set-up)
Sent to the online modem of a 1:1 pair. Returns the fault status information (FLT?)
of the offline modem in the form abcdef, where:
abcdef = The FLT? response information from the offline unit
Note: This is the only way to interrogate the status of an offline modem at the
distant-end of a link.
N/A
OUS?
OUS=abcdef
(see Description of
Arguments)
ACM Remote
Signal Noise Ratio
N/A
4 bytes
Query only.
Returns the value of SNR of the remote demod in the form xx.x, where:
99.9=Demod is unlocked.
xx.x=Not in ACM.
EXAMPLE: <0/RSN?
>0/RSN=12.4
N/A
RSN?
RSN=xx.x
(see Description of
Arguments)
ACM Local Signal
Noise Ratio
N/A
4 bytes
Query only.
Returns the value of Local Signal Noise Ratio in the form xx.x, where:
99.9=demod is unlocked.
EXAMPLE: <0/SNR?
>0/SNR=12.3 (indicates SNR @12.3 dB)
N/A
SNR?
SNR=xx.x
(see Description of
Arguments)