Comtech EF Data CDM-625A - Manual (Page 344)

CDM-625A Advanced Satellite Modem MN-CDM625A
Serial-based Remote Product Management Revision 3
8–32
Parameter
Command
(Instruction
& Qualifier)
Length of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
… Retrieve
next five
unread Stored
Statistics
(cont.)
F=Number of Rx ModCod changes in hex format during sample period.
ddmmyy=date stamp.
hhmmss=time stamp.
• In VersaFEC-2 ACM mode, the statistics sub-body is defined as AA.ABB.BCC,DD,ddmmyyhhmmss, where:
AA.A=Minimum SNR during sample period.
BB.B=Average SNR during sample period.
CC=Maximum Rx ModCod in decimal during sample period.
DD=Minimum Rx ModCod in decimal during sample period.
ddmmyy=date stamp.
hhmmss=time stamp.
Notes:
1) If there are less than five retrievable statistics, the remaining positions are padded with zeros.
2) If there are no new events, the unit replies with RNS*.
3) Do not mix use of RNS and RNN. Comtech EF Data recommends that you limit your use of RNS to maintain
backward-compatibility with other legacy modems or when the unit is used in CDM600/L Emulation mode. RNS is a
legacy query that does NOT provide Rx Signal Level (RSL) information as RNN does. Since RNS and RNN use the
same index system for statistics entries, if users mix use of the two queries, the statistics entries won't be displayed
sequentially by either RNS or RNN. For this reason, and if you change your operating mode between Non-ACM and
ACM (IP-ACM or V2-ACM) modes, Comtech EF Data recommends that you execute the Clear All Stored Statistics
(CAS=) command before retrieving any further statistics.
Retrieve next
5 unread New
Stored
Statistics
N/A 180 bytes Query only.
Unit returns the oldest five Stored Statistics (including newly added Minimum and Average Rx Signal Level (RSL)), which
have not yet been read, in the form [CR]sub-body[CR]sub-body[CR] sub-body[CR]sub-body[CR]sub-body, where:
• For all non-ACM modes, the statistics sub-body is defined as AA.ABB.BC.CD.DEE.E,FF.Fddmmyyhhmmss
where:
AA.A=Minimum Eb/No during sample period.
BB.B=Average Eb/No during sample period.
C.C=Maximum Tx Power Level Increase during sample period.
D.D=Average Tx Power Level Increase during sample period.
EE.E=Negative value of Minimum Rx Signal Level (RSL) in dB during sample period.
FF.F=Negative value of Average Rx Signal Level (RSL) in dB during sample period.
ddmmyy = date stamp.
hhmmss = time stamp.
• In VersaFEC ACM (IP-ACM) mode the statistics sub-body is defined as
AA.ABB.BC,DG,HEE.E,FF.Fddmmyyhhmmss, where:
AA.A=Minimum SNR during sample period.
BB.B=Average SNR during sample period.
C=Current IP-ACM Rx ModCod when the statistic entry was logged.
D=Maximum Rx ModCod in hexadecimal during sample period.
G=Minimum Rx ModCod in hexadecimal during sample period.
H=Number of Rx ModCod changes in hex format during sample period.
EE.E=Negative value of Minimum Rx Signal Level (RSL) in dB during sample period.
FF.F=Negative value of Average Rx Signal Level (RSL) in dB during sample period.
ddmmyy = date stamp.
hhmmss = time stamp.
N/A RNN? RNN=[CR]sub-
body[CR]sub-
body[CR]
sub-body[CR]sub-
body[CR]sub-body
(see Description of
Arguments)