Comtech EF Data CDM-600/600L - Manual (Page 214)

CDM-600/600L Open Network Satellite Modem Revision 3
Appendix D MN/CDM600L.IOM
D–22
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
Force 1:1
Switch FSW= 1 byte Command only.
Forces the unit to toggle the Unit Fail relay to the “fail” state for approx
500ms. If the unit is a 1:1 pair, and it is currently the ‘Online’ unit, this
will force a switchover, so the unit will then be in ‘Standby’ mode. The
command is always executed by the unit, regardless of whether it is
stand-alone, in a 1:1 pair, or part of a 1:N system.
Note: This command takes no arguments.
FSW=
N/A N/A
Initialize
Events
Pointer IEP= None Command only.
Resets internal pointer to allow RNE? queries to start at the beginning
of the stored events log.
IEP=
IEP# N/A N/A
Initialize
Statistics
Pointer ISP= None Command only.
Resets internal pointer to allow RNS? queries to start at the beginning
of the statistics log.
ISP=
ISP# N/A N/A
Local/Remote
Status LRS= 1 byte, value of
0 or 1 Command or Query.
Local/Remote status, where:
0=Local
1=Remote
Example: LRS=1 (selects Remote)
LRS=
LRS?
LRS*
LRS# LRS? LRS=x
(see Description of
Arguments)
Modem
Reference
Clock
(CDM-600L ONLY)
MRC= 1 byte, value of
0 thru 3 Command or Query.
Modem Reference Clock (For Frequency Accuracy), where:
0=Internal
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=External 20 MHz
MRC=
MRC?
MRC*
MRC# MRC? MRC=x
(see Description of
Arguments)
Unit Alarm
Mask MSK= 6 bytes Command or Query.
Alarm mask conditions in form abcdef, where:
a=Tx AIS (0=unmasked, 1=masked)
b=Rx AIS (0=unmasked, 1=masked)
c=buffer slip Alarm (0=unmasked, 1=masked)
d=spare
e=Rx AGC Alarm (0=unmasked, 1=masked)
f=Eb/No Alarm (0=unmasked, 1=masked)
Example: MSK=010110
MSK=
MSK?
MSK*
MSK# MSK? MSK=abcdef
(see Description of
Arguments)
Number of
Unread stored
Events N/A 3 bytes Query only.
Unit returns the Number of stored Events which remain Unread (via
Remote Control), in the form xxx.
Example: NUE=126
N/A NUE? NUE=xxx
(see Description of
Arguments)
Number of
Unread stored
Statistics N/A 3 bytes Query only.
Unit returns the number of stored Statistics which remain Unread (via
Remote Control), in the form xxx.
Example: NUS=187
N/A NUS? NUS=xxx
(see Description of
Arguments)