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Command
Arguments for
Parameter
(Instruction
Command or
Code and
Response to
Type
Qualifier)
Live Unit Faults
N/A
8 bytes
Modem
MRC=
1 byte
Reference Clock
Appendix C
Description of Arguments
Query
Query only.
Live Unit Faults are returned as a 32 bit Hexadecimal value. Bit
values are defined as follows:
80000000 = Power Supply out of range
40000000 = Reference not locked
20000000 = 250 MHz Clock not locked
10000000 = Ext Reference Activity
08000000 = CPLD #1 not loaded
04000000 = CPLD #2 not loaded
02000000 = Mod FPGA not loaded
01000000 = Demod FPGA not loaded
00800000 = Option Card FPGA not loaded
00400000 = TRANSEC card not ready
00200000 = Modem over temperature
00100000 = Cooling Fan
00080000 = NP Card Mailbox Comm Error
00040000 = TRANSEC Card Mailbox Comm Error
Example: LUF = 00000000 indicates No Unit Faults
Command or Query.
Modem Reference Clock (for Frequency Accuracy), where:
0 = Internal
1 = External 1 MHz
2 = External 5 MHz
3 = External 10 MHz
Example: MRC = 0 (Internal)
Response to
Command
N/A
MRC=
MRC?
MRC*
MRC#
C–42
SLM-5650B Satellite Modem
Revision 2
Query
Response to
(Instruction
Query
Code and
Qualifier)
LUF=xxxxxxxx
LUF?
(see Description
of Arguments)
MRC?
MRC=x
(see Description
of Arguments)
MN-SLM-5650B
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