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CDM-750 Advanced High-Speed Trunking Modem
Appendix D
Command
Parameter
(Instruction
Type
& Qualifier)
N/A
9 bytes
Faults and
Status (cont.)
Link Margin
N/A
4 bytes
Rx BERT Pattern
RBP=
1 bytes
Number of
Arguments
5= G.703 PIIC2 Symbol Clock PLL
6=G.703 PIIC1 Input Signal Loss
7=G.703 PIIC2 Input Signal Loss
cc=Rx status:
00=No Fault
01=Demodulator unlocked
02=AGC Signal Level
03=CnC Lock
04=Output Data
05=Es/No
06=PLL
07=General Test Fault
08= G.703 PIIC1 Buffer Overflow
09= G.703 PIIC1 Buffer Underflow
10= G.703 PIIC1 Buffer PLL
11= G.703 PIIC2 Buffer Overflow
12= G.703 PIIC2 Buffer Underflow
13= G.703 PIIC2 Buffer PLL
14= DeComp Inv
d=Change in modem fault status since last poll
0=unchanged
1=changed
e=Change in modem configuration since last poll
0=unchanged
1=changed
xx=spares
Query only.
Unit returns the value of the Link Margin. Returns 00.0 if demod is unlocked.
Example: =12.3
Command or Query.
This command sets the PN loopback pattern type in the form x, where:
0=2^23-1
1=Reserved
2=Reserved
3=Reserved
4=Reserved
5=2047
6=2^15-1
Example: RBP=0 (default 2^23-1)
Description of Arguments
D–33
Query
Response to
(Instruction &
Response to Query
Command
Qualifier)
FLT?
N/A
FLT=aabccdexx
(see description of
arguments)
N/A
LNK?
LNK=xxxxx
(see Description of
Arguments)
RBP =
RBP?
RBP =
RBP?
(see Description of
RBP *
Arguments)
RBP #
Revision 1
MN-CDM750
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