Comtech EF Data CDM-710 Installation And Operation Manual page 208

CDM-710 Broadcast Satellite Modem
Appendix A
Command Arguments for
Parameter (Instruction Command or
Type Code and Response to
Qualifier) Query
Auto Switch
ASW= 1 byte
Mode
Tx Output
IMP= 1 byte
Impendance
Tx ASI
TAB= 2 bytes
Bandwidth
Tx Alpha Rolloff TAR=
1 byte
Tx Clock
TCI= 2 bytes
Invert
Tx Data Invert
TDI= 2 bytes
Description of Arguments
Command or Query.
Unit returns the redundancy auto/manual mode of the unit in the form x, where:
0 = Manual
1 = Automatic
Example: ASW=0 (Manual Mode selected)
Command or Query.
Tx output impedance in the form x, where:
0=50 Ohm
1=75 Ohm
Example: IMP=0 (Impedance set to 50 Ohms)
Note: Setting Tx Impedence is only possible on 70/140 MHz units.
Command or Query.
Tx ASI Bandwidth in the form sx, where:
s=Defines which interface slot (1 or 2)
x=Defines ASI Bandwidth, where:
0=Wide
1=Narrow
Example: TAB=11 (Narrow bandwidth selected)
Command or Query.
Tx Alpha Rolloff in the form x, where:
0 = 20%
1 = 25%
2 = 35%
Example: TAR=0 (Tx Alpha Rolloff of 20% selected)
Command or Query.
Invert Transmit Clock, where:
s=Defines which interface slot ( 1 or 2 )
x=Invert Transmit Clock, where:
0=Normal
1=Inverted
Note: Command valid Only with HSSI)
Example: TCI = 11 (Inverted TX Clock, Slot 1 selected)
Command or Query.
Invert Transmit Data, where:
s=Defines which interface slot ( 1 or 2 )
x=Invert Transmit Data, where:
0=Normal
1=Inverted
Note: Command valid Only with HSSI
Example: TDI = 111 (Inverted TX Data selected)
A–34
MN/CDM710.IOM
Query
Response to (Instruction
Response to Query
Command Code and
Qualifier)
ASW= ASW? ASW=x
ASW? (See Description of
ASW* Arguments)
ASW#
IMP= IMP? IMP=x
IMP?
IMP*
IMP#
TAB= TAB?s TAB=sx
TAB?
TAB*
TAB#
TAR= TAR? TAR=x
TAR?
TAR*
TAR#
TCI = TCI?s TCI =sx
TCI? (See Description of
TCI * Arguments)
TCI #
TDI = TDI?sc TDI =sx
TDI? (See Description of
TDI * Arguments)
TDI #
Revision 11