Remote Control
CDM-550T Satellite Modem
15–12
Rev.
1.3
Parameter
Type
Command
(InstructionC
ode and
qualifier)
Arguments for
Command or
Response to
Query
Description of arguments
(note that all arguments are ASCII numeric codes, that is,
ASCII codes between 48 and 57)
Response to Command
(target to controller)
Query
(Instruction
Code and
qualifier)
Response to query
(target to controller)
Unit
Interface Type
ITF=
1 byte, value of
1,2 or 3
Command or Query.
Terrestrial interface type, where:
1 = EIA-422/EIA530 DCE,
2 = V.35 DCE
3 = EIA-232 (sync).
All other codes invalid. Example: ITF=2 (V.35)
ITF= (message ok)
ITF? (received ok, but
invalid args found)
ITF* (message ok, but
not permitted in current
mode)
ITF?
ITF=x
(same format
as command argument)
Unit Framing
Mode
FRM=
1 byte, value of
0 or 1
Command or Query.
Unit operating mode, where
0 = Unframed - transparent (distant-end M&C not possible)
1 = Framed (EDMAC distant-end M&C possible)
Example: FRM=1 (which is framed)
FRM= (message ok)
FRM? (received ok,
but invalid argument
found)
FRM* (message ok, but
not permitted in current
mode)
FRM?
FRM=x
(same format as
command argument)
Unit Test
Mode
TST=
1 byte, value of
0,1,2,3,4 or 5
0 = Normal
1 = IF loopback
2 = Digital loopback
3 = I/O loopback
4 = Tx CW
5 = Tx Alternating 1,0 pattern
6 = RF loopback
All other codes invalid. Example TST=4 (which is transmit
CW)
TST= (message ok)
TST? (received ok,
but invalid argument
found)
TST* (message ok, but
not permitted in current
mode)
TST?
TST=x
(same format as
command argument)
Unit IF
Impedance
IMP=
1 byte, value of
5 or 7
Command or Query.
IF interface impedance, where:
5 = 50 ohms
7 = 75 ohms
All other codes invalid. Example IMP=7 ( 75 ohms)
IMP= (message ok)
IMP? (received ok,
but invalid argument
found)
IMP?
IMP=x
(same format as
command argument)
Unit Alarm
Mask
MSK=
5 bytes, each
with a value of 0
or 1
Command or Query.
Alarm mask conditions, in the form abcde, where:
a = mask Tx AIS alarm, b = mask Rx AGC alarm
c = mask buffer alarms, d = mask Rx AIS alarm
e = mask Eb/No alarm
Setting any of these bytes to 0 unmasks alarm, setting to 1
masks them. Example: MSK=01011
MSK= (message ok)
MSK? (received ok,
but invalid arguments
found)
MSK* (message ok, but
not permitted in current
mode)
MSK? MSK=abcde
(same format as
command arguments)
Содержание CDM-550T
Страница 2: ......
Страница 22: ...Functional Description CDM 550T Satellite Modem 3 2 Rev 1 3 This page is intentionally blank...
Страница 30: ...Connector Pinouts CDM 550T Satellite Modem 5 4 Rev 1 3 This page is intentionally blank...
Страница 33: ...CDM 550T Satellite Modem Front Panel Operation Rev 1 3 6 3 Figure 6 2 Principle Menu Trees...
Страница 59: ...CDM 550T Satellite Modem Front Panel Operation Rev 1 3 6 29 Figure 6 2 Loopback Modes...
Страница 96: ...Clocking CDM 550T Satellite Modem 10 4 Rev 1 3 Figure 10 1 Tx Clock Modes...
Страница 97: ...CDM 550T Satellite Modem Clocking Rev 1 3 10 5 Figure 10 2 RX Clock Modes...
Страница 98: ...Clocking CDM 550T Satellite Modem 10 6 Rev 1 3 This page has been intentionally left blank...
Страница 102: ...EDMAC Channel CDM 550T Satellite Modem 11 4 Rev 1 3 This page has been intentionally left blank...
Страница 108: ...Flash Upgrading CDM 550T Satellite Modem 13 2 Rev 1 3 This page is intentionally blank...
Страница 120: ...Remote Control CDM 550T Satellite Modem 15 6 Rev 1 3 This page has been intentionally left blank...
Страница 136: ...Remote Control CDM 550T Satellite Modem 15 22 Rev 1 3 This page has been intentionally left blank...
Страница 138: ...Cable Drawings CDM 550T Satellite Modem A 2 Rev 1 3...
Страница 139: ...CDM 550T Satellite Modem Cable Drawings Rev 1 3 A 3...
Страница 140: ...Cable Drawings CDM 550T Satellite Modem A 4 Rev 1 3...
Страница 144: ...Eb No Measurement CDM 550T Satellite Modem B 4 Rev 1 3 This page is intentionally left blank...
Страница 148: ...Async Overhead Option CDM 550T Satellite Modem C 4 Rev 1 3 This page is intentionally left blank...