Comtech EF Data CDM-570A Installation And Operation Manual page 292

Command
Parameter (Instruction
Type Code and
Qualifier)
External ERF= 1 byte,
Reference value of 0 thru 5
Frequency
Internal 10MHz ADJ= 4 bytes,
Reference numeric
Adjustment
Warm-up Delay WUD= 1 byte,
value 0 or 1
Countdown CTD= 3 bytes
Serial-based Remote Product Management
Arguments for
Command or
Response to
Query
Command or Query.
Sets or returns External Reference Frequency in the form x, where:
0 = Internal
1 = External 1 MHz
2 = External 2 MHz
3 = External 5 MHz
4 = External 10 MHz
5 = Internal 10MHz plus output (the Reference is available on the "Ext Ref" rear
connector (small rear-panel LED indicates when ON))
Example: <0/ERF=0 (External reference not used – uses internal)
Command or Query.
Sets or returns fine adjustment of the modem Internal 10MHz Reference in the
form sddd, where:
s = sign (+ or –), and
ddd = value from 000 to 999
Command or Query.
Sets or returns Warm-up Delay for internal frequency reference (OCXO) in the form
x, where:
0 = Disabled (instant on – no delay for OCXO to reach temperature)
1 = Enabled (unit waits until OCXO reaches correct temperature)
Example: <0/WUD=1 (selects Warm-up Delay)
Command or Query.
As a command, only takes the argument 000. Truncates the Warm-up delay
period to zero and forces the unit into 'instant-on' mode. For example, CTD=000
terminates the warm-up delay.
As a query, returns the Warm-up Delay countdown, in seconds remaining. Range
is from 000 to 200 seconds.
Example: <0/CTD?
>0/CTD=067 (means the unit will wait another 67 seconds before it
enters its operational state)
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Description of Arguments
8–26
Revision 5
Query
Response to
(Instruction Code
Command
and Qualifier)
ERF= ERF? ERF = x
ERF? (see Description of
ERF * Arguments)
ERF #
ADJ= ADJ? ADJ=sddd
ADJ?
ADJ* Arguments)
ADJ#
WUD= WUD? WUD=x
WUD? (see Description of
WUD* Arguments)
WUD#
CTD= CTD? CTD=xxx
CTD? (see Description of
CTD* Arguments)
CTD#
MN-CDM570A
Response to
Query
(see Description of