Comtech EF Data CDM-760 - Page 263

Serial Interface Operation Revision 3
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
8–20
Parameter Type
Controller-to-Target
Instruction Code and
Qualifier
Arguments for
Command or
Query
Description of Arguments
(Note that all arguments are ASCII numeric codes from 48 to 57)
Target-to-Controller
(see Description of Arguments)
Command Query
Response to
Command
Response to
Query
Software Boot
From Image
SBS=
SBS?
1 byte, value of 1
or 2
Command or Query.
Sets or returns which bulk firmware image to boot from, in the form x, where:
1=Firmware is Image #1
2=Firmware is Image #2
EXAMPLE: <0/SBS=1 (selects Image 1 Firmware)
SBS=
SBS?
SBS*
SBS#
SBS=x
Current Software
Image
N/A
IMG?
1 byte, value of 1
or 2
Query only.
Returns the active software image in the form x, where:
1=Bulk Image #1 currently active
2=Bulk Image #2 currently active
N/A
IMG=x
Circuit ID String
CID=
CID?
4 to 32 bytes
Command or Query.
Sets or returns the user-defined Circuit ID string, selects 4 to 32 characters in length.
Valid characters include: [Space] ( ) * + – . / 0 thru 9 and A thru Z
CID=
CID?
CID*
CID#
CID=x
Date
DAY=
DAY?
6 bytes
Command or Query.
Sets or returns a date in the form ddmmyy (European format), where
dd=day of the month (01- 31)
mm=month (01-12)
yy=year (00-99)
EXAMPLE: <0/DAY=240457 (April 24, 2057)
DAY=
DAY?
DAY*
DAY#
DAY=ddmmyy
Time
TIM=
TIM?
6 bytes
Command or Query.
Sets or returns the time from midnight in the form hhmmss, where:
hh=hours (00-23)
mm=minutes (00-59)
ss=seconds (00-59)
EXAMPLE: <0/TIM=231259 (23 hours:12 minutes:59 seconds)
TIM=
TIM?
TIM*
TIM#
TIM=hhmmss
External
Frequency
Reference
EFR=
EFR?
1 byte, value of 0
thru 5
Command or Query.
Sets or returns the External Frequency Reference in the form x, where:
0=Internal 10MHz (DEFAULT)
1=External 1 MHz
2=External 2 MHz
3=External 5 MHz
4=External 10 MHz
5=Internal 10MHz plus output (this means that the Reference is available on the “J8 | EXT REF” rear panel connector
(connector LED indicates when ON).
EXAMPLE: <0/EFR=1 (selects External 1MHz)
EFR=
EFR?
EFR*
EFR#
EFR=x
Adjustment for
Internal 10MHz
High- stability
Reference
ADJ=
ADJ?
4 bytes
Command or Query.
Sets or returns fine adjustment of the Internal 10MHz Reference on the High-Stability Frequency Reference module in
the form sddd, where:
s=sign (+ or –)
ddd=value from 000 to 999.
ADJ=
ADJ?
ADJ*
ADJ#
ADJ=sddd