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4.2.7.5. Telecommanding
The information is given for the TCU # 1 component, it is identical for the TCU # 2 component. In this case, the
path to the database is as follows:
Registry path: HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Tcu2
4.2.7.5.1. Transmission of the Un-modulated TC Sub-carrier
To modify the duration of transmission of the un-modulated BPSK sub-carrier by the TCU (applies only to BPSK
modulation):
Registry path:
Keyword:
Default setting at delivery:
Enter 0 (immediate sub-carrier modulation) or a positive, whole number of bits. Example: for 1-second pre-
transmission, enter 1000 if the TC bit rate is 1000 bps)
4.2.7.5.2. CMM Data Format
To modify the CMM data format for TC/TM loop verification (CMM1 & 2 flags, mask and expected value):
Registry path:
Keyword:
Default setting at delivery:
Enter 0 (8-bit data, LSB aligned) or 1 (32-bit data, MSB aligned)
4.2.7.5.3. "Group" Instruction Size
To modify the maximum number of TC requests/instructions in a « Group » instruction:
Registry path:
Keyword:
Default setting at delivery:
Enter any value between 32 and 500 (in decimal) or between 20 and 1F4 (in hexadecimal).
4.2.7.5.4. TC Watchdog
To Enable/Disable the TC watchdog mechanism, allows to automatically close the connections to the TC port
and drop the IF carrier.
Registry path:
Keyword:
Default setting at delivery:
Enter 0 to inhibit the TC watchdog; enter any positive value to activate it.
© Safran Data Systems
COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Tcu
SendScf
0
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Tcu
CmmOption
0 (8-bit data)
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Tcu
BufferNbr
32 (requests or instructions)
HKEY_LOCAL_MACHINE\SOFTWARE\In-snec\CortexCRT\SetDefault\Preferences\Tcu
Watchdog
0 (disable)
This document is the property of
It cannot be duplicated or distributed without expressed written consent.
Safran Data Systems
.
Ref.
DTU 100042
Is.Rev.
5.17
Date:
Dec.
03, 2021Sept. 30, 2021
Page 245
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