Configuring Versafec-2 Acm - Comtech EF Data CDM-570A Installation And Operation Manual

P.7.2

Configuring VersaFEC-2 ACM

Chapter 6. FRONT PANEL OPERATION
VersaFEC-2 ACM requires the plug-in Option Card , and the appropriate FAST
code for the maximum operating symbol rate.
Do these steps to configure the CDM-570A/570AL for VersaFEC-2 ACM operation from the
CDM-570A/570AL front panel:
Step
1 (SELECT) CONFIG: TI
Use the ◄ ► arrow keys to select a parameter. Press
ENTER to set the mode as V2-ACM..
2 (SELECT) CONFIG: TX  FEC
Use the ◄ ► arrow keys to select a parameter. Set the
Tx FEC type as:
•
•
3 (SELECT) CONFIG: TX  SYMB
Use the ◄ ► and ▲▼arrow keys to enter the desired
transmit symbol rate. Note that this is a fundamental
departure from the way in which the modem is typically
configured.
4 (SELECT) CONFIG: TX  POWER
se the ◄ ► arrow keys to select a parameter. Set the
Power as:
•
•
•
If Manual mode is selected, enter the desired transmit
output level. This will also be the Nominal Power value if
AUPC is selected.
If AUPC mode is selected without first selecting IP, IP-
ACM, or V2-ACM mode, this message appears:
Adaptive Coding and Modulation (ACM) Option
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Task
VF2L (VersaFEC-2 Long Block), or
VF2S (VersaFEC-2 Short Block)
The Transmit symbol rate is limited by the ACM FAST code installed. There are five
options:
• 37 ksps to 375 ksps
• 37 ksps to 750 ksps
• 37 ksps to 1500 ksps
• 37 ksps to 2000 ksps
• 37 ksps to 3000 ksps
Manual
AUPC
CnC-APC
Front Panel VFD Mnemonic
Data Intf: RS422 IP V.35
RS232 G703 IP-ACM V2-ACM
TxFEC: Vit Vit-RS TCM-RS
TPC VF ULL VF2L VF2S Unc
TxSymRate:
00031.139kbps(◄ ►,▲ ▼,ENT)
Output Power Level Mode:
Manual
Warning! AUPC needs
Framed Mode or ACM Mode
P–13
Revision 5
00031.139kbps
AUPC CnC-APC
MN-CDM570A