7 config: tx ( symb (ip-acm or v2-acm modes only), 8 config: tx ( scrambler, Config: tx tx data tx sub-mux – Comtech EF Data CDM-625A User Manual
Page 147: 7 config: tx symb (ip-acm or v2-acm modes only), 8 config: tx scrambler
CDM-625A Advanced Satellite Modem
MN-CDM625A
Front Panel Operation
Revision 3
6–21
CONFIG: Tx Tx Data Tx Sub-Mux
Tx Sub-Mux = Off (Off, On)
Ratio = 1/9 (IP/Synchronous) ()
Use the
▲▼
arrow keys to select the desired ratio. Press ENTER. There are a total of 34 ratio
selections available:
► 1/59
► 1/39
► 1/19
► 1/9
► 1/8
► 1/7
► 1/6
► 1/5
► 1/4
► 2/7
► 1/3
► 2/5
► 3/7
► 1/2
► 3/5
► 2/3
► 3/4
► 4/5
► 1/1
► 5/4
► 4/3
► 3/2
► 5/3
► 2/1
► 7/3
► 5/2
► 3/1
► 7/2
► 4/1
► 5/1
► 6/1
► 7/1
► 8/1
► 9/1
6.2.1.3.7 CONFIG: Tx Symb (IP-ACM or V2-ACM Modes Only)
Appendix M. ADAPTIVE CODING AND MODULATION (ACM)
VersaFEC ACM or VerseFEC-2 ACM modes require the appropriate FAST codes for the
maximum operating symbol rate.
TxSymbolRate = 01000.000 ksps (ACM Mode)
Data Invert=Off Clock Invert=Off ()
It is important that you understand that the use of IP-ACM or V2-ACM modes represent
fundamental departures from the way you would typically configure the modem. When either
ACM mode is active, the CONFIG: Tx menu changes the Data option to Symb.
Use the
◄ ►
arrow keys to select TxSymbolRate, Data Invert, or Clock Invert. Press ENTER.
On the top line – Edit the Tx Symbol Rate by using the
◄ ►
arrow keys to select the digit to edit.
Then, use the
▲▼
arrow keys to change that digit. Press ENTER.
On the bottom line – Set the Data Invert or Clock Invert operations by using the
▲▼
arrow
keys to select either as On or Off. Press ENTER.
6.2.1.3.8 CONFIG: Tx Scrambler
Tx Scrambler = IESS (Normal,IESS,Off)
IESS-315 V.35 Scrambler
()
Use the
▲▼
arrow keys to select Normal, IESS, or Off. Press ENTER.