Config: Rx) E /N; Config: Rx) Α (Rx Alpha Filter Rolloff Factor); Config: Cex (G.703 Clock Extension) - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Front Panel Operation
6.3.2.4.10 (CONFIG: Rx) E
Eb/No Alarm Point:
02.0 dB (◄ ►,▲ ▼,ENTER)
You may define an alarm point value where, if the E
generates a receive traffic fault.
The valid range of values is from 0.1 to 16.0 dB.
To edit the E /N
b
▲▼arrow keys to change that digit. Press ENTER.
6.3.2.4.11 (Config: Rx) α (Rx Alpha Filter Rolloff Factor)
Rxα: .35 .12
◄ ►
Use the arrow keys to select an Rx Alpha Filter Rolloff Factor (Rxα) of .35 or .12. Press
ENTER.
• .35 is the default Rx Alpha Filter Rolloff Factor (Rxα).
•
Set the Rxα to .35 when the Txα of the received signal is 0.25 or 0.35.
• Set the Rxα to .12 when the Txα of the received signal is .05, .10, .15, or .20.
• When operating in CDM-570 Compatible Mode, the Rxα is fixed to the default
value of .35. Selection of this feature and its options becomes disabled and
unavailable. See Sect. 6.2 for further information.
6.3.2.5

CONFIG: CEx (G.703 Clock Extension)

G703 Clock Extend: None
TxLock RxEnable (◄ ►,ENT)
◄ ►
Use the arrow keys to select None, TxLock, or RxEnable. Press ENTER. When you select
TxLock or RxEnable, the modem displays the following submenu:
Clk Extend Interface: T1
E1Bal E1Unbal (◄ ►,ENTER)
◄ ►
Use the arrow keys to select T1, E1Bal, or E1Unbal as the G.703 Clock Extension interface.
Press ENTER.
/N
b 0
◄ ►
Alarm Point, use the
0
(◄ ►,ENT)
/N falls below this value, the modem
b 0
arrow keys to select a digit, and then use the
6–30
MN-CDM570A
Revision 3