Comtech EF Data CDM-570A - Manual (Page 134)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Front Panel Operation Revision 2
6–30
6.3.2.4.10 (CONFIG: Rx) E
b
/N
0
Eb/No Alarm Point:
02.0 dB (◄ ►,▲ ▼,ENTER)
You may define an alarm point value where, if the E
b
/N
0
falls below this value, the modem
generates a receive traffic fault.
The valid range of values is from 0.1 to 16.0 dB.
To edit the E
b
/N
0
Alarm Point, use the ◄ ► arrow keys to select a digit, and then use the
▲▼arrow keys to change that digit. Press ENTER.
6.3.2.4.11 (Config: Rx) α (Rx Alpha Filter Rolloff Factor)
Rxα: .35 .12
(◄ ►,ENT)
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.