4 monitor main menu and parameters, 3 general (menu) – Comtech EF Data DMD-2050E User Manual
Page 136
DMD2050E Universal Satellite Modem
User Interfaces
MN-DMD2050E Revision 2
4–24
4.4.3.3
GENERAL (menu)
GENERAL MENU
EXT FREQ (MHz) {Variable Through Data Rate}
Select the external clock frequency in MHz.
REF FREQ SRC
{EXTERNAL, HIGH STABILITY} Select the Frequency Reference Source.
REF FREQ (MHz)
Select the reference clock frequency in MHz.
BB RELAYS
{IBS ALMs, IBS/MNR ALMs,
IBS/MNR/MJR ALM,
RTS ALARM, CnC Switch}
IBS ALMs: Only supports IBS prompt and service alarms.
Note: The following menus are only supported in closed
network:
CnC 1:1 SWITCH: Supports bypassing certain CnC faults
when modem in 1:1 redundancy configuration.
IBS/MNR ALMs: Only supports IBS prompt and service
alarms and minor alarms
IBS/MNR/MJR ALM: Only supports IBS prompt and service
alarms, minor and major alarms.
RTS ALARM: Allows contact closures to be activated when
the carrier is configured for RTS signaling. Refer to Radyne
App Note 230 for addition information on utilizing this feature
as Keyline Operation.
CnC Switch: Available only when CnC option is installed
with CnC hardware, allows user to bypass the alarms
associated with a non cancelled carrier when in a redundant
configuration.
4.4.4 MONITOR Main Menu and Parameters
MONITOR MENU
EVENTS
Displays a history of events recorded in the event buffer. A maximum of 100
events may be stored in the buffer. Upon receipt of the 101
st
event, the first
received event is automatically deleted, and so on, maintaining the maximum
100 events.
ERASE EVENTS.. PRESS CLEAR Press CLEAR to clear the contents of the Event Buffer.
INPUT LVL (dBm)
Displays the estimated receive signal level as seen by the Demodulator.
FREQ OFFSET (Hz)
Displays the received carrier frequency offset as measured by the modem.
AGC VOLATAGE (V)
Monitored AGC Value for use in external equipment, such as Radios.
EBNO (dB)
Displays the estimated E
b
/N
o
as seen by the demodulator.
ESNO (dB)
Available when the demodulator is in EBEM Mode: Displays the estimated
E
s
/N
o
as seen by the demodulator.