Cross Technologies 2016-25-01, Инструкция по эксплуатации

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2.3 Front Panel Controls and Indicators - The following are the front panel controls and indicators.
MENU
EXECUTE
F=2250.000 G=+10.0
REMOTE POWER
LCD DISPLAY
Display shows frequency in MHz and
Gain in dB, and is used to change
settings in Program mode.
S1 - MENU/EXECUTE BUTTON
Press this to get into Program mode
and to execute any changes.
DS6 - POWER LED
Green LED indicates
presence of DC power. DS1 - REMOTE LED
Yellow LED indicates
remote operation.
S2 - VERT. TOGGLE
Vertical toggle switch that controls
values in the Menu items when in
program mode. Does not function in
the normal display mode S3 - HORIZ. TOGGLE
Horizontal toggle switch that
controls which values are being
adjusted. Does not function in the
normal display mode
ALARM
DS3 - ALARM LED
Red LED indicates
downconverter alarm.
IF MONITOR RF MONITOR
IF MONITOR
-20db IF Monitor Port RF MONITOR
-20db RF Monitor Port
FIGURE 2.3 2016-25-01 Front Panel Controls and Indicators
2.4 Auto 10 MHz Reference Mode
When the frequency converter’s reference mode is set to AUTO it will lock to an external reference and
automatically switch to the internal reference if both PLL circuits become unlocked. Once the converter
switches to the internal reference it will remain there until the “Reference Fault” state is cleared. The reference
fault state is displayed on the front panel and is reported via the “{S2}” M&C status query. Converters with the
Ethernet M&C option will also report the reference fault via the web browser interface. Converters with the
Et SNMP option will also report the reference fault via an SNMP object in its MIB.
When the reference fault state is cleared the converter will attempt to lock to the external reference.
The reference fault state can be cleared via the front panel or via remote M&C commands.
These methods are described below.
Front Panel Method
Navigate to the reference mode select menu. Any activity on the front panel up or down switches will
clear the reference fault.
Remote M&C Method
Send the command “{CF}” to clear the reference fault state.
Web Browser Interface Method
Click on the “Clear Fault” button near the bottom of the web page.
SNMP Method
Issue a SET command with a value of 0 to the reference fault object in the MIB.
2016-25-01 Manual _Rev A Page 11 3/26/09