7
Figure 12. Transmitter status page
•
RF Level
The transmitter has a built-in RF power meter, which monitors the total power in the RF test point. This value directly relates to the laser optical modulation
index (OMI). It depends on input signals values and number of channels and can be changed by the attenuator.
If RF output power is less than -20 dBm, web server generates error message “Low RF level”, if it is more than -5 dBm, then the message” High RF
level” is displayed.
Note
: measurement of RF output level has not instrument accuracy, it indicates the approximate output level power and output level variation.
•
Laser 1 current
Indicates current of Laser 1;
•
Laser 2 current (for transmitter mo428L)
Indicates current of Laser 2;
•
Bus Voltage
Displays supply voltage of device on power distribution bus or on +12 V powering input (Figure 1, Pos. 9)
•
Internal voltage
Indicates voltage of internal 5V supply
•
“RF in” DC voltage
Displays the level of output voltage in the RF input socket (Figure 1, Pos. 1)
This voltage is used to power an external amplifier. In case of short circuit, or over current the voltage drops, and error message “Voltage out of range”
is displayed in the error message field.
•
Temperature
Indicates the internal temperature of the device. If the temperature inside the module achieves the maximum level, the error message “Overheat” is
displayed.
In case the transmitter data bus is connected to an external power supply UP412, additional information about power supply parameters is displayed.
External supply 1 UP412:
•
Voltage
Displays the output voltage of power supply No1;
•
Current
Displays the current consumption of power supply No1;
•
Temperature
Displays the temperature inside the power supply No1.
External supply 2 UP412 :
•
Voltage
Displays the output voltage of power supply No 2;
•
Current
Displays the current consumption of power supply No 2;
•
Temperature
Displays the temperature inside the power supply No 2.
Transmitter maintenance
System maintenance page (Figure 13) allows the restart and/or restore all default settings of device.
All operations will be executed by pressing the “Execute” button.
