Operating instructions

User Interfaces DVB3030/DVB3030L Digital Video Broadcast Modulator
4-2 TM052 - Rev. 3.5
information. The upper area shows the current parameter being monitored, such as ‘Frequency’
or ‘Data Rate’. The lower line shows the current value of that parameter. The LCD display is a
single entry window into the large matrix of parameters that can be monitored and set from the
front panel.
4.1.2 Front Panel LED Indicators
Eight LEDs on the DVB3030 front panel (Refer to Table 4-2) indicate the status of the
DVB3030’s operation. The LED colors maintain a consistent meaning. Green signifies that the
indication is appropriate for normal operation, Yellow means that there is a condition not proper
for normal operation, and Red indicates a fault condition that will result in lost communications.
Table 4-2.
LED Color Function
Transmit On Green Indicates the DVB Transmitter is turned on.
Major Alarm Red Indicates that the transmit direction has failed, losing traffic.
Minor Alarm Yellow Indicates a transmit warning condition exists.
Test Mode Yellow Indicates the modulator is involved in a current test mode
activity.
Power Green Indicates the DVB3030 unit is currently powered up.
Fault Red Indicates a memory failure or power out of spec.
Event Yellow Indicates that a new event has been logged into the event
buffer.
Remote Green Indicates that the unit is set to respond to the remote control
or terminal input.
4.1.3 Front Panel Keypad
The front panel keypad consists of two areas: a 10-key numeric entry with 2 additional keys for
the ‘Enter’ and ‘Clear’ function. The second area is a set of ‘Arrow’ or ‘Cursor’ keys (↑↑), (↓↓), (→→),
(←←), used to navigate the parameter currently being monitored or controlled. Table 4-3
describes the key functions available at the front panel.
4.1.4 Parameter Setup
The four arrow keys (↑↑), (↓↓), (→→), (←←), to the right of the LCD display are used to navigate the
menu tree and select the parameter to be set. After arriving at a parameter that needs to be
modified, depress <ENTER>. The first space of the modifiable parameter highlights (blinks) and
is ready for a new parameter to be entered. After entering the new parameter using the keypad
(Refer to Figure 4-3), depress <ENTER> to lock in the new parameter. If a change needs to be
made prior to pressing <ENTER>, depress <CLEAR> and the display defaults back to the
original parameter. Depress <ENTER> again and re-enter the new parameters followed by
<ENTER>.
Following a valid input, the DVB3030 will place the new setting into the nonvolatile EEPROM
making it available immediately and is available the next time the unit is powered-up.