Comtech EF Data DMD2401/DMD2401L - Manual (Page 41)

User Interfaces DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
4-2 TM065 – Rev. 3.3
4.1.2 Front Panel LED Indicators
Eight LEDs on the DMD2401 front panel (Refer to Table 4-2) indicate the status of the
DMD2401’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
Modem LED Indicators
Power Green Indicates that the unit is turned on.
Fault Red Indicates a hardware fault for the unit.
Event Yellow Indicates that a condition or event has occurred that the
modem has stored in memory. The events may be viewed
from the Front Panel or in the Terminal Mode.
Remote Green Indicates that the unit is set to respond to the remote control
input.
Modulator LED Indicators
Transmit On Green Indicates that the Transmit Output is currently active.
Major Alarm Red Indicates that the Transmit Direction has failed, losing traffic.
Minor Alarm Yellow Indicates that a warning condition exists.
Test Mode Yellow Indicates that the modulator is involved in a current Test
Mode activity.
Demodulator LED Indicators
Signal Lock Green Indicates that the receiver locked to an incoming signal,
including FEC Sync.
Major Alarm Red Indicates that the Receive Direction has failed, losing traffic.
Minor Alarm Yellow Indicates that a Receive Warning Condition exists.
Test Mode Yellow Indicates that the receiver is involved in a current Test Mode
activity.
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 (
n ), ( p ), ( o ),
( m ), used to navigate the parameter currently being monitored or controlled. Table 4-3 describes
the key functions available at the front panel.