Datum Systems M7 Series, Инструкция по установке и эксплуатации

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Maintenance M7/M7L/M7LT Modular Satellite Modem
3-2 M7/M7L/M7LT - Rev. 0.05
Table 3-1 - Modem LED Indicators
Indicator Name Indicator Color Description
Power: Green Indicates the modem unit is currently under power.
Online Green/Off
Indicated that the modem is online. In 1:1 redundancy
configuration, (future option) this indicator will be lit green on the
on-line modem and the off on the modem that is off line.
Table 3-2 - Modulator LED Indicators
Indicator Name Indicator Color Description
Transmit: Green Indicates that the transmit output is currently active
Green Flashing
Indicates an IF Loopback test is active and the carrier is
configured to the “disabled” state.
Major Alarm: Red Indicates that the transmit direction has failed, losing traffic
Minor Alarm: Yellow Indicates a transmit warning condition exists.
Test: Yellow Flashing Indicates the modulator is involved in a current test mode activity
Table 3-3 - Demodulator LED Indicators
Indicator Name Indicator Color Description
Lock: Green
Indicates receiver lock to an incoming CXR and data including
FEC sync
Major Alarm: Red Indicates that the receive direction has failed, losing traffic.
Minor Alarm: Yellow
Indicates a receive warning condition exists, either an incoming
carrier with a low input level or a low E
b
/N
o
(programmable
threshold), or a backward alarm received from the far end
Test: Yellow Flashing Indicates the receiver is involved in a current test mode activity
3.2.2. Front Panel Keypad
The front panel keypad consists of three areas: First, is a 10-key numeric entry with 5 additional keys.
Two keys provide for a “+/-” (change sign) and “
.
” (decimal point) function, three provide “Edit”, “Clear”
and “Enter”, and four. The “Enter” key on the lower right is normally blue while the rest of the numeric
keypad keys are gray.
The second area is a set of “Arrow” or “Cursor” keys used to navigate the parameter currently being
monitored or controlled. During entry, the cursor keys allow moving a cursor to individual digits of a
numerical entry or scrolling through the available options of a selection entry. The arrow keys are also
in blue.
The third area is the four selection keys located below the LCD display. These buttons select which
functional area or “sheet” of the display matrix is currently in use and are discussed within the LCD
display section below.
3.2.3. Front Panel LCD Display
The LCD display is a single entry window into the large matrix of parameters which can be monitored
and set from the front panel. The front panel display is graphical 240 x 64 pixel LCD display. The
display is backlit and the brightness can be set for two states: Active and Idle. The active state is
entered whenever a key on the front panel is pressed and the display will automatically go to the idle
state after approximately 60 seconds of inactivity. Each state may be set to different levels of
brightness based on the preference of the operator. The default setting is
‘Backlight Full’ in the active
state and
‘Backlight 2’ in the idle state. To change the settings for either state go to the
<Unit:
Keyboard
– LCD Active>
or <Unit: Keyboard
– LCD Idle>
brightness parameter and adjust to the
desired values.