Datum Systems M7 Series - Table 4-1 - Factory Default Parameters

Maintenance M7/M7L/M7LT Modular Satellite Modem
4-2 M7/M7L/M7LT - Rev. 0.05
4.2.2. Factory Default Parameters
New modems from the factory have default values placed into the non-volatile memory for operating
parameters. If a Monitor/Control System does not configure the modem automatically via remote
control, the modem can be easily configured from the front panel or through the HTTP interface using
a standard internet browser. To restore the factory default parameters the modem can be powered on
while depressing the “Clear” key. A modem can be returned to the factory default settings by using
the front panel command <Unit: Config - Recall>, then editing (or quick edit) and choosing the
“Factory” or “0” selection option.
The most common factory default parameters placed into the non-volatile memory are shown in Table
4-1.
Table 4-1 – Factory Default Parameters
Modulator:
Carrier Frequency = 70.00 MHz
Data Rate = 256 kbps
Modulation = QPSK
Code Rate = Rate 1/2
Differential Encoder = Enabled
Scrambler = Auto
Clock phase = Normal
Data = Normal
Clock Source = Internal
RTS = Ignore
Carrier = Off.
All Mod Alarms to Relay A
Demodulator:
Carrier Frequency = 70.00 MHz
Data Rate = 256 kbps
Modulation = QPSK
Code Rate = Rate 1/2
Differential Decoder = Enabled
Descrambler = Auto
Clock phase = Normal
Data = Normal
Clock Source = Receive
Sweep mode = Fast
Acquisition Range = +/- 30 kHz
All Demod Alarms to Relay B
Modem Unit:
Modem Reference: Internal, 10 MHz
Remote Port Address = 1
Remote Port = RS-232
Remote Mode = Binary Packet
Remote Rate = 9.6 kbps
Remote Data Format = 8 data bits, 1 stop,
no parity
Synchronous Serial Interface (if installed):
Mode = RS-449
All Tests Off
Data and Clocks in normal mode (not
inverted). The XMT Clock now uses a
default “Auto” mode that detects the
proper phasing and applies it.
4.2.3. Lamp-Test Mode
The modem provides a built–in Lamp-test mode which momentarily lights the display and the LED
indicators to verify they are functioning.
Access the “Lamp Test” Mode from the front panel parameter <Unit: Test - Modem>. Press “Edit” to
select the “Lamp Test” and press “Enter” to start the modem self-test.