Datum Systems M7 Series - Page 107

M7/M7L/M7LT Modular Satellite Modem Maintenance
M7/M7L/M7LT - Rev. 0.05 3-51
Demodulator Parameters
Representation
Type
Entry
Description
Alarm Carrier Lock Mask
to Alarm A
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B,
4 = Mute CXR,
5 = Mute CXR & Alarm A,
6 = Mute CXR & Alarm B,
7 = Mute CXR & Alarm A &
B
Selects destination of alarm
Alarm Low Eb/No Mask
to Alarm B
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm
Alarm Low Eb/No Limit
5.00 dB
Numeric
0.50 to 19.99 dB
Sets the Eb/No threshold that will
raise an alarm.
Alarm Low Level Mask
to Alarm A
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm
Alarm Low Level Limit
-55.00 dBm
Numeric
-91.19 to -8.30 dBm
Sets the Rcv Level threshold that
will raise an alarm. Range is
variable based on the symbol
rate of the Rcv carrier.
Alarm Test Active Mask
To Alarm A
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm
Alarm Hardware Mask
to Alarm A
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm
»Alarm LNB Power Mask
to Alarm A
Selection
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm –
Only shown in M7LT
»Alarm LNB Current Max
300 mA
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm –
Only shown in M7LT
»Alarm LNB Current Min
150 mA
0 = None, 1 = to Alarm A,
2 = to Alarm B,
3 = to Alarm A & B
Selects destination of alarm –
Only shown in M7LT
Test IF Loopback
Disabled
Selection
0 = Disable, 1 = Enable
IF Loop-back control.
Test Total Occupied BW
3.413333 MHz
Read
Only
N/A
Displays modulated carrier
Occupied BW. This value will be
determined by the IF Filter Roll-
Off parameter setting.
Feature Bit Rate Limit
5.000000 Mbps
Read
Only
Shows the Bit Rate capability of
the modem
Feature Modulation
B/Q/OQ/8/PSK 8/16QAM
Read
Only
Shows the modulation capability
of the modem