Datum Systems PSM-500L - Page 79

PSM-500/500L/500LT SCPC Satellite Modem Operation
PSM-500/500L/500LT - Rev. 0.91
Page 3-19
Modulator Parameter Detail
Representation
Type
Entry
Description
Alarm Carrier
To Alarm A
Selection 0 = Mute CXR,
1 = Mute & Alarm A,
2 = Mute & Alarm B,
3 = Mute & Alarm A & B
Selects destination of alarm
Alarm Data
To Alarm A
Selection 0=None, 1=A, 2=B,
3=A & B
Selects destination of alarm
Alarm Clock
To Alarm A
Selection 0=None, 1=A, 2=B,
3=A & B, 4=Send All ones.
5 = All ones & A
6 = All ones & B
7 = All ones & A & B
8 = Mute Mod Cxr
9 = Mute & A
Selects destination of alarm
Alarm AUPC
To Alarm A
Selection 0=None, 1=A, 2=B,
3=A & B
Selects destination of alarm
Alarm Tst Active
To Alarm A
Selection 0=None, 1=A, 2=B,
3=A & B
Selects destination of alarm
Alarm Hardware
To Alarm A & B
Selection 0 = Mute CXR,
1 = Mute & Alarm A,
2 = Mute & Alarm B,
3 = Mute & Alarm A & B
Selects destination of alarm
Alarm BUC Power
Mute & Alarm A
Selection 0=None, 1=A, 2=B, 3=A&B,
4 = Mute CXR,
5 = Mute & Alarm A,
6 = Mute & Alarm B,
7 = Mute & Alarm A & B
Selects destination of alarm
Test Modulation
Normal
Selection 0 = Normal,
1 = Pure Carrier,
2 = Alt 1/0
3 = Sideband
Carrier output mode for test
purposes.
Test Symbol Rate
256.000ksps
Read Only N/A Computed Transmit Symbol
Rate
Test Clock Error
251
Read Only N/A Bit Rate Clock error
Test CXR ALC
+3.0V
Read Only N/A Internal Loop Voltage
Test LO AFC
+9.1V
Read Only N/A Internal Loop Voltage
Test Step AFC
+9.5V
Read Only N/A Internal Loop Voltage