Datum Systems PSM-500 - Page 5

PSM-500/500L/500LT SCPC Satellite Modem Table of Contents
PSM-500/500L/500LT - Rev. 0.91
iii
2.6 Modem Terminal Mode Control ........................................................................................... 2-13
2.7 Self-Test Mode ..................................................................................................................... 2-14
2.8 IF Loop-back Test Mode ...................................................................................................... 2-14
2.8.1 Built-in BERT .............................................................................................................. 2-14
2.9 Modem Configuration ........................................................................................................... 2-15
2.9.0 Configuring the Modem for Operation ........................................................................ 2-15
2.9.1 Setting Essential Parameters ..................................................................................... 2-15
Modulator and Demodulator ..................................................................................... 2-15
Modulator .................................................................................................................. 2-15
Demodulator ............................................................................................................. 2-15
2.9.1.1 IBS Multiplexer and Reed-Solomon Selection ................................................... 2-16
2.9.1.2 Using The Proper Scrambler ............................................................................ 2-16
IESS-308 Scrambler Mode Operation ...................................................................... 2-16
IESS-309 Scrambler Mode Operation ...................................................................... 2-16
Fixed Scrambler Mode Operation ............................................................................ 2-16
Alternate Scrambler Mode Operation ....................................................................... 2-16
2.9.1.3 Using The L-Band PSM-500L Transmit RF Frequency Feature ...................... 2-16
2.9.1.4 Using The L-Band & L Receive RF Frequency Feature .................................. 2-17
2.9.2 Carrier Acquisition Parameters .................................................................................. 2-17
2.9.2.1 Initial Acquisition ............................................................................................... 2-18
2.9.2.2 Carrier Re-acquisition ....................................................................................... 2-18
2.9.3 Sample Configuration Setting ..................................................................................... 2-19
2.9.4 Setting Additional Parameters .................................................................................... 2-20
2.9.4.1 Data Interface Compatibility ....................................................................... 2-20
2.9.4.2 Automatic Correction .................................................................................. 2-20
2.9.4.3 Alarm configuration ..................................................................................... 2-20
Figure 2-3 - Alarm Processing .................................................................................. 2-21
2.9.5 Using the Internal or an External Reference .............................................................. 2-22
2.9.5.1 Reference Calibration .............................................................................................. 2-22
2.9.6 Setting the Modem Station ID Name .......................................................................... 2-23
2.9.7 Setting the Modem Address for Command Mode Operation ..................................... 2-24
2.10 Interface Type Configuration .............................................................................................. 2-24
2.10.1 Adding or Changing the Optional Interface Type ..................................................... 2-24
2.11 Option FEC Card Installation ............................................................................................. 2-25
2.11.1 Turbo Product Codes Option Installation ................................................................. 2-26