Table of Contents
Advertisement
Installation
Once all parameters have been set and verified, the transmit output can be connected to the
ground station equipment for transmission to the satellite. Verify that the alarms are extinguished
and that the demodulator has locked.
2.9.4 Setting Additional Parameters
As stated before, the basic parameter settings are essential to achieve modem operation and
carrier lock. There are many other parameters, which must be set on the PSM-500 to configure
the unit to operate within your own system. These include setting those parameters which fall into
three major categories; Data Interface compatibility; Automatic Correction for link properties; and
Alarm configuration.
2.9.4.1 Data Interface Compatibility
Mod and Demod Data Sense
Mod and Demod Clock Source
Mod and Demod Clock Phase (Default Mod Clock is now "Auto").
Modulator RTS Enable
2.9.4.2 Automatic Correction
Automatic Uplink Power Control (if equipped)
Demod FIFO Operation
2.9.4.3 Alarm configuration
The PSM-500 Alarm system represents a sophisticated method of controlling visual, relay and
logical alarm outputs which can be used for multiple purposes including redundancy. A basic
representation of the alarm system functioning is shown in the figure below.
Page 2-20
PSM-500/500L/500LT SCPC Satellite Modem
PSM-500/500L/500L T- Rev. 0.91
Advertisement
Table of Contents
