User's Manual

30 kW S-BAND/U ANTENNA GROUP
FUNCTIONAL DESCRIPTION
3.10 Rev. C
Table 3.3.4 - Gate Array Output Signals
SIGNAL TO MEANING
XIRQ Microprocessor
IRQ Microprocessor Video Data Reception/Transmission Interrupt
CK10 Microprocessor 10 Mhz Clock
CS0 - CS5 Digital Potentiometers Digital Potentiometer Chip Select
U/D, INC Digital Potentiometers Digital Potentiometer Control Signals
SWFIL1 -
SWFIL3
LVPS Circuit Magnetron Filament Voltage Control Signals
FAN Unit Fans
Switching On Signal When The Temperature Is
Greater Than 40 °C
ANTS Power Supply Antenna Switching On Signal
HRM Power Supply Hour-Meter Switching On Signal
SPA, MPA,
LPA
Power Mos Board HVPS Circuit Control Signals
HVON Power Mos Board HVPS Circuit Switching On Signal
SWB1 -
SWB2
Nifb Assy Signals For The Control Of The NIFB Bands
TRPM
Performance Monitor
Circuit
Trigger For The Generation Of The Performance
Monitor Ring
TRPS Power Mos Board Trigger PUSH For The Transmission Pulse Generation
TRPL Power Mos Board Trigger PULL For The Transmission Pulse Generation
GSTC
On Board Level
Adapter
Gate For The STC Signal Generation
VDSTAN Display Unit Video Output Enabling
/VDSTAN Display Unit
Enabling For The Output Of The Video Combined With
The Digital Signals
RXCOMB Display Unit Serial Reception Of The Combined Video
TXCOMB Display Unit Serial Transmission Of The Combined Video
DISTX Display Unit
Enabling For The Combined Transmission On The
Video
3 .3 .3 .3 Pulse Lengt h Genera tor Funct ion
The Pulse Length Generator Function (Chapter 9, Figure 9.1.13) provides the
length of the pulse generated in accordance with the previous selections. In the
inputs to Pulse Length Generator are the following signals: TR (Internal
Trigger),BLANK, HVOK, MONOPULSE. The outputs from the PULSE
GENERATOR are: TRPS and TRPL.
Upon reception of the HVOK signal, and the incoming trigger, the PULSE
GENERATOR provides the GO signal. GO is an input signal in the Pulse
Length Generator. This Pulse Length Generator, receiving the information
relevant the Pulse Length forwards the Pulse according with the selected
length. The Comparator output is the signal TTL MONOPULSE, which is an
input in PAL as well. Receiving the MONOPULSE signal, TRPS and TRPL
signals are generated and trough the DRIVERS are forwarded to POWER MOS
Board, HVPS Area.