Hughes HX200, Installation Manual

Page: 26 / 160

Chapter 2 • Assembling and connecting HX200 hardware
16
1038054-0001 Revision B
– This HX200 input signal is used to indicate the antenna
system has detected a mis-point
– The HX200 disables its transmitter within 45 milliseconds
after this signal transitions from -5 volts to +5 volts
– The HX200 enables its transmitter within 45 milliseconds
after this signal transitions from +5 volts to 15 volts
– This signal defaults to transmit enable in the absence of
external connection
•
HX200 demodulator lock indicator
– Output from the HX200 on serial port pin 15
– This HX200 output signal is used to indicate to the antenna
system the current status of the HX-200 demodulator
– Signal reaction time to demodulator lock state change -
nominally 20 milliseconds
– Demodulator lock is indicated by +5 volts
– Demodulator unlock is indicated by -5 volts
– +5V volts is output on this signal with SQF values from
31-99
– -5V volts is output on this signal with SQF values from
1-30
•
NMEA/GPS serial data interface
– Transmit data from the HX200 on pin 11
– Receive data to the HX200 on pin 12
– Signal ground on pin 13
Connecting the
hardware for stabilized
platforms
The hardware components for stabilized platforms can be
assembled in one of two configurations as shown in Figure 4 on
page 17 and Figure 5 on page 18. Select the correct configuration
for your site and assemble according to the following figures
based on whether a Seatel or Azimuth antenna is deployed with
the HX200.
Follow all installation and safety instructions in the Installation
and Operation Manual for Sea Tel Model DAC-2202 Antenna
Control Unit
(Document No. 126523, Revision D) or the A117 3