Hughes HX System, System Overview

Page: 89 / 106

Appendix A • Technical specifications
1037852-0001 Revision A
77
Appendix A
Technical specifications
This appendix discusses the following topics:
•
HX gateway specifications on page 77
•
HX50/100 satellite router mechanical and environmental
specifications
on page 78
•
HX150 satellite router specifications on page 79
HX gateway
specifications
Listed below are technical specifications for the HX gateway.
This information includes: outbound and inbound channels, size
and scalability, security, network management, and satellite
routers supported in the HX gateway.
HX gateway technical specifications
Outbound channel
DVB-S2 compliant
Frequency: C-, Extended C-, Ku-, Extended Ku-, Ka-band
Modulation: QPSK/8PSK
Symbol Rates: 1-45 Msps (in steps of 1 Msps)
Encoding DVB-S2: Convolutional with concatenated Reed Solomon;
Viterbi 7/8, 5/6, 3/4, 2/3, or 1/2
Encoding DVB-S2: BCH with LDPC 3/5, 2/3, 3/4, 5/6, 8/9, or 9/10
(8PSK); 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (QPSK)
Bit Error Rate: 10
-10
or better
Inbound channel
FDMA/TDMA
Transmit modulation: OQPSK
Transmit encoding: Rate 1/2, 2/3, 4/5 TurboCode
Transmit bit rates: 256 kbps–3.2 Mbps
Size and Scalability
Base Configuration:
– Single 26U rack (GTWY)
– Supports up to 500 modems
– Supports up to 9 inbound channels or total inbound aggregate
bandwidth of 3.6 Mbps
– Expansion capable via additional equipment rack