Hughes HX

Broadband VSAT technology - HUGHES HX

Resulting from the VSAT technology, the user network has a star or MESH topology, so it can be fully adapted in all cases to the network to be implemented by our partner. Star topology assures that disturbances at different points of the network do not affect the regular operation of the other network parts and assures this way the high availability. The Hughes HX system offers Multi-Star MESH and mobile functionality as well.

HUB

The central element of the Hughes HX system is the HUB, that establishes separate virtual transmission channels (backbone) with each remote terminal. The data traffic generated by the user ports of the terminals (VSAT) and the remote management data connections are multiplexed also into these channels. In case of star topology a backhaul connection is also the part of the telecommunication system which serves as a leased-line between the partner data communication center and Hungaro DigiTel’s premise. The data packets received from the remote sites through the satellite connection are routed to partner’s data center using this backhaul connection.

The HUB is modular, well scalable, so it can follow the changes in size of the client’s network. The central system, including the central 3.7 m antenna, offers 1:1 full redundancy to provide the highest availability.

Main parameters:

  • Frequency: „Ku”, „Ka” ,”C” or „Extended C” band;
  • Automated NMS, continuous (24 hours) network management;
  • High reliability
  • IP protocols: IPv4 and IPv6, Unicast and Multicast
  • Supplementary IP services: DHCP, NAT, PAT, VRRP,
  • Built-in TCP, HTTP/HTTPS acceleration and IP packet compression
  • Advanced routing capabilities (supported dinamic protocols: RIP, BGP4)
  • Advanced QoS support (CBR, CIR, Best Effort, IQoS, Fair Access Policy)

Forward Link (center – remote site):

  • Technology: TDMA, DVB-S2 + ACM (adaptive coding and modulation), MPEG-2 frame structure
  • Frequency: „Ku”, „Ka” ,”C” or „Extended C” band;
  • Modulation: QPSK, 8PSK, 16PSK (FEC: 1/2, 3/5, 2/3, 3/4, 5/6, 8/9, 9/10)
  • Error correction: Low Density Parity Check (LDPC)
  • Channel access: TDMA

Return link (remote site - center):

  • Technology: MF-TDMA (multi-frequency hopping time division multiple access)
  • Frequency: „Ku”, „Ka” ,”C” or „Extended C” band
  • Modulation: QPSK (FEC:1/2, 2/3, 4/5)
  • Error correction: Concatenated Bose-Chaudhuri-Hochquenghem (BCH)

VSAT (equipment installed at partner’s location):

  • Indoor unit
  • Antenna: 1.2m (optionally 0.96 - 2.4 m)
  • Transmitter: „Ku”, „Ka” ,”C” or „Extended C” band
  • LNB: 9,75 MHz (10 Mhz, 10.6 MHz)
  • Coaxial cable: 2xRG11, (20-150m)

Other supported functionalities:

  • Multicast
  • MESH
  • Multi-Star MESH
  • VoIP