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Hughes HX260 Broadband
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Hughes HX260 Broadband
Hughes HX260
The HX260 is a high performance satellite router designed to support dynamically assigned high-bandwidth IP connectivity in simultaneous mesh and star operation. The HX260 satellite router provides high QoS (Quality of service) features including Adaptive Constant Bit Rate (CBR) bandwidth assignment that delivers high quality low jitter bandwidth for real-time traffic such as VoIP (Voice over IP) or videoconferencing. With integrated IP features including RIPv1, RIPv2, BGP, DHCP, NAT/PAT, and DNS Server/Relay functionality, together with a high-performance satellite modem, the HX260 is the ideal platform for supporting mesh and star broadband IP connectivity. In addition, with the ability to support simultaneous mesh and star operation, the HX260 is ideal for such applications as VoIP services where simultaneous mesh connections are required on a per call basis and, at the same time, continuous Internet access is demanded.
Target Markets
Star/mesh voice/data broadband IP connections
GSM backhaul, SCPC/MCPC replacement links
MPLS extension services
Embassy and government networks
Air traffic control
Private leased line services
System Architecture
The HX System is a DVB-S2 ACM/IPoS with Adaptive Coding
Modulation (ACM) system consisting of a central Gateway
connecting to multiple HX remote terminals. The outbound
channel from the central Gateway, which utilizes DVB-S2/ACM, is
continuously received by every HX remote terminal in the system—
this reception is independent of a mesh connections between
remote terminals. The TDMA channels of the HX System are highly
effi cient and are based on the industry standard leading IPoS. The
connectivity from a remote terminal to either the HX Gateway or
other HX260 terminals is through the TDMA channels.
Efficiency and flexibility in utilizing satellite bandwidth are at
the core of the HX260 design. Each TDMA link, whether in star
or mesh mode, can be confi gured to provide QoS tailored for
the requirements of each link. This includes such capabilities
as defi ning a minimum, guaranteed and maximum Committed
Information Rate (CIR), CBR (Adaptive and On-Demand) and Best
Effort, thereby allowing service providers to develop a service
tailored to its customers’ specific requirements. In addition, the
HX System bandwidth allocation scheme uses an Aloha channel
for initial traffic requests (and only the initial traffic request),
which means that remotes are able to release all TDMA channel
assignments when they are idle. This frees up unused bandwidth
and allows an operator to make more efficient use of space segment
resources.
HX260 Benefits
Simultaneous star/mesh capability
Single-hop telephony orvideoconferencing
Support for distributed star networks
Hughes HX260 Features
On-demand constant bit rate (CBR) services
Adaptive CBR with Min, Max, and user-definable step sizes
CIR with Min, Guaranteed, and Max rates
Backlog-based dynamic stream with weighted fair queuing
Class-based weighted prioritization
Multicast data delivery
Four levels of IP traffic prioritization
Bandwidth allocation
Supports both pre-assigned (static) and dynamic traffic assignment
Idle remotes can be configured to release all network resources
Static and dynamic addressing
DHCP server or relay
DNS caching
Multicasts to and from the LAN by using IGMPSupp
VRRP
VLAN tagging
Firewall support through integrated access control lists
Supports unicast and multicast IP traffic
Implements dynamic, self-tuning Performance Enhancement Proxy (PEP) software to accelerate the throughput performance by optimizing the TCP transmission over the satellite, delivering superior user experience and link efficiency
Mesh connections are supported for TCP and UDP traffic
Bi-directional data compression
Configuration, status monitoring, and commissioning via the HX Gateway
Embedded Web interface for local status and troubleshooting
Software and configuration updates via download from the HX Gateway
User-friendly LED display indicating terminal operational status
Technical Specifications
Physical Interfaces
Two 10/100BaseT Ethernet LAN RJ-45 ports
Satellite & Antenna Specifications
DVB-S2 ACM Channel DVB-S2 with Adaptive Coding and
DVB-S2 ACM Rate 1–45 Msps (in 1 Msps steps)
DVB-S2 ACM Modulation QPSK, 8PSK (Adaptive Modulation)
DVB-S2 ACM Coding BCH with LDPC 3/5, 1/2, 2/3, 3/4,
5/6, 8/9, 9/10 (Adaptive Coding)
TDMA (IPoS) Channel Rate 256, 512, 1024, 2048 ksps
TDMA (IPoS)Channel Coding Rate 1/2, 2/3, 4/5 with TurboCode
Channel Coding (Adaptive Coding)
Bit Error Rate (Receive) 10-10 or better
Bit Error Rate (Transmit) 10-7 or better
Interface to ODU Industry standard BUC (L-Band) or
Hughes proprietary BUC
HX260 Mechanical & Environmental:
W1U rack mount unit for 19” rack
Weight (IDU) 6 lbs
Dimensions 19”W x 1.75”H x 14”D
Operating Temperature: +32° F (0 C) to 122° F (+50C)
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