HughesNet Satellite Modem :

The HughesNet Model DW6000, DW7000, or HN7000S modem supplies DC power to the LNB and the transmitter. It also transmits the inroute signal and receives the outroute signal. Both outroute (received) and inroute (transmitted) signals operate at L-band, between the modem and the outdoor electronics. The numbers in the illustration above indicate the order in which the lights come on, after a normal power reset. The DW6000 can no longer be commissioned.

The HughesNet Satellite Modem Lights
The lights on the HughesNet satellite modems provide you with status information. Which lights are on or off can help you pinpoint a problem, when it occurs.

Following is a description of each light's state (from top to bottom), when the terminal is powered on and transmitting or receiving data:

- The LAN LED is on and blinks intermittently as frames are transmitted or received.
- The Transmit LED is on and blinks intermittently as frames are transmitted.
- The Receive LED is on and blinks intermittently as frames are received.
- The System LED is on.
- The Power LED is on.

Meaning of LEDs on Front of Modem
LAN : Solid blue LAN is connected and usable; Flashing blue There is transmit or receive activity on the LAN.

TRANSMIT : Solid blue= OK ; Flashing blue=Transmitting frames; Off Some condition is preventing transmission.

RECEIVE : Solid blue= OK ; Flashing blue=Receiving frames ; Off= Some condition is preventing acquisition of outroute (preventing receipt).

SYSTEM : Solid blue (DW7000)=System is operating normally ; Flashing blue (DW7700)= System is operating normally with DVA enabled ; Off= Some condition is preventing full operation.

POWER : Solid blue= Power is on and unit is functioning normally ; Blinking blue = Unit is operating with the fallback.bin (backup) version of software ; Off = There is no power ; Off with another LED flashing= This indicates a fatal error ; Off with all other LEDs flashing in unison= This indicates an unrecoverable key error.

Note:
If the power LED blinks, the terminal is operating with a backup version of software referred to as the fallback.bin . This usually happens when the unit is first installed. The unit may operate with the fallback.bin, if the primary version of software, referred to as the main.bin , does not successfully load. If this occurs, power cycle the unit by disconnecting the power cord from the power source, wait 10 seconds, and then reconnect power.

Source : Satellite Mobility Support Network (SMSN) HughesNet User Guide

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The graphic shows how the remote terminal or VSAT fits into the HughesNet system architecture. Let's start by clearly defining what is meant by VSAT:

VSAT -- Per Webopedia.com (http://www.webopedia.com/): VSAT is Short for Very Small Aperture Terminal. A VSAT is an earthbound station used in satellite communications for data, voice and video signals, excluding broadcast television. A VSAT consists of two major parts, as follows:

A transceiver - This is placed outdoors in direct line of sight to the satellite. It is part of the Feed Arm attached to the dish.

A device that is placed indoors, to interface the transceiver with the end user's device. This is your HughesNet satellite modem.

The transceiver receives and sends signals, to a satellite transponder in the sky. The satellite transponder receives and sends signals, to a ground station computer located at the HughesNet NOC (Network Operations Center).

Each end user is interconnected with another computer at the NOC, via the satellite, forming a star topology. It is also called the Hub and Spokes topology. The computer at the NOC (the Hub ) controls the entire operation, for its portion of the network. For one end user to communicate with another, the transmission has to first go to the Hub, which then retransmits it (via the satellite) to the other end user's VSAT.

Pointing the Antenna :

The antenna uses a three axis pointing system, which you will adjust, after you move:

Azimuth - This is the magnetic compass direction (angle of sighting) at which you point the dish. It is a side-to-side adjustment.

Elevation. - This is the angle above the horizon, at which you point the dish. This is an up-and-down adjustment.

Polarization - The polarization or skew is set after each move. This is a rotational adjustment


HughesNet System Components

The figure above illustrates the four major components of a HughesNet VSAT system:

The Outdoor Unit (ODU) - This comprises the antenna and the feed arm, which has the receiver and transmitter.

The Indoor Unit (IDU) - This is the HughesNet Model DW6000, DW7000, or HN7000S satellite modem.

The Interfacility Link (IFL) Cables - The cables connect the IDU to the ODU.

The Software - This is contained in the firmware of the satellite modem

Satellite Mobility Support Network (SMSN) HughesNet User Guide

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