Vadb - Hughes HN7000S User Manual

• Serial port – Enables you to connect the terminal to a serial
device such as a point of sale (POS) terminal, credit
verification device, or automated teller machine (ATM).
• Dual Ethernet ports – Provides the ability to connect two
Ethernet devices to the terminal. Supported devices include
PCs equipped with network interface cards (NICs), hubs,
routers, switches, the Hughes Voice Appliance, and Hughes
serial appliances. A Hughes serial appliance can support up
to four serial devices.
• Port forwarding – Allows servers on your LAN to receive
specific Transmission Control Protocol (TCP) and User
Datagram Protocol (UDP) traffic from the Internet.
VADB To support the VADB feature, an RJ-11 telephone cable connects
the HN7700S to a phone jack. (In some countries, a converter
may be required to connect the cable to the phone jack.) Figure 4
shows an example of a VADB connection.
T0156003
If the satellite link between the HN7700S and the Hughes
Network Operations Center (NOC) fails or degrades below a
certain threshold, the HN7700S automatically switches to VADB
mode. The terminal's internal modem establishes a connection to
Figure 4: HN7700S VADB connection
RJ-11
telephone
cable
Chapter 1 • Introduction
1037073-0001 Revision E
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