Hughes DW6000 User Manual

Page of 174
Appendix E • Installing DVADB
1033295-0001 Revision 2
129
Appendix E
Installing DVADB
DVADB features
The DIRECWAY Virtual Private Network (VPN) Automatic Dial 
Backup (ADB) (DVADB) feature provides a backup 
infrastructure to the DW6002 should the satellite link fail or 
degrade below an acceptable threshold. 
DVADB automatically switches the DW6002 to a terrestrial 
dial-up telephone network with minimal interruption and loss of 
customer traffic. DVADB introduces no additional load on the 
DW6002 and does not affect any existing DW6002 features, but 
will make the DW6002 send and receive traffic at a slower rate.
To use DVADB, the DW6002 via dial-up connection to a global 
network of Points of Presence (POPs). Each POP is an access 
point to the Internet. The packets are sent from the POP to the 
NOC, which in turn forwards them to the destination server.
DVADB pre-installation
The following must be fulfilled before DVADB can be installed:
• The DW6002 must be installed, commissioned, and 
functioning before DVADB can be installed. 
• The customer must have an analog phone line.
• A telephone splitter and RJ-11 telephone cable is required.