Chapter 2 • Subsystems
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1037852-0001 Revision A
Auto-commissioning can take place over the Internet or the
satellite link using the web-based auto-commissioning server
(WebACS).
Satellite-based commissioning Satellite-based commissioning (SBC) is a optional feature that
allows an operator to commission the installation without using a
phone line to contact the WebACS. This method automatically
establishes TCP connectivity between the client and NOC
components.
SBC implements various approaches to enable this to occur.
Some of the important techniques used to enable this are as
follows:
• The source IP address configured in the TCP/IP stack can be
the same for multiple PC's that are commissioning
simultaneously
• The default gateway IP address for all commissioning PC's
will be the same
• The DNS server IP address can be any private address
reserved by HNS since DNS lookups are proxied in the NOC
during SBC
The SSGW is the major NOC component of the SBC process.
SBC is not available with the TGW-100.
UEM database
The unified element management (UEM) database contains
configuration information for these services, maintained under a
separate schema for each. The NOC Forms application provides a
configuration interface for CAC, WebACS, while Vision contains
its own interface. The MFS is configured using an ASCII text file.
Special services gateway
The special services gateway acts as the IP gateway for satellite
routers that are not yet commissioned. The special services
gateway is optional, but required for using the WebACS feature.
The SSGW is not an option on the Transportable Gateway
(TGW) model.
Quality monitor PC
The QMPC, with help from the SNMP interface, receives the
satellite gateways modulated output and monitors its quality,
posting alarms and initiating satellite gateway switchover as
appropriate.
Used in redundant systems only, the QMPC ensures that only one
SATGW-DVB modulator chain passes traffic at any given time.
The SATGW-DVB modulator chain to pass traffic can also be
selected manually by the HX gateway operator.
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