Terrasat Rx 1+1, Operation Manual

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Functional Description
• Embedded Web pages
Embedded Web pages provide management for small networks by using a Web
browser.
• Alarm History (with time stamps)
A log of alarms that occur is maintained. This can simplify troubleshooting
(especially when an intermittent problem occurs).
• 10 MHz Alarm Enable/Disable
This feature is useful for those LNBs that have an internal 10 MHz reference
signal.
• SNMP polling
SNMP polling is the process of retrieving a specific piece of information from
remote devices in order to determine faulty behavior or connection problems.
System Configurations
Figure 2.8 represents a typical system configuration using DC-powered Terrasat
receive redundant systems. Figure 2.9 on page 2-14 represents a typical system
configuration for AC-powered systems. For most installations, the Rx 1+1 interface is
mounted on the boom arm while the LNBs and waveguide switch are mounted on the
antenna feed. The Rx 1+1 interface and the LNB can interface directly to a satellite
modem or to an IFU. In addition, the indoor equipment will receive the Rx L-band
signal from the Rx 1+1 interface.
For LNBs without an internal 10 MHz signal, the indoor unit must provide a 10 MHz
reference signal. The LNBs require a 10 MHz input signal at -10 dBm to 0 dBm. In
general, the LNBs are located in close proximity (less than 10 ft (10 m)) to the Rx 1+1
interface. However, for installations that require a long cable run (that is, greater than
10 ft (3 m)) between the LNBs and the Rx 1+1 interface, contact Terrasat. for
additional information.