Terrasat IBUC - Software

IBUC Operation Manual 3-7
Terrasat Communications, Inc.
Rev. A
Software
The IBUC monitors and controls several parameters and has features that make
installation and use of the IBUC simpler as well as enhancing system
performance. Refer to Chapter 6 for a full description of M&C functions.
Some of the key features include;
Monitor and Control – the IBUC may be monitored and controlled through an
assortment of interfaces including RS-232, RS-485, Ethernet port, an optional
handheld terminal or via an FSK link with compatible modems. The FSK link is
multiplexed on the L-band IFL eliminating the need for an additional cable and
simplifying installation.
Automatic Gain Control (AGC) – the IBUC continuously monitors output level. When
AGC is enabled, if a change in the TX output level is detected, the input to the IBUC is
checked to see if it has changed. If the input has not changed the IBUC adjusts the
gain of the system in 0.1 dB steps to maintain a set gain value.
Automatic Level Control (ALC) – similar to the AGC system, when ALC is enabled the
IBUC monitors output and adjusts gain to maintain a constant output level.
Redundancy – the IBUC senses automatically when configured in Redundancy. The
logic for redundant operation is built-in. Eliminates the need of an external switching
controller.
Embedded Webpage – provides management for small networks using a web browser.
Burst Operation – allows the user to operate in burst mode. The IBUC reports average
output power of valid bursts (above burst threshold) when in burst mode.
Alarm History – a log of all alarms that occur is maintained. This simplifies
troubleshooting of the system especially if an intermittent problem occurs.
Sensors – a series of internal sensors allow operator to verify performance and
troubleshoot the system. Sensors include internal temperature, 10 MHz input detector,
supply voltage, current consumption, PLDRO lock voltage, input level and output level.