C H A P T E R
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CHAPTER 6TROUBLESHOOTING
This chapter discusses basic troubleshooting procedures for the Terrasat
Communications, Inc. line of intelligent block upconverters (Cyber Hardened IBUC 2,
IBUC 2e, IBUC 2G, IBUC R and IBUC G) and outdoor units (ODUs).
Maintenance
In general, Terrasat power supply units (PSUIs) and ODUs are self-contained and
require little maintenance. However, for optimum performance, Terrasat recommends
that users inspect the mechanics of the system quarterly and perform the following:
• Clean the antenna feeds to keep them clear of obstructions.
• Check cables and connectors for signs of wear, damage, or loose connections.
• Check all fan intakes and exhausts to ensure that they are clear of debris. The user
can use a water hose for this purpose while the unit is off.
Transceiver Fault Isolation
Use the information in this section to assist in determining whether a Terrasat unit is
faulty. The intent is to determine a “Go” or “No Go” situation based on alarms
indicated through the M&C ports, as well as by measuring certain signals using test
equipment.
AC Power Problems/Conditioning
In today’s electrical environment, there are many types of power-related problems that
can prevent proper operation of sensitive electronic equipment. These problems or
disturbances can be caused by things such as voltage induced by lightning, switching
high-power electrical equipment On/Off, or utility company actions such as power
factor correction. Serious problems can arise with the occurrence of transients and
spikes which can cause random errors or even failure of the circuitry.
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