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Service and Maintenance
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Engineered to Endure
Mechanical Interface
Tx redundant systems are mounted on a mounting plate to facilitate installation. The
interface module, two IBUCs, and the Tx RF switch with associated cables and
waveguide are mounted on a single plate. Power supply units are mounted on a similar
plate that is meant to be mounted close to the IBUC system. For outline drawings of
the redundant mounting system, see
.
Service and Maintenance
The Terrasat redundant systems are self-contained units that require very little
maintenance.
Standard Maintenance
For optimum performance, inspect the mechanics of the system every six months.
Clean the antenna feeds as necessary to keep them clear of obstructions and check the
cables and connectors for signs of wear, damage, or loose connections. Check all fan
intakes and exhausts to ensure that they are free and clear of debris. Ensure that all
cables have adequate slack.
Fault Isolation
Transceiver Fault Isolation
The information contained in this section should suffice in determining whether a
Terrasat redundant system 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 measuring
certain signals using test equipment.
AC Power Problems/Conditioning
In today's electrical environment there are many types of power-related problems that
prevent proper operation of sensitive electronic equipment. These noise problems or
disturbances can be caused by such things as voltage induced by lightning, the
switching on/off of high-power electrical equipment, or utility company actions such
as power factor correction. Serious problems can arise with the occurrence of
transients and spikes causing random errors, or even failure of the PSUI circuitry.
Whatever the origin of the transients, they can be classified in two categories:
• COMMON MODE: The noise voltage that appears equally and in phase from each
signal conductor to ground.
• NORMAL MODE: The noise potential between the power line conductors. It adds
to and subtracts from the power line sinusoidal voltage wave.
Summary of Contents for IBUC 3
Page 8: ...vi Engineered to Endure ...
Page 12: ...viii Engineered to Endure ...
Page 14: ...x Engineered to Endure ...
Page 33: ...System Components 2 11 Engineered to Endure Figure 2 3 DC powered IBUC3 Block Diagram ...
Page 37: ...System Components 2 15 Engineered to Endure Figure 2 4 DC Low Power IBUC System Configuration ...
Page 40: ...2 18 IBUC 3 IBUC 3G Operations Manual Functional Description Engineered to Endure ...
Page 60: ...3 20 IBUC 3 IBUC 3G Operations Manual Installation Engineered to Endure ...
Page 90: ...6 8 IBUC 3 IBUC 3G Operations Manual Troubleshooting Engineered to Endure ...
Page 132: ...B 8 IBUC 3 IBUC 3G Operations Manual Using HyperTerminal Engineered to Endure ...
Page 157: ...Menu Options D 3 Engineered to Endure Figure D 3 Hand held Terminal Menu Tree ...
Page 162: ...D 8 IBUC 3 IBUC 3G Operations Manual Hand Held Terminal Menu Tree Engineered to Endure ...
Page 227: ...Data Sheets G 7 Engineered to Endure ...
Page 235: ...I n d e x 3 Engineered to Endure ...
Page 236: ...I n d e x 4 ...