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Cyber Hardened IBUC
2
,
IBUC
2e
,
IBUC
2
G
,
IBUC
R
,
IBUC
G
Operations Manual: Troubleshooting
Engineered to Endure
from a separate power supply for 16 watts Ku
-
band, 25 watts C
-
band, or 20 watts
X
-
band and lower power units. For higher power units, the DC voltage will be on
the DC cable that is connected to the IBUC DC Input (J3 connector). If it is not,
check the PSUI or modem power supply outputs and cables.
4. For DC-powered IBUCs, if the L-band, 10 MHz and DC voltage signals are within
range, continue with the IBUC Tx Output verification procedure that follows.
5. Disconnect the spectrum analyzer from the coaxial cable.
Cyber Hardened IBUC
2
Transmit Output Verification
This check assumes that the L-band, 10 MHz, and DC inputs (for DC-powered
IBUCs) are at the correct levels.
1. Tx Output level is monitored and displayed in the IBUC M&C. Alternatively, you
can connect a waveguide-to-coaxial adapter and a 40 dB high-power attenuator to
the IBUC Tx waveguide output.
2. Measure the Tx RF output with the spectrum analyzer connected at the waveguide
output. Ensure that the cable loss of the cable being used for the measurement has
been taken into account.
3. RF power should be between rated power and no lower than 25 dB below rated
power. If it is not, the IBUC is defective and should be returned to the factory for
repair. Instructions for returning a unit for repair are on
4. IF the IBUC Tx RF output measures within specification, ensure that the
waveguide, feedhorn, and antenna are properly aligned.
Receive L-band Output Verification
If low or no RF output power is detected, begin troubleshooting by checking the
output of the LNB.
1. Ensure that 15 VDC to 24 VDC (LNB Bias) is present at the modem Rx Input
using a digital voltmeter (DVM). If it is not present, check the cable and modem.
2. Use a spectrum analyzer to ensure that the 10 MHz signal is present at the modem
Rx Input. If it is not, check the cable and modem.
!
WARNING
DC power might be present on the cable. Terrasat recommends the use
of a DC block.
Содержание IBUC 2
Страница 6: ...iv Engineered to Endure Appendix F Glossary Glossary of Terms F 1 ...
Страница 8: ...vi Engineered to Endure ...
Страница 12: ...4 Engineered to Endure ...
Страница 46: ...System Components 2 26 Engineered to Endure Figure 2 10 DC Power IBUC System Configuration ...
Страница 57: ...General Requirements 3 9 Engineered to Endure Figure 3 2 IBUC 2 Field Installation ...
Страница 72: ...3 24 Cyber Hardened IBUC 2 IBUC 2e IBUC 2G IBUC R IBUC G Operations Manual Installation Engineered to Endure ...
Страница 102: ...6 10 Cyber Hardened IBUC 2 IBUC 2e IBUC 2G IBUC R IBUC G Operations Manual Troubleshooting Engineered to Endure ...
Страница 106: ...A 4 Cyber Hardened IBUC 2 IBUC 2e IBUC 2G IBUC R IBUC G Operations Manual Part Numbering Schema Engineered to Endure ...
Страница 128: ...B 22 Cyber Hardened IBUC 2 IBUC 2e IBUC 2G IBUC R IBUC G Operations Manual Embedded Web Pages Engineered to Endure ...
Страница 179: ...Reference Drawings D 3 Engineered to Endure Figure D 2 Fabrication Drawing FBD 21984 XXXX Rev B page 1 of 2 ...
Страница 181: ...Reference Drawings D 5 Engineered to Endure Figure D 4 Fabrication Drawing FBD 20606 XXXX Rev A ...
Страница 196: ...I n d e x 4 ...