Comtech EF Data UT-4514F Especificaciones descargar pdf (Pagina 159)

UT-4500-A Series Upconverters Revision 1

Appendix C MN-UT4500A

C–3

14 VDC: A fault ("FT") indicates a voltage level exceeding ± 10% of the power supply voltage.

The 14 VDC is developed in the modules. Check the output of the 15 VDC Power Supply

Module, check for other module faults, and check all connections. If the fault still exists, remove

the converter and return it to Comtech EF Data for repair.

VCC (+5 VDC): A fault ("FT") indicates a voltage level exceeding ± 10% of the power supply

voltage. The 5 VDC is developed in the modules. Check the output of the 15 VDC Power Supply

Module, check for other module faults, and check all connections. If the fault still exists, remove

the converter and return it to Comtech EF Data for repair.

C.2.3.3 RF Converter Module

IFLO Lock Detect: A fault (“FT”) indicates that the IFLO is not locked. Check all connections to the

converter module to make sure they are secure. If the fault still exists, remove the Converter

Module and return it to Comtech EF Data for repair.

C.2.3.4 Synthesizer Sum Loop Module

Sum Loop Detect: A fault (“FT”) indicates that the sum loop is not locked. Check all connections

to the converter module to make sure they are secure. If the fault still exists, remove the Sum

Loop Module and return it to Comtech EF Data for repair.

C.2.3.5 Synthesizer Fine Step Module

Coarse Loop Detect: A fault (“FT”) indicates that the coarse loop is not locked. Check all

connections to the converter module to make sure they are secure. If the fault still exists, remove

the Fine Step Module and return it to Comtech EF Data for repair.

Fine Loop Detect: A fault (“FT”) indicates that the fine loop is not locked. Check all connections to

the converter module to make sure they are secure. If the fault still exists, remove the Fine Step

Module and return it to Comtech EF Data for repair.

C.2.3.6 Reference Oscillator Module

Reference Lock Detect: A fault ("FT") indicates that the reference oscillator detected an external

reference, but could not lock to it. Disconnect the external reference. If the fault still exists,

remove the Reference Module and return it to Comtech EF Data for repair.

C.2.3.7 Temperature Fault

Upconverter Over Temperature Fault: A fault ("FT") indicates that the converter is over

temperature. Turn the prime power switch off and return the converter to Comtech EF Data for

repair.

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Comtech EF Data UT-4514F Especificaciones Pagina 159