Maintenance Testing; Test Point Samples; Figure 35. Converter Signal And Interconnecting Cable Diagram - Comtech EF Data UT-4505 Installation And Operation Manual

UT4500 Series Up Converter
Maintenance and Troubleshooting
Prime Power Cord Input
5/10 MHz Ref. Osc. Input
Summary Fault Relay Output
Serial Comm. Interface
(RS-485 / RS-232C)- COM 1
High Speed Bus (HSB)
IF Input (IF)
IF Loop Input (LP IN)
IF Loop Output (LP OUT)
RF Output (RF)
RF Loop Input (LP IN)
RF Loop Output (LP OUT)

Figure 35. Converter Signal and Interconnecting Cable Diagram

7.2 M
AINTENANCE
Use the instructions in Chapter 2, Installation, for installing the converter for checkout,
and the procedures in Chapter 3, System Operation, for operating the converter.
The converter is a Up Converter which translates the input IF frequency from 52 to 88
MHz (or optional 104 to 176 MHz) to an output RF frequency - for example, the RF
output frequency of the Model UT-4514 is 14000 to 14500 MHz. The IF input level is -
35 dBm (typical), and the RF output level is +10 dBm at 1 dB compression.
7.2.1 T P
EST OINT
The IF input and RF output can be monitored at the RF Sample Test Points on the front
panel. A BNC connector is provided for the IF sample, and an SMA connector is
provided for the RF output. The RF sample output level is -20 dBc nominal, and the IF
sample input level is -20 dBc nominal.
J2
P1
J1
J3
J4
J6
J8
Transmit
I/O Switch
J5
Module
J7
(TSM)
J9
(with TSM Switching Module).
T
ESTING
S
AMPLES
Power
Supply
Monitor & Control Assembly
RF Converter
86
MN/UT4500.IOM
Reference
Oscillator
Module
Module
Revision 2
Fine
Step
Sum
Loop