DT-4500 Series C- and Ku-Band Down Converters MN/DT4500.IOM
Appendix B Revision 2
B–2
B.2 Maintenance Testing
The DT-4500 is a down converter. It converts the input RF frequency to an output
IF frequency. The RF input level is -45 dBm (typical), and the RF output level is 0
dBm (typical).
(TOP) Initially Released Chassis
(BOTTOM) Current Production Unit
Figure B-2. DT-4500 Front Panel (DT-4503 Shown)
Figure B-2 identifies the DT-4500 front panel features:
• Item 1 – Rack handles. See Chapter 3. INSTALLATION AND STARTUP to
review the installation information and to prepare for checkout.
• Item 2 – Sample Test Points. See Sect. B.2.1 for details.
• Front panel operations – See Chapter 6. FRONT PANEL OPERATION for
details about using the LEDs (Item 3), VFD (Item 4) and its menu system,
and the keypad (Item 5).
B.2.1 Sample Test Points
Use these test point connections to monitor the RF input and the IF output:
• The ‘RF’ Type ‘SMA’ female connector provides the RF input. An optional
RF LO monitor is available that replaces this RF monitor connection.
• The ‘IF’ BNC female connector provides the IF output.
B.2.2 Troubleshooting
When a fault condition is indicated or a marginal performance tolerance
condition exists, you may use the front panel LEDs and VFD to identify the
specific faults and events:
• The LED status indicators alert you to operating problems.
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