DTX BLD

1 Diagnostic Link

Diagnostics >> System Function >> RF >> Transmitter Diagnostics

Diagnostics >> Hardware Location >> System Cabinet >> Transmitter Diagnostics

Figure 1. DTX BLD

2 Purpose

The DTX BLD tests the fiber link between the DTX and the IXG3, and the circuitry internal to each DTX module. Every system has a narrowband exciter (DTX). The DTX module also contains a clock reference module that produces a very accurate 80MHz clock signals and an 112 MHz LO signal.

3 Components Tested

  • The fiber link between each DTX module and the IXG board.

  • The programmable registers and logic internal to the DTX.

4 Requirements

Run and pass the IXG BLD before running DTX BLD.

5 Block Diagrams

Figure 2. DTX Block Diagram

6 Test Sequence

  1. Select DTX Board Level Diagnostics from the Transmitter Diagnostics screen.

  2. Click Run.

  3. Review Test Results table to see whether the diagnostics passed or failed.

7 Expected Results

Output values are judged pass or fail. In the event of failure, the details of the failure can be found in the GE System Log.