Replacing the processor
Page 94 OmniTrax Product Guide
Replacing the processor
The processor is mounted on a metal backplate, which in turn mounts inside the OmniTrax
enclosure. The metal backplate fits onto four studs on the side bulkheads of the enclosure (see
Figure 59:
Installing the mounting plate in the enclosure). The processor’s I/O connectors are
oriented toward the cable glands on the bottom of the enclosure. The TNC connectors are located
near the top. To install the mounting plate inside the OmniTrax enclosure:
Removing the processor and backplate
1. Label and disconnect all processor wiring and cables.
2. If required, remove any auxiliary cards from the 40 pin header (J1).
3. Loosen the mounting hardware on the two studs near the bottom of the enclosure (one on
each side).
4. Disconnect the PCB ground strap from the enclosure ground stud.
5. Lift the backplate out of the enclosure.
Replacing the processor and backplate
1. Fit the backplate onto the four studs on the side bulkheads.
2. Tighten the backplate mounting hardware on the two studs near the bottom of the enclosure.
3. Connect the PCB ground strap.
4. Install the auxiliary cards on J1.
5. Connect the wiring and cables.
6. Calibrate and test the processor before putting it into service.
Note The processor and auxiliary cards include static sensitive components.
Follow proper ESD procedures when working on the cards.
Note The processor and backplate form a single assembly. Do NOT attempt to
remove the processor circuit card from the metal backplate.
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