Chapter 9: Breakout Board
Connecting to Omnii
128
Psion Teklogix Omnii HDK User Manual
5. Gently lift the back cover from the main housing to allow access to the cables that are
still attached.
6. Disconnect any cables attaching the back cover to the main unit (trigger switch, scan-
ner/imager, speaker, camera, GPS antenna are all possibilities).
7. Remove the back cover module.
8. Connect one end of the cable to the expansion port you wish to use (see Section 6.4:
“Expansion Ports” for details on connecting to these ports).
9. If the expansion back cover is used, run the cable through the end-cap or pod openings
and reattach the back cover for stability and security while testing.
10. Connect the other end of the cable to socket J33 or J42 on the breakout board.
11. Power Omnii on.
12. Load and run the required software for testing the expansion device.
Attach the Omnii Back Cover
When you are finished with your testing, follow these steps to re-attach the back cover to
your Omnii.
1. Connect all cables from the back cover to the main logic board (trigger/speaker, camera, etc.).
2. Fit the back cover in place on the main housing, making sure no cables are caught in
the seal. If a pod expansion module is required, fold the flex cable so that it is accessible
through the pod opening in the expansion back cover.
Warning: Exercise extreme caution if operating Omnii with the back cover removed. The unit
may be damaged if anything makes contact with the exposed circuitry while it is
powered on.
Warning: Zero- and low-insertion force connectors such as J33 and those on the Omnii
main
logic board are not designed to withstand many cable insertion/removal cycles and
may be damaged by repeated use. It is highly recommended to use socket J42 to
connect to the hand-held computer.
Also, when breaking the connection from the hand-held computer
,
disconnect the
cable from the breakout board rather than from the Omnii whenever possible.
Note: The breakout board will not work with the end-cap expansion port (Expansion Port 1) on
Omnii XT10 computers with main logic boards prior to revision “-500”.
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