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DEFINITY Made Easy Tools
Issue 2, November 2000



System 75 Small-Cabinet to R8si (Blowback)

Remove circuit packs (A and B carriers) [75 small upgrade]

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Note

This procedure is for A and B carrier systems only.


Danger! Before inserting or removing a circuit pack from a cabinet, put on a wrist strap and attach its plug or clip to the cabinet's frame.

  1. To ensure that the port circuit packs (in the A and B carriers) and the power units (in the B carrier) are properly replaced, label each component with its slot number.

  2. Disconnect the power cords from the power units in the B carrier.

  3. Remove all port circuit packs from carriers A and B and the power units from carrier B. Store the circuit packs in the static-proof packaging.

  4. Remove the circuit-pack blanks from slots that do not contain circuit packs.

  5. Remove the front trim plate from the A carrier by pulling straight off.

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