Warning: The static discharge wrist strap must be used to prevent
damage to the sensitive circuit pack components from static charges. The
wrist strap should be tested before it is used.
2. At the equipment frame, attach the static discharge wrist strap securely to the
ESD lug mounted at the top of the frame.
3. Power down OOS SG of the MCTSI. To do this, press the OFF button on the
410AA.
Response: 410AA OFF lamp lights.
4. Unseat the corresponding UN584 circuit pack. This will prevent possible damage
to this circuit pack during the EI paddle board replacement.
— The UN584 for MCTSI SG 0 is at position 019-088.
— The UN584 for MCTSI SG 1 is at position 028-088.
Warning: Do not disconnect the coaxial cables from the T-connectors.
Doing so will cause communication loss between the workstation and the
switching module.
5. At the MCTSI backplane, disconnect the coaxial EI bus cable that connects to the
982YP MHEIB paddle board.
— The 982YP for MCTSI SG 0 is at position 019-088.
— The 982YP for MCTSI SG 1 is at position 028-088.
Warning: The MHEIB paddle boards are very thin. Handle with care!
6. Gently remove the MHEIB paddle board.
Figure 6.6-2 — SM-2000 DIP Switch Settings
CORRECTIVE MAINTENANCE
Procedure 6.6
235-200-150
January 2003
Page 6.6-2 Issue 3.00
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