Multi-Tech Systems MVP210/410/810-SS 用户手册

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Appendix C: MVP428 Upgrade Card 
Multi-Tech 
Systems, 
Inc. 
     
 
 
138 
back panel  screws  (3)
 
Figure C-3: Remove screws from back panel 
4. Slide the main circuit board out of the chassis far enough to unplug the power connector. 
power connector
 
Figure C-4: Accessing the power connector 
5. Unplug the power connector from the main circuit board. 
6. Slide the main circuit board completely out of the chassis and place on a non-conductive, static-safe 
tabletop surface. 
7. Remove mounting hardware (2 screws, 2 nuts, and 4 standoffs) from its package.  
8. On the phone-jack side of the circuit card, three screws attach the circuit card to the back panel.  Two of 
these screws are adjacent to the four phone-jack pairs.  Remove these two screws. 
Screw locations (2)
at phone-jack edge
of board.
 
Figure C-5: Screws replaced with standoffs 
9. Replace these two screws with standoffs.