Multi-Tech Systems MVP210/410/810 User Manual

Page of 144
 
Multi-Tech 
Systems, 
Inc. 
     
 
137 
Appendix C – Installation Instructions 
for MVP428 Upgrade Card 
 
Installing the MVP428 Upgrade Card 
In this procedure, you will install an additional circuit board into the MVP410, improving it from a 4-channel VOIP 
to an 8-channel VOIP. 
 
Summary:  (A) Attach four standoffs to main circuit card.  
(B) Mate the 60-pin connectors (male connector on main circuit card; female on upgrade card). 
(C) Attach upgrade card to main circuit card (4 screws). 


*
*
(A)
*
   Add standoffs here
        (2 places).

Replace main card screws
with standoffs here
(2 places).
(B)
Mate 60-pin
connectors.
(C)
Attach upgrade card
(screws into standoffs
-- 4 places).
 
Figure C-1: MVP 248 installation 
Procedure in Detail 
1. Power down and unplug the MVP410 unit. 
2. Using a Phillips driver, remove the blank cover plate at the rear of the MVP410 chassis.  Save the screws.   
screws on blank cover plate (2)
 
Figure C-2: Remove screws from cover plate 
3. Using a Phillips driver, remove the three screws that secure the main circuit board and back panel 
assembly to the chassis.  
Important: Follow standard ESD precautions to protect the circuit board from static electricity damage.