Figure 7-3. Switches, Jumpers, And Connectors On The Logic Board; Table 7-2. Configuring For Serial Port Mode Of Operation - Advanced Energy MDX II User Manual

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Advanced Energy
The jumpers are labeled P2, P3, P4, and P5. The red switch, labeled S1, is located just to the
right of the jumpers. The ribbon cable, which connects the logic card at P6 or P9 to the back of
the MDXII unit, is located in the upper right corner of the logic card.

Figure 7-3. Switches, jumpers, and connectors on the logic board

Follow these steps for either an AE Bus or a Profibus operation:
1. Disconnect all sources of input power from the MDXII unit and wait a few minutes before
attempting to set the jumpers.
2. Remove the top cover and the clear plastic safety shields.
3. Pull up on the end of each extractor lever; grasp both levers and use them to remove the
logic PCB from the card cage (the logic PCB is the board closest to the outside of the unit).
4. Set the jumpers, the S1 switch, and the ribbon cable for your mode of operation, using the
table below.

Table 7-2. Configuring for Serial Port Mode of Operation

Mode of
Operation
AE Bus RS-232
AE Bus RS-485
Profibus RS-485
5. Return the PCB to the card cage, and replace the safety shields and cover.
7-4
Jumpering
jumper P2, P3, P4, and
P5 across pins 1 and 2
jumper P1, P2, P3, and
P4 across pins 2 and 3
Serial Port Connection, Controls and Indicators
Switch S1
position to 232 = right
position to 485 = left
position to 485 = left
Ribbon
Cable
P6
P6
P9
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