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136 Intel NetStructure
®
MPCBL0001 High Performance Single Board Computer
Technical Product Specification
Operating the Unit
NOTE: This jumper is only applicable to the following versions of MPCBL0001 boards:
• MPCBL0001F04 - TA# C55360-014
• MPCBL0001N04 - TA# C13354-013
10.5 Digital Ground to Chassis Ground Connectivity
In the default grounding for the MPCBL0001xxx, digital ground is isolated from the chassis
ground.
To connect the digital ground to the chassis ground, follow this procedure:
1. Remove the screw with the black insulation washer (circled in red in Figure 28 below).
2. Remove the black insulation washer and store it in a safe place. It will be needed if you want to
isolate the digital ground from chassis ground in the future.
3. Reinstall the screw and tighten to 4 lb-in.
Note: Digital ground is also called logic ground. Chassis ground is also known as shelf ground.
Table 93. J40 Jumper Assignments
Jumper Function
J40-1 to 2 Boot block unprotected.
J40-2 to 3 IPMC Boot block has been protected (Default). If user
were to update the IPMC boot block, the jumper needs
to be connected to 1-2.
Figure 28. Connecting Digital Ground to Chassis Ground
Insulated
screw