Plug Connector for MicroTCA(TM) and AdvancedTCA® Mounting direction

Mounting direction

The HARTING Plug Connector is available in two versions. The difference is the mounting direction, i. e. the side of the AdvancedMC™ module PCB on which the Plug Connector is assembled.

Basic side
The so called basic side refers to the component side 1 as defined in the AMC.0 specification (pins 1 to 85). The main components are mounted on the basic side (sometimes also called top side).
During the manufacturing process, a Plug Connector that is mounted from the basic side can be soldered in the same assembly step as the other large components.

Extended side The so called extended side refers to the component side 2 as defined in the AMC.0 specification (pins 86 to 170).
A Plug Connector mounted on the extended side is “hanging” at the bottom side of the AdvancedMC™ module.

This picture shows an AdvancedMC™ module with a Plug Connector mounted on the extended side.

The footprint of a Plug Connector for the basic side is different than that for the extended side. The connectors are not interchangeable. Due to advantages in the assembly of the connector, the basic side version is preferable.
For an MCH stack, only connectors having the same mounting direction can be stacked.
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