Specifications

Bases
31007715 6/2008 401
The Lock/
Release Latch
The latch in the center front of the STB XBA 2200 base has two positions, as shown
below:
Release position
Lock position
The latch needs to be in release position while the base is being inserted on the DIN
rail and when it is being removed from the DIN rail. It needs to be in lock position
when the base has been pushed and snapped into place on the rail before the
module is inserted into the base.
The DIN
Rail Contacts
One of the roles of the DIN rail is to provide the island with functional earth.
Functional earth provides the island with noise immunity control and RFI/EMI
protection.
When a PDM base is snapped onto the DIN rail, two contacts on the back of the rail
provide the functional ground connection between the rail and the PDM that will be
seated on the base.
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