233190 X3 Linear LLC 9 May 2013
Installing Additional Blades
The eMerge cabinet has five slots in the aluminum chassis. The leftmost slot is
reserved for the Network Node blade running the node application software. The
access control blade provided is mounted to its right, in slot 1.
The remaining slots, numbered 2 through 4, can hold any combination of access
control, input, output, and temperature application extension blades.
Figure 4. Slots for installing application extension blades.
You can use the slots in any sequence you choose. Note that the slots are physical
mounting points only. The electrical connection is made through the ribbon
cable, shown in Figure 5 on page 10.
How Slot and Position Numbers are Determined
Regardless of the physical slot in which a blade is mounted, its slot number is
determined by the ribbon-cable connector you plug into the blade. This is
because the ribbon cable (shown in Figure 5) is a bus, and a blade’s position on
the bus determines its slot number.
For example, even if a blade is mounted in physical slot 3, if it is attached to
ribbon cable connector 4, the application will see it in slot 4 on the bus.
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