System Concept for HIQuad X
HI 803 211 E Rev. 1.01.00 Page 25 of 110
3.4 Extension Rack
The extension racks (F-BASE RACK 11) allow the HIQuad X system to be equipped with up to
265 I/O modules. The extension racks can be equipped with a maximum of 16 I/O modules to
be inserted in slots 1...16. The I/O processing module is used to connect the system buses to
the I/O bus.
The power distribution modules (F 7133) are used to fuse and distribute L+ and L- for the I/O
modules. The power distribution modules are interference-free. They are provided with fuse
monitoring and signal a failed fuse via contact and LED.
Figure 11 shows a fully equipped extension rack.
Figure 11: Extension Rack
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