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ROC800-Series Instruction Manual
2-10
Installation and Use
Revised Jul-14
ROC809: Two catches.
ROC827: One catch.
ROC827 and one EXP: Place catches on ROC827 and EXP.
ROC827 and two EXPs: Place catches on ROC827 and second EXP.
ROC827 and three EXPs: Place catches on ROC827 and third EXP.
ROC827 and four EXPs: Place catches on ROC827 and second and
fourth EXP.
2.4.3 Removing the ROC800 from the DIN Rail
To remove the ROC800 from DIN rails, gently lever the DIN rail
catches (located on the top of the housing) up approximately 3-4mm
(1/8”). Then tilt the top of the ROC800 away from the DIN rail.
2.5 ROC800-Series Expansion Backplane (EXP)
The expansion backplane has connectors for the central processing unit
(CPU), the power input module, and all the I/O and communication
modules. Once a module is completely inserted into the module slot, the
connector on the module fits into one of the connectors on the
backplane. The backplane does not require any wiring, so no jumpers
are associated with the backplane.
Figure 2-4. ROC827 and Expansion Backplane