User's Manual

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3.1 General (Remote Optic Unit)
The following figure shows the block diagram of SMDR-NH124 Remote Unit.
Figure 3.1 – Remote Unit Block Diagram
There are many components;
 R-Optic : Remote Optical Unit
 RCPU : Remote Central Processor Unit
 RPSU(AC) : Remote AC Power Supply Unit(When using the AC input power)
 RPSU(DC) : Remote DC Power Supply Unit(When using the DC input power)
 RDU1-3 : Remote Drive Unit
 MULTIPLEXER : Combine Unit
 SIU : System Interface Unit