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The receiver and decoder circuits are on the main circuit card mounted
securely within the lid. The body of the box contains space for:
• The power supply (fitted in the 4618-60 only)
• A backup battery (not supplied)
• The 4618EUR-55, an optional 8-channel relay output card.
There differences between the three variants of the 46RX are:
• The 4618-50 power supply enclosure is empty, and there is no mains
cable terminator.
• The 4618-60 is fitted with a mains power supply, and mains cable
terminator and fuse.
• The 4619-50 has no mains power supply, and no receiver on the main
circuit board.
Figure 2 is an expanded view of the main circuit card showing the location of
the connectors and controls.
Figure 2. Main Circuit Card Controls And Connectors
Technical Description 4618
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