..\Manuals\RCI-100-MDM rev.B.doc
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RCI-100 Connections:
The RCI-100 is the main board of an RCI-100-XXX Telemetry system. It provides the input and output
signal connections as well as the power supply for the unit. A separate communications board is
added to the RCI-100 to allow it to communicate with other units. This communications board may
have its own configuration that is in a separate section of this manual. The following configuration
applies only to the RCI-100 board and is common to all communications interfaces.
AC Power & Fuse:
The RCI-100 is typically powered from 120VAC and protected by a 125mA
SLOBLO fuse. It can be wired for 240VAC operation by removing (de-
soldering) power jumpers J1 & J2 and installing (soldering) jumper J3.
When changing the RCI-100 to 240VAC power make sure to change the
fuse to half of its value, 62mA. This is important since at 240VAC the RCI-
100 requires only half the current as if it were powered from 120VAC.
Proper protection is only achieved by reducing the fuse value as mentioned
above.
DC Power & Battery Backup:
The RCI-100 may also be powered from a 24VDC source which could be a battery
or a DC power supply. The 24VDC power input is polarity protected with a fuse to
prevent damage to the RCI-100 by inadvertent reverse polarity. A DC fuse
provision is also provided if this power option is utilized. Insert a 5A automotive
type blade fuse into the Battery Fuse socket.
