ETC Unison Mosaic Show Control - Manual (Page 32)

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RIO
ADDRESS WHEEL
Multiple RIOs may be used on a single network. Each RIO is uniquely identified by its type (80,
44, 08 or A) and an address setting.
Wheel settings '1' to '15' directly set the RIO's address to the corresponding number. Up to 15
of each type may be addressed in this way. For systems with more than 15 RIOs of a single
type, the manual ('M') setting should be used to allow identification using the RIO's serial
number rather than the address.
RESET SWITCH
The RIO may be reset by inserting a small blunt object into the reset hole on the front of the
RIO to depress the reset switch. The switch should be held for at least one second.
WATCHDOG
An internal "watchdog" will automatically reset the RIO in case of a software crash as a result of
either a coding error ("bug") or a random electromagnetic event such as a power brown-out or
spike, nearby lightning strike or static discharge.
PORTS
• Digital/Analog Inputs (RIO 80 and RIO 44 only)
The RIO features 8 (RIO 80) or 4 (RIO 44) digital/analog inputs on two (RIO 80) or one
(RIO 44) 8 way connectors. To connect an input signal to the RIO, one connection should
be made to the desired input pin, marked '1' to '8' (RIO 80) or '1' to '4' (RIO 44), and the
other should be made to the adjacent common pin.
The RIO inputs can be individually configured to operate in one of three modes:
Contact closure: An external volt-free switch may be connected between the input pin
and the signal ground pin.
In this mode, the input pin is internally pulled-up to 5V via a 2.2Kohm resistor, so the
switch only needs to be rated at 5V, 2.5mA or greater.
Digital input: An external voltage source (such as a 12V trigger output) may be
connected between the input pin and the signal ground pin.
In this mode, the input pin is internally pulled down to 0V via a 2Mohm resistor and the
maximum input voltage supported is 24V.
NOTE: The reset must not be operated during firmware updates to the RIO as
corruption of the software may occur, perhaps even rendering the unit
inoperable.