Operator's Manual

Root Chapter 14: Service and Maintenance
www.masimo.com 175 Masimo
Power-On Self Test
To conduct a Power-On Self Test
1. Connect Root to AC power, and verify that the AC Power Indicator
is illuminated.
2. Power On Root. Within five (5) seconds, all available indicators will
illuminate, the device will emit a tone, and the Masimo logo will
display.
Nurse Call Setting Connections
For maximum flexibility, either normally open or normally closed signals are
available. During an alarm condition or a low Signal IQ event, depending on
the configuration of the device output, the normally open pin will be
connected to the common pin, and the normally closed pin will be
disconnected. In addition, the Nurse Call Polarity can be inverted to
accommodate various nurse call station requirements. See Device Output
on page 88.
Only authorized service personnel should connect one of these two signals
to a hospital’s Nurse Call system.
Cable Type
Nurse Call Event
Menu Setting
2-Circuit
2 contacts normally
opened
Nurse Call Polarity
Normal
2 contacts normally closed
Nurse Call Polarity
Inverse