Setting Nurse Call Rs-232 Polarity - Covidien Nellcor OxiMax N-600x Operator's Manual

Using the Data Port

Setting Nurse Call RS-232 Polarity

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on battery. The relay-based nurse call function is available when
the monitor is operating either on AC power or on battery power.
The remote location is signaled anytime there is an audible alarm.
If the audible alarm has been turned off or silenced, the nurse call
function is also turned off.
Pin 11 on the data port is the RS-232 level nurse call signal and
pin 5 or 10 is ground (see Table 8). When there is no alarm
condition, the voltage between pins 10 and 11 is -5 to -12 VDC.
Whenever the monitor is in an alarm condition, the output
between pins 10 and 11 is +5 to +12 VDC.
Pins 7 and 15 provide a relay that closes when an alarm is
sounding on the monitor. Pins 8 and 15 provide a relay that
opens when an alarm is sounding. Pin 15 is a common lead for
both relays.
The nurse call function needs to be tested after it has been set up
in your facility. The nurse call feature should be tested whenever
setting up the N-600x pulse oximeter in a location that uses nurse
call. If an attached O M
XI
the monitor display reads zeros and the monitor remains in the
Pulse Search Mode for 5 seconds, then the monitor displays [ - - -
] (3 dashes) in the %SpO
the nurse call function is to create an alarm condition (for
example, sensor disconnect) and verify that your facility's nurse
call system is activated.
The nurse call polarity can be set to a positive signal (NORM +) on
a monitor alarm condition or a negative signal (NORM -) on a
monitor alarm condition.
1. With the monitor in the normal monitoring mode, press the
SETUP softkey.
sensor is not connected to a patient,
AX
and pulse rate display. One way to test
2
N-600x Operator's Manual