Trend Data Download; Figure 5-3. Nurse Call Interface Pin Layout - Covidien Nellcor Operator's Manual

The nurse call feature utilizes a relay closure to signal the nurse station during
alarm conditions. Pins 2 and 3 provide a relay that closes during alarm condi-
tions. Pins 1 and 2 provide a relay that opens during alarm conditions. Pin 2 is
a common lead for both relays.
To connect the nurse call cable:
Grasp the RJ11 end of the cable.
1.
Firmly insert into the nurse call port.
2.
Attach the alternate end of the cable into the host system.
3.

Trend Data Download

5.4.2

Caution:
Anyone who connects a PC to the data output port configures a medical
system and is therefore responsible for ensuring that the system complies
with the requirements of IEC Standard 60601-1-1 and the electromagnetic
compatibility IEC Standard 60601-1-2.
Operator's Manual
Figure 5-3. Nurse Call Interface Pin Layout
1 Nurse call normally closed
2 Nurse call common lead
3 Nurse call normally open
External Data Communication
49