624074/07 I-3
• The delay time from the onset of an alarm condition
to the point that the representation of the alarm
condition leaves the signal input/output port (of the
communications interface) is typically 500 ms. The
time it takes the message to appear on the con-
nected monitor depends on the characteristics of the
patient monitor.
• See Section J.8 for all production log information.
The communications interface option offers these capabilities:
• The RS-232 interface (2 ports) outputs monitored data, ven-
tilator settings, and alarms to a monitoring device, a patient
data management system (PDMS), or an other computer
system.
• The I:E timing outlet outputs signals for time of insufflation,
pause, and exhalation. These are used for special applica-
tions, such as an external nebulizer.
• The remote alarm outlet outputs alarm signals to a nurse
call device.
A ventilator has three connectors at the back (Figure I-5).
The patient monitor or computer connects to the Monitoring
Interface connectors. The nurse call or other device connects to
the Special Interface connector.
I.2 RS-232 interface
The RS-232 interface lets the HAMILTON-G5 send monitored
data, waveforms, modes, control settings, and alarms to
a patient monitor, a patient data management system (PDMS),
or an other computer system through two Monitoring Inter-
face connectors. Table I-3 lists the pin assignments for these
connectors.
With the Humidifier option, you can connect the HAMILTON-
H900 communication cable (see Figure 2-9) from the humidi-
fier to the ventilator RS-232 port. This allows transfer of
humidifier data to a connected PDMS. This connectivity is
included with the option.
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