Interface/Powerbase - Nellcor N-200 Operator's Manual

Guide to Operation
No Real-Time Output Graphics Format
In this mode, there is no output of real-time saturation and
pulse rate data. Trend and event data can be transmitted to an
output device in low-resolution graphic format, if one is
connected. The sign-on message from the powerbase is printed
when AC power is first connected.
Graphics Modes I and II
In these modes, the sign-on message is suppressed and there is
no output of real-time saturation and pulse rate data. Trend
and event data is transmitted to an output device, if one is
connected. Data can be output in either high or low resolution.
Transmission of trend and event information can be initiated
either by an external command, or with the rear-panel TREND
and EVENT buttons. Similarly, transmission can be stopped
either by external command, or with the rear-panel buttons.
Upon receiving a command to output either trend or event
information, the N-200 checks the serial communications port
to see if an ASCII device is connected. If the DSR signal input
(pin 6 on the SERIAL COMM connector) is not true, no output
occurs. Hence any ASCII device connected to the N-200 must
drive the DSR pin 6 to a logic true to output trend and event
data to the serial communications port.

Interface/Powerbase

The interface/powerbase is the detachable AC power supply
and external interface for the N-200. It provides isolated power
for operating the monitor and for recharging the batteries.
Also, the powerbase contains the circuits required to
communicate with the monitor.
The powerbase provides analog outputs of pulse waveform,
oxygen saturation, and pulse rate data, ECG waveform, and a
digital output connector (RS-232 serial interface). In addition,
it also provides a fiber-optic output connector for use with the
NELLCOR N-7000 interface, the OXINET
oximetry network, or the N-9000 recorder/interface.
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N-7500 pulse