8-8 170 Series Monitor Revision C
2000947-004
Peripheral Devices: RS-232 Connectors
Nellcor Puritan Bennett Model N-400
Fetal Pulse Oximeter
Through this interface, FSpO2 readings provided by an NPB Model N-400 are
printed every five minutes on the strip chart paper of the 170 Series Monitor. The
reading is printed in the annotation area between the top and bottom grids. A solid
diamond marker, above the data, marks the time of the reading and identifies the
data source as an external device. The following is an example annotation:
FSpO2 47%
In addition, the FSpO2 data is trended on the bottom grid of the strip chart paper as a
beaded trace. The trend uses a 0-100% scale. Refer to Figure 8-1.
Figure 8-1. FSpO
2 Data Example
To connect the Model N-400:
1. Using interface cable catalog number (REF) 1557AAO/BAO: connect one end
to an available
RS-232C port on the 170 Series Monitor; connect the other end to
the
Serial Communications port on the pulse oximeter.
NOTE: This cable can be used with both 120/2121is and 170 Series Monitors.
Although the 120/2120is uses 6-pin RJ-11 connectors and the 170 uses 8-
pin RJ-45 connectors, the latter is center keyed to account for this. The 170
uses RJ-45 connectors to provide for future interface features.
2. Access the monitor’s service setup mode and set the baud rate to 2400 and the
mode to ext. FSpO
2; then exit the service setup mode.
kPa
UA
mm Hg
100
75
50
25
0
12
10
8
4
2
6
12
10
8
4
2
6
00
US US2 TOCO FSpO
2
% 3 CM/MIN
0%
50%
100% SpO
2
FSpO
2
47 %
9:00
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