Nellcor OXIMAX N-600X Series, Operator'S Manual

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Using the Data Port
N-600x Operator’s Manual 113
TxD represents the Transmit Data line, and RxD is the Receive Data
line.
The pin layouts (as viewed from the rear panel of the N-600x) are
illustrated in Figure 6. The conductive shell is connected to earth
ground when connected to a PC or printer.
Figure 6: Data Port Pin Layout
Pins 2, 3, and 5 provide data in RS-232 format.
Pins 1, 4, 9, and 12 provide data in RS-422 format. TxD+ and TxD-
are the differential transmit data pair. RxD+ and RxD- are the
differential receive data pair.
5 Signal Ground (isolated from Earth Ground)
6 AN_SpO
2
(analog saturation output)
7 NC_NO (relay closure nurse call, normally open)
8 NC_NC (relay closure nurse call, normally closed)
9
RxD
-
(RS_422 [
-
] input)
10 Signal Ground (isolated from Earth Ground)
11
Nurse Call (RS
-
232
-
level
-
output)
12
TxD
-
(RS
-
422 [
-
] output)
13 AN_PULSE (analog pulse rate output)
14 AN_PLETH (analog pleth waveform output)
15 NC_COM (relay closure nurse call, common lead)
Table 8: Data Port Pinouts
Pin Signal Name