8-14 170 Series Monitor Revision C
2000947-004
Peripheral Devices: RS-232 Connectors
Fetal Movement: This field contains one ASCII character representing the
current status of the
FM signal: low or high. If the data byte is a 0 (30H), then
the signal is low indicating no movement is detected; if the data byte is 1 (31H),
then the signal is high indicating fetal movement is detected. If the fetal
movement feature is not in the monitor, the data byte is 2 (32H). If the fetal
movement feature is present but not enabled, the data byte is 4 (34H). This data
is transmitted four times per second. (Fetal movement detection circuitry is an
option which can be purchased for the 170 Series Monitor.
Recorder Status: This field contains one ASCII character representing the
current status of the
PAPER OUT* signal: low or high. If the data byte is a 0
(30H), then the signal is low indicating paper is loaded and the recorder door is
closed; if the data byte is 1 (31H), then the signal is high indicating a paper out
condition. This data is transmitted once per second, when active.
End of Text
This 1-byte field contains the value 03H. If this byte is sent immediately following
the Monitor ID, then the 170 Series Monitor will cancel transmission of all data.
Limitations
The only restriction on the information transmitted during either 115
communication mode occurs when the baud rate is set below 4800 baud. Under this
condition, data loss may occur.
NOTE: The recommended baud rate is 9600.
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