Data Port - Nellcor OxiMax N-600x Service Manual

Data Port

O M N-600x Service Manual
XI AX
Table 11 lists symptoms of problems relating to the data port and recommended
actions. If the action requires replacement of the Main Board PCB, refer to
Disassembling the Monitor on page 85.
Table 11: Data Port Problems
Problem
No printout received.
The RS-232 nurse call is
inoperable.
Resolution
• Confirm the printer is working through an
alternate means.
• The monitor's baud rate does not match the
printer. Change the baud rate of the monitor
following instructions in Configuring the Data
Port on page 127.
• If the condition persists, replace the Main Board
PCB. See Main Board PCB Replacement on
page 97.
• Verify the connections are made between pins 5
(GND) and 11 (nurse call) of the data port
(Figure 16 on page 136).
• Verify the output voltage between ground pin 5
and pin 11 is -5 to -12 VDC (no alarm) and +5 to
+12 VDC (during alarm) (Figure 16 on
page 136).
• If the condition persists, replace the Main Board
PCB. See Main Board PCB Replacement on
page 97.
Troubleshooting
69