Nellcor OXIMAX N-595 Service Manual page 115

Data Port Interface Protocol
stair step signal. The stair step signal will start at 0.0 VDC and increase up to
1.0 VDC in 0.1 VDC increments. Each increment will be held for 1 second.
Through use of the softkeys, the 0.0 VDC, 1.0 VDC, or stair step signal can be
selected individually (see Analog Output page 19).
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