3.5.3 Digital connector and signals
Digital connector pins
FunctionPart
Digital in signal 11
Digital in signal 22
Digital in signal 33
Digital in signal 44
Signal ground5
Digital out signal 16
Digital out signal 27
Digital out signal 38
Digital out signal 49
Digital signals
All digital input and output signals will be confined to the same D-sub connector and have a common
ground. The four input signals will be scanned synchronously, and the outputs will be set synchronously.
Digital input signals
The digital in-signal can be used to monitor external equipment by registering, for example, error signals
or event marks. An event mark can be used as a trigger for watches. The measured digital signals can
be shown as a curve in UNICORN. The unit will handle both open/closed circuit and TTL-type voltage
signals. An open circuit is interpreted as logical 1 and a closed circuit as logical 0.
A closed circuit is always closed against signal ground.
Note:
ÄKTA pure User Manual 29119969 AB 117
3 ÄKTA pure external modules
3.5 I/O-box E9
3.5.3 Digital connector and signals
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