￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6 Appendix
855 Robotic Titrosampler
￭￭￭￭￭￭￭￭
49
6.3.1 Pin assignment of the remote interfaces
Figure 34 Pin assignment of remote socket and remote plug
The above figure of the pin assignment of a Metrohm remote interface
does not only apply for the Remote Box, but also for all Metrohm devices
with 25-pin D-Sub remote connectors.
Inputs
approx. 50 kΩ Pull-up
t
p
> 20 ms
active = low, inactive = high
The input lines can be scanned with the SCAN command.
Outputs
Open Collector
t
p
> 200 ms
active = low, inactive = high
I
C
= 20 mA, V
CEO
= 40 V
+5 V: maximum load = 20 mA
The output lines can be set with the CTRL command.
Table 2
Inputs and outputs of the remote interface
Assignment Pin no. Assignment Pin no.
Input 0 21 Output 0 5
Input 1 9 Output 1 18
Input 2 22 Output 2 4
Input 3 10 Output 3 17
Input 4 23 Output 4 3
Input 5 11 Output 5 16
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