Sensoray 2453 - Manual (Page 8)

• Configuration button;
• LED indicators: green (top) – power, red (bottom) – special function;
• Power (5 V DC, + on center).
GPIO
Model 2453 provides one general purpose input that could be either optically insulated
or galvanically coupled, and one general purpose optically insulated output. The
simplified schematic of the GPIO is shown on Fig.1.
Figure 1. Example of GPIO connections.
An example of connecting 2453's GPIO is shown on Fig.1. The optoisolators are Avago
ACPL-217. Please refer to the manufacturer's documentation for complete electrical
specifications.
Table 2. GPIO terminal block pinout (left to right).
1 GPI-C1
2 Ground
3 GPI-A
4 GPI-C
5 GPO-C
6 GPO-E
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