
Users Manual & Installation Guide
PV- 1800: Power supply module with GSM MODEM
Digital outputs (CN2)
The digital section has 7 isolated digital outputs connected to a 10pin box header (CN2). The outputs are configured as PNP outputs with their transistors connected to an external supply voltage (+V_EXT). The table shows the connector layout:
Pin no | Name  | Pin no   | 
1  | Digital output #0  | 1  | 
2  | Digital output #1  | 6  | 
3  | Digital output #2  | 2  | 
4  | Digital output #3  | 7  | 
5  | Digital output #4  | 3  | 
6  | Digital output #5  | 8  | 
7  | Digital output #6  | 4  | 
8  | 9  | |
9  | +Vext  | 5  | 
10  | NC  | 
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The output circuitry looks like this:
    ![]()
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1#+@5=&6
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Attention!
The user has to add proper 
The software interface is explained in section 
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