Timeline for Why are there two wires connected to each terminal of the RS485 port in energy meters
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Mar 8 at 21:49 | comment | added | Voltage Spike♦ | Yeah, but that probably wouldn't come out of the RX/TX port and those units are probably chassis grounded or grounded between units. | |
| Mar 8 at 19:58 | comment | added | Justme | Minor addition; one differential pair between devices is enough, if the devices share a ground reference, otherwise a third wire is required for ground reference between devices. | |
| Mar 8 at 18:49 | history | answered | Voltage Spike♦ | CC BY-SA 4.0 |