Just had a look at ignitech website and the interface used, its RS485 ( multidrop serial comms ) nothing to do with RS232, other than both are serial comms protocols (*). RS422/485 differential 5V and RS232 differential +-12V to 15v.... should that help in clarity. j
BTW ignitech never use the term RS485, that is cleaned from the serialising interface chip website/URL they link to. "Com" port is obscure in this context, it was clear in the day of its mainstream use. One or One and half or two stop bits with your tea? Flintstone Cafe...
(*) Strictly speaking, RSxxx is a hardware definition, not what is actually defined and carried as a data stream upon the defined RSxxx interfaces end to end, half duplex, and type of connecting wires form, STP UTP et al.
BTW ignitech never use the term RS485, that is cleaned from the serialising interface chip website/URL they link to. "Com" port is obscure in this context, it was clear in the day of its mainstream use. One or One and half or two stop bits with your tea? Flintstone Cafe...
(*) Strictly speaking, RSxxx is a hardware definition, not what is actually defined and carried as a data stream upon the defined RSxxx interfaces end to end, half duplex, and type of connecting wires form, STP UTP et al.
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