| CHAP |
Challenge handshake authentication protocol |
| CTS |
Clear to send |
| DCD |
Data carrier detect |
| DHCP |
Dynamic Host Configuration Protocol |
| DIP |
Dual in-line package |
| DIP switch |
A set of on-off switches arranged in a standard dual in-line package |
| DNP3 |
A distributed network protocol originally developed by Westronic. The DNP3 Users Group has the ownership of the protocol and assumes responsibility for its evolution. |
| DNS |
Domain Name System |
| DSR |
Data set ready |
| DTE |
Data Terminal Equipment |
| DTR |
Data terminal ready |
| Ethernet |
A standard for connecting a family of frame-based computer networking technologies into a LAN |
| GND |
Ground/earth |
| HTTPS |
Hypertext Transfer Protocol Secure |
| I/O |
Input/output |
| IEC |
International Electrotechnical Commission |
| LAN |
Local area network |
| LED |
Light-emitting diode |
| Modbus |
A serial communication protocol developed by the Modicon company in 1979. Originally used for communication in PLCs and RTU devices. |
| Modbus ASCII |
Link mode using 7-bit ASCII characters |
| Modbus RTU |
Link mode using 8-bit binary characters |
| NTP |
Network time protocol |
| PAP |
Password authentication protocol |
| RAM |
Random access memory |
| RI |
Ring Indicator |
| RISC |
Reduced Instruction Set Computer |
| RJ-45 |
Galvanic connector type |
| RS-232 |
Serial interface standard |
| RS-422 |
Serial communication standard (EIA–422) |
| RS-485 |
Serial link according to EIA standard RS485 |
| RTS |
Ready to send |
| RXD |
Received exchange data |