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| Protocol | Media | Interface |
|---|---|---|
| BACnet FT | Free Topology (FT) twisted pair cable | U60 FT USB Network Interface Expansion Module |
| BACnet/IP | 10BASE-T (minimum) Ethernet over Cat 5 (minimum) star topology twisted pair cables | Built-in LAN and WAN interfaces |
| BACnet MS/TP | RS-485 bus topology twisted pair cable | External third-party BACnet/IP to BACnet MS/TP router, combined with one of the built-in LAN or WAN interfaces |
| EnOcean | Wireless | USB 300, 300U, 400J, and 500U EnOcean network interfaces EnOcean IoT Connector (IoTC) (remote mode is supported as beta with SmartServer 4.3 Update 1 and higher) |
| LON FT | Free Topology (FT) twisted pair cable | U60 FT USB Network Interface Expansion Module |
| LON IP-70 | 10BASE-T (minimum) Ethernet over Cat 5 (minimum) star topology twisted pair cables | Built-in LAN and WAN interfaces |
| LON IP-852 | 10BASE-T (minimum) Ethernet over Cat 5 (minimum) star topology twisted pair cables | Built-in LAN and WAN interfaces |
| LON PL-20 | Power line (PL) mains cable | U70 PL-20 USB Network Interface Expansion Module |
| LON TP-1250 | TP-1250 bus topology twisted pair cable | U60 TP-1250 USB Network Interface Expansion Module |
| LoRaWAN | Wireless | ChirpStack 4.2 and compatible LoRaWAN gateway |
| Modbus RTU | RS-485 bus topology twisted pair cable | Built-in isolated RS-485 interface (SmartServer IoT EX only) or IOX I/O Expansion Module |
| Modbus TCP | 10BASE-T (minimum) Ethernet over Cat 5 (minimum) star topology twisted pair cables | Built-in LAN and WAN interfaces |
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