Allen-Bradley 1785-TR10BT AUI to Twisted Pair Transceiver

The Allen-Bradley 1785-TR10BT is an AUI-to-10BASE-T Ethernet transceiver that converts AUI Ethernet connections to 10BASE-T twisted-pair networks for PLC-5 controllers. It is commonly installed in PLC-5 control racks, industrial control panels, and legacy automation systems where Ethernet connectivity upgrades are needed, enabling Ethernet communication between PLC-5 processors and plant networks. Key specifications include: Series A; part number 1785-TR10BT; interface AUI to 10BASE-T; IEEE 802.3 Ethernet; twisted-pair media; 10 Mbps data rate; external module mounting; designed for industrial automation communication environments. Common replacements include Allen-Bradley 1785-ENET, Siemens 6GK1105-2AA10, and Hirschmann M1-8TX.