IDS-205F-TMS2U Industrial Managed Switch, 5 ports: 4 x 10/100/1000Base-T Base-T RJ-45 ports and 1 x 100Base-BX, 1310nm TX / 1550nm RX single strand multimode port with simplex (BIDI) ST connector [ up to 5km/3.1 miles ]. -10 to 60C operating temperature.