IDS-409F-TSS20U Industrial Managed Switch, 9 ports: 8 x 10/100/1000Base-T Base-T RJ-45 ports and 1 x 100Base-BX, 1310nm TX / 1550nm RX single strand single mode port with simplex (BIDI) ST connector [ 20km/12.4 miles ]. -10 to 60C operating temperature.