Planet’s Industrial 4 Port 10/100Mbps SFP Switch is a new Industrial Ethernet Switch that can operate under extreme temperature environments ranging from -40 up to 75 degrees Celsius and is equipped with two 100Base-FX SFP slots. With two mini-GBIC 100Base-FX SFP (Small-Form Factor Pluggable) interfaces supporting the deployment distance of the ISW-621TF that can be extended from 2 kilometers (via multi-mode fibre) up to above 60 kilometers (via single-mode fibre), respectively. The ISW-621TF provides more flexibility for Transportation, Manufacturing, Security and Surveillance with distance extension without any limitation and is a suitable model either for long or short distance network deployment.
Refer to above PDF Data sheet
Part number – ISW-621TF Industrial 4 Port 10/100Mbps SFP Switch