PLANET ISW-621T This is an IP30 Slim Type 4-Port Industrial Ethernet Switch + 2-Port 100Base-FX(SC) which support and operate under WIDE-TEMPERATURE of -40 to 75 C. This is a right products for Transportation, Manufacturing, Security and Surveillance network deployments in those harsh environments due to it's high level of immunity against electromagnetic interference and heavy electrical surges which are usually found on plant floors or in curb side traffic control cabinets. This also has four 10/100Base-TX auto-negotiation ports and two 100Base-FX ports where in it is equipped with 100Base-FX multi-mode SC interfaces for transmission distance up to 2km. 

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