How to Distinguish T568A and T568B of RJ45 Ethernet Cable Wiring?
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SFP-5040-WB - Fast Ethernet OC3 or STM-1 BiDirectional single strand WDM SFP transceiver, Tx:1550nm/Rx:1310nm, type B, max range 40Km, single LC connector
A Distinction with a difference - T568A or T568B? - DoItForMe Solutions