I need to purchase 1000BASE-ZX SFPs for a long fiber link between locations. I have an x460 at the main end, and an x440 at the distant end. In looking at the data sheets, only the 10053H (Industrial Temp) model SFPs are listed on the Summit x440 data sheet, but both the 10053 and 10053H are listed on the x460 data sheet. Does this mean that I have to purchase the industrial temp version for the x440? I am a little concerned because I don't want to give these fans any reason to run at high speed.