> On 21/02/2021, at 11:15 PM, Chen Jiang <[email protected]> wrote: > > Hi! Experts > > I need some 10GE LR optics and found 2 options in Juniper : SFPP-10GE-LR-IT > and SFPP-10GE-LR. > > From Juniper Hardware Compatibility Tool I can't find a difference > except SFPP-10GE-LR-IT has a widely operating temperature range > and SFPP-10GE-LR-IT price is lower. So it seems SFPP-10GE-LR-IT is a more > attractive choice. > > Could you pls shed some lights on this and thanks for your help.
Have a look on the second tab of the hardware compatibility tool - the supported platforms. -IT is only supported on ACX710, and that’s the only one the ACX710 supports (i.e. it doesn’t support SFPP-10GE-LR). Why? Not sure. If I had to guess, it’s because the operating temp range of the ACXs are wider than other boxes on the low end and that matches the -IT model.. Though I note that the older ACX platforms (500, 1k, 2k, 4k at least) can work at -40c as well, and at least some of those can take SFPP-10G-LR. Maybe whoever the ACX710 was made for (a few things about the 710 suggest to me at least that they were made for a specific customer) is really strict about SFP specs. They are *much* cheaper list price, huh? Like, 1/8th. Odd. There seems to be -IT variants of a few SFP+s. -- Nathan Ward _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
