I needed four of these modules and all are now working correctly, but I had to use a different version(10063)on the DB 8810 and Summit x450a 24x to the one which works on the Summit x250e 48p (10067). The 10063 is both longer and more expensive. Presumably the optics are going to be the same in both versions, so what is the difference between them? Is it that the SFP ports on the x250 can drop down to run at 100Mb, but the ones on the x450 and Black Diamond can only run at 1Gb, so the data have to be buffered within the SFP module?
Even odder, the data sheet for the x450a lists another module, a dual purpose 100 Base-FX/1000 Base-LX one. Ok, those both use the same wavelength, so it's not surprising that such a module should be possible, albeit needing an attenuator and MCP for 100 Base-FX mode. What is odd is that this data sheet lists only d.c. switches as being compatible with this module. Why should the power supply type affect which modules can be used?
Even odder, the data sheet for the x450a lists another module, a dual purpose 100 Base-FX/1000 Base-LX one. Ok, those both use the same wavelength, so it's not surprising that such a module should be possible, albeit needing an attenuator and MCP for 100 Base-FX mode. What is odd is that this data sheet lists only d.c. switches as being compatible with this module. Why should the power supply type affect which modules can be used?