AOC stands for Active Optical Cable, which means it’s really 4 SFP+ and a qsfp plus intermediate fiber all permanently attached.   1M is the length, 1 meter.

This is distinct from DAC (Direct Attach Cable) which is all copper (you don’t want these, fiber for one thing isolates ground/emi)

This cable won’t work for you without an intermediate switch (bad) because they both end in male SFP plug interface.

However, if you just need to use 10g of the 40g port, you can do it much cheaper and easier with just this part:

https://www.fs.com/products/72582.html

-Ben Cannon
CEO 6x7 Networks & 6x7 Telecom, LLC 



On Jan 8, 2020, at 11:09 AM, Randy Bush <randy@psg.com> wrote:

i am not a fiber/sfp/... geek, so clue bat please

on my left, i have a delta 9020SL running arcos, female 40g qsfp

on my right, i have incoming 10g 1310nm single mode from the seattle
internet exchange.  it is currently into a redstone 10g sfp

   NAME                VALUE
   ---------------------------------
   SwPort              1
   Status              PRESENT
   Valid               True
   Vendor              FiberStore
   Model               SFP-10GLR-31
   Serial-Number       G1804021292
   Type                SFP
   Module-Type         10G_BASE_SX
   Media-Type          FIBER
   Module-Capability   F_10G
   Length              255
   Length-Description

which i am swapping out for the delta 9020

so i am look at something such as https://www.fs.com/products/30900.html
except i do not understand active/passive, AOC1M, etc

thanks in advance

randy