Hot Rods MSD tach adaptor???

I,m currently wiring my coupe and have a MSD6 BTM and MSD blaster coil. I have just picked up a used MSD 8910 tach adaptor . The wiring diagrams online say to connect the white wire on the adaptor to the signal output from the box but I don’t have a white wire on my adaptor. There’s a red and black wire and 2 green ones??

 

This is the instruction file for the 8910 adapter. Any help?
Bob

 

I found some additional information on the Summit page. This might help explain any differences in the installation.
https://www.summitracing.com/parts/msd-8910
Bob

 

Thanks Bob. Looks like I have a 8910-EIS not a 8910. Got the wiring diagram now, thanks again.