Thats what the colour codeing seems to suggest, great if you're wiring to twisted pairs cat5 type cable, damed confusing for what you're trying, think the makers are trying to be oh so helpful connecting to the "odd" sequence in the rj45 plug itself for you, go for it, providing the telephone wires are sorted you should'nt do any damage, it just wont work!! Still would be nice to meter it to confirm beyond doubt.
rickity