RE: pentax/nikon sync cords compatible?

[Alan Chan]

Only the centre contact is located the same. It means you can fire the 
flash, but no extra communication, no auto zoom, no ttl or anything else. 
Just plain manual focus. So they are not compatible.

Alan Chan
http://www.pbase.com/wlachan
Could anyone who uses both Pentax and Nikon equipment please let me know 
whether the pentax 5p type cord (with hotshoe adapters) and the SC-17 type 
nikon cords are interchangeable. The contacts seem to be in the same 
configurations. Are they?