Yes it's normal. Rubber sleeved, shorter pin at the bottom - plain, longer pin at the top.
I read somewhere that the short pin should be the "trailing" i.e. second pin in the direction the brake disc rotates...so as front calipers are always flipped the other way around to the rears like this F O) (O R the pin will be at the top on a front caliper. Can anyone confirm this? I didn't notice which way up they were during disassembly and there's a lot of conflicting information elsewhere.
PS ePer is no help as it seems to expect you to buy the whole bracket with the pins in it... no sub assembly showing exploded parts.