If your modem displays the vendor code you'll be able to tell whether it's a Conklin or ASAM. Conklins are remote cabinets while ASAMs can be housed in a cabinet or back at a main exchange building.

 

 

Also from what I've seen Conklin upstream rate usually maxes out at 832 kbps while ASAM will be 896 kbps. In both cases they will obviously only sync ADSL1 profile.