"Jon has taken a massive pay cut to come here," said Palmer. "But he has trained with us and seen what we are doing and wants to be a part of it."
Jon still lives in Nottingham and the move means he dosn't have to re-locate, no doubt a deciding factor in his decision to join the Stags.
Meanwhile the signing of goalkeeper Kevin Pressman has been completed, with the ex-sheffield Wedensday stopper joining for a year.