However, Tottenham's second string drew level with two goals inside three minutes through David Hutton on 32 minutes and Tomas Pekhart just 9 minutes before the break.
Adel Taarabt gave the vistors a 3-2 lead just eight minutes into the second period but O'Connor grabbed his second of the match to earn Blues a point at Damson Park.
Martin Taylor, playing his first game since his now infamous three game suspension, completed the full ninety minutes for Terry Westley's side.
Blues Res: Doyle, Wilson, Taylor, Queudrue, Schmitz, De Ridder, Sammons (O'Brien, 56), Mutch, Aydilek (Joyce, h/t), O'Connor, Jervis (Sheldon, 77) Subs not used: Lyness, Hubbins.
Spurs Res: Button, Gunter, Archibald-Henville, Martin, Hughton; Fraser-Allen, Mtandari, Kasim (Hutchins, 76), D Hutton (Obika, 76), Pekhart, Taarabt Subs not used: Jansson, Olsen, Mason