An implantable active fixation cardiac lead is disclosed that includes an elongated lead body having opposed proximal and distal end portions and having an interior lumen extending therethrough, an axially rotatable extendable and retractable fixation helix operatively associated with the distal end portion of the lead body, a rotatable in-line quadripolar connector assembly operatively associated with the proximal end portion of the lead body and including an elongated rotatable pin electrode having opposed proximal and distal end portions, and an elongated torque transmitting conductor coil extending through the interior lumen of the lead body and having a proximal end portion connected to the distal end portion of the rotatable pin electrode and a distal end portion connected to the rotatable fixation helix, to facilitate manual activation of the fixation helix.
