A cam activation tool for terminating a fiber optic cable within a stub fiber connector assembly having a housing containing a ferrule holder with a keying structure externally exposed at a front of the connector housing, the ferrule holder containing a ferrule on which an optical fiber stub and field fiber can be terminated by actuation of a cam actuated clamping device, and a backbone, the cam activation tool comprising: a base portion having a first upstanding cradle member for supporting a front end of the fiber optic connector assembly and locking rotation of the ferrule holder; a second upstanding cradle member for supporting a rear end of the fiber optic connector assembly and locking rotation of the backbone; a retaining arm, a cam activation tool handle assembly; and rotation stops that limit rotation of the cam activation tool handle assembly relative to the base to a predetermined angular range; the cam activation tool handle assembly including an outer bearing surface that is rotatably supported by the retaining arm; a through hole sized to receive the optical fiber stub and an outer periphery of the cam therethrough; a cam interface that mates with a cam activation profile of the cam to lock movement of the cam with movement of the cam activation tool handle assembly when the cam is inserted into the through hole thereby permitting motion of the cam relative to both the ferrule holder and the backbone; and a grip portion that enables rotation of the cam activation tool handle assembly by a user between a first de-activated position in which the optical fiber stub and field fiber are not terminated by the stub fiber connector assembly and a second activated position in which the optical fiber stub and field fiber are terminated by actuation of the cam activated clamping device. a base portion having a first upstanding cradle member for supporting a front end of the fiber optic connector assembly and locking rotation of the ferrule holder; a second upstanding cradle member for supporting a rear end of the fiber optic connector assembly and locking rotation of the backbone; a retaining arm, a cam activation tool handle assembly; and rotation stops that limit rotation of the cam activation tool handle assembly relative to the base to a predetermined angular range; the cam activation tool handle assembly including an outer bearing surface that is rotatably supported by the retaining arm; a through hole sized to receive the optical fiber stub and an outer periphery of the cam therethrough; a cam interface that mates with a cam activation profile of the cam to lock movement of the cam with movement of the cam activation tool handle assembly when the cam is inserted into the through hole thereby permitting motion of the cam relative to both the ferrule holder and the backbone; and a grip portion that enables rotation of the cam activation tool handle assembly by a user between a first de-activated position in which the optical fiber stub and field fiber are not terminated by the stub fiber connector assembly and a second activated position in which the optical fiber stub and field fiber are terminated by actuation of the cam activated clamping device.