A cable management panel including a chassis, a drawer, and an open-drawer locking arrangement. The open-drawer locking arrangement preventing inadvertent closing movement of the drawer relative to the chassis. The open-drawer locking arrangement including an activation arm accessible from the front of the drawer and a locking piece located at the rear of the drawer. The activation arm moving in a linear direction to engage the locking piece, causing the locking piece to rotate from a locking position to a non-locking position.