Abstract: A production system (1) has workstations (2), each having a bench (3) with a movable service rail (4). Each service rail (4) is movable to allow very quick configuration of the system (1). Each rail (4) also has an electrical power duct (15) and a pneumatic supply (14) having outlets for production and test apparatus on the bench (3). There is a single switch (17) for each duct 15 and this allows interconnection to an overhead duct system (5). The production apparatus includes tools for stripping cable jackets, for unravelling individual wires (61), for stripping insulation by heating (71) and for applying connectors (104) and for applying a protective sleeve (111). A test system (130) has a controller (132) and a modular test fixture (135) with components which are easily removed and replaced.