The object of the present invention is to provide an inspection apparatus which enables the speed-up and high efficiency of an inspection as well as the flexibility to the modification of an assembly line. Emulated data for use by the rules-based diagnostic system can be generated that includes a trouble ticket to emulate a problem associated at least one of Layer 1 and Layer 2 network services and includes network information associated with the problem. The fastening devices are provided with first locking devices capable of receiving second locking devices provided at the ends of seating beams intended to be mounted between two opposite seating beam pillars on the joists. Thus, gate pulses step functions, binary waveforms and the like may all be generated from a single function, where they entire output range of the function is defined over a continuous input domain. A pair of gas-assisted spring members are provided between the door member and the housing. This low-pressure mercury lamp is a 12 W lamp alternative to a 60 W incandescent lamp, and the bulb wall loading under steady state illumination is set at 0.