Patent ID: 7927130

Claim:
An electronic apparatus at which at least one detachable module is attached to a casing, provided with a first connector which is attached to a board provided in said casing corresponding to each of said modules and which has a plurality of parallel pins, a second connector which is provided at a surface of each of said modules for connection with said casing and which has receptacles corresponding to said pins, and a monitoring unit which monitors the states of the pins before connection of said first and second connectors, said monitoring unit provided with an emission instructing unit which instructs the emission of light to all of the pairs of said pins and said receptacles of said first and second connectors from one to the other, a pin state detecting unit which detects whether the emitted light has arrived at all of the pairs of said pins and said receptacles to thereby detect the states of the pins, and a pin abnormality detecting unit which determines said pins are abnormal and emits an alarm when the emitted light does not arrive at least at one of said pairs.