PURPOSE: To obtain a connecting cord for quickly and positively acquiring connecting information of cords for interconnecting a plurality of machine groups or relay boards in an information wiring facility.

CONSTITUTION: Cords for interconnecting machines or relay boards are additionally provided with conductors 4 for collecting information, e.g. electric conductor core wires or optical fibers, having tester connecting terminals 6 and an indicator 5 at the opposite ends thereof. A tester 7 for applying voltage or transmitting light is connected with the tester connecting terminal 6 of the cord and light or sound is transmitted through an indicator 5 on the opposite side to the cord thus acquiring connecting information. Consequently, connecting information of connecting cord can be acquired accurately and positively in information wiring facility, introduction cost can be reduced through the use of cheap connecting cord, and the inventive connecting cord can be introduced easily into an existing facility by simply replacing the cord.