Abstract: A heater unit for heating equipment is provided which includes: a heater housing disposed on a bottom portion of the equipment in such a manner as to firmly stick thereto and having a heat source; a buffer space portion formed between the bottom portion of the equipment and an upper portion of the heater housing for equalizing heat generated in the heater housing; and a plurality of heating modules disposed in a dispersed fashion within the heater housing.

Abstract: An electronic equipment has a housing, and a state display section which displays a state of the electronic equipment. The state display section is provided at an edge line portion of the housing. The housing has a concave portion at the edge line portion, and the state display section is provided at the concave portion.

Abstract: An input-output unit for communicating between an industrial control equipment and field devices controlled thereby, comprising a card accommodating chamber, provided with a row of slots which accommodate input-output cards which convert signals handled by the industrial control equipment and the signals handled by the field devices; a terminal block provided with two or three terminals per slot, to which signal wires connected to the field devices are connected and a case, on the front of which the card accommodating chamber and the terminal block are mounted in correspondence with the terminals and slots, whereby a compact input-output unit is realized with good heat dissipation, easy to assemble, and with increased density of mounting.