产品描述：1781-Series of Slim input and output modules and solid-state relays provide compatibility with a variety of manufacturers’ miniature modules. Slim modules have a hold-down screw, and can be used in mounting boards where vibration and shock are not of concern.
产品名称：Mini I/O package designed for board-mount applications
产品描述：1781-Series of Miniature Input and Output Modules and Solid State Relays provide compatibility with a variety of manufacturers’ miniature modules. Miniature modules do not have a hold-down screw. They can be mounted in mounting boards where vibration and shock are not of concern. They can also be soldered into printed circuit boards, using hand or wave soldering techniques.
产品描述：The Classic design has the same footprints as the de facto industry standard 0.6” style I/O modules. They have a hold-down screw, and can be used in mounting boards where shock and vibration are present
产品描述：1781-Series Quad Modules are available in all of the field voltages as the 1781-Series of Slim Modules or the WRC4-Series of modules. They provide four I/O circuits in one package with an integral LED for each circuit.
产品描述：Choose the right mounting board for your WRC Discrete I/O Modules from the table below. Mounting options include the traditional panel mount swaged stand-off, as well as the convenient DIN-rail mounting board.
Choose the logic-side connection to meet your application from card-edge connector, 50-conductor header connector, or terminal screw for point-to-point wiring.