SIMATIC S7-200, DIGITALEINGABEEM 221, POTENTIALGETRENNT8DE, AC 24V,NUR FUER S7-21X CPU,** AUSLAUFERZEUGNIS **SIMATIC S7-200, EM 221 DIGITALINPUT MOD., OPTICALLY ISOLATED8DI, 24 V ACFOR S7-21X CPU ONLY,* PRODUCT TO BE DISCONTINUED *