SM332 EXTEND MODULE (6ES73325HD010AB0) SIMATIC S7-300, ANALOG OUTPUT SM 332, OPTICALLY ISOLATED, 4 AO, U/I; DIAGNOSTICS; RESOLUTION 11/12 BITS, 20 PIN, REMOVE/INSERT W. ACTIVE, BACKPLANE BUS AND SIMATIC S7-300, FRONT CONNECTOR(6ES73921BJ000AA0) FOR SIGNAL MODULES WITH SPRING CONTACTS, 20-PIN