6DD1841-0AC1，西门子，西门子通讯板，SIMADYN D STANDARD CONFIGURATION SW2 ANGLE SYNCHRONISM CONTROL MEMORY MODULE FOR PT1 TECHNOLOGY BOARD W/O CS51 INTERFACE BOARD

6DD1841-0AC0，西门子，西门子通讯板，SIMADYN D STANDARD CONFIGURATION SW2 ANGLE SYNCHRONISM CONTROL MEMORY MODULE FOR PT1 TECHNOLOGY BOARD AND CS51 INTERFACE BOARD

6DD1682-0BB0，西门子，西门子通讯板，SIMADYN D SUBRACK SR6 230V AC NATURAL CONVECTION 6 SLOTS , L-BUS

6DD1607-0EA1，西门子，西门子通讯板，SIMATIC S7-400, COMUNICATION EXPANSION MODULE EXM 448-1 WITH PROFIBUS-DP AND SLB F. SIMOLINK INTEGRATED

6DD1841-0AB2，西门子，西门子通讯板，SIMADYN D STANDARD CONFIGURATION SPEED/TORQUE CONTROL ON MEMORY SUBMODULE FOR PT1 TECHNOLOGY BOARD

6DD1841-0AB3，西门子，西门子通讯板，SIMADYN D STANDARD CONFIGURATION SPEED/TORQUE CONTROL ON MEMORY SUBMODULE FOR PT1 TECHNOLOGY BOARD