6DD1682-0BC3，西门子，西门子通讯板，SIMADYN D SUBRACK SR12.3 115/230V ACINTEGRATED FAN 12 SLOTS , L- AND C-BUS

6DD1610-0AG0，西门子，西门子通讯板，SIMADYN D MEMORY SUBMODULE MS4 512 KBYTES EPROM, 1 WAIT STATE

6DD1682-0BC0，西门子，西门子通讯板，SIMADYN D SUBRACK SR24.1 24V DC INTEGRATED FAN 24 SLOTS , L- AND C-BUS

6DD1610-0AF1，西门子，西门子通讯板，SIMADYN D MEMORY SUBMODULE MS31 256 KBYTES EPROM

6DD1682-0BB1，西门子，西门子通讯板，SIMADYN D MODULE SUBRACK SR6-V 1 50/60HZ 230 V AC 6 EP, L-BUS W X H X D: 225 X 340 X 280

6DD1607-0EA2 ，西门子 ，西门子通讯板，SIMATIC S7-400, COMUNICATION EXPANSION MODULE EXM 448-2 WITH 2 SIMOLINK INTERFACES