6DD 1611-0AG0
Board MM4 is used in the SIMADYN D system as general RAM memory board on the local- and communications bus for 32-bit processor boards. The 32-bit processors ( PMxx, PTxx ) can communicate with one another via the MM4 board, whereby the MM4 is inserted directly to the right of the master processor.

There are three known variants:

  • Edition 1 Memory module MM4 - 04.93
  • Edition 2  Memory module MM4 - 09.94
  • Edition 3 Memory module MM4 - 05.95
Siemens Teleperm XP (T2000)