Your question about Siemens S30810-Q2960-X200 CBMOD Hicom 150 E OfficePro

The CBMOD board is the central control board for Hicom 150E officePro with a DRAM memory of 4MB, on which all central control and switching functions are executed. If necessary, the following boards can be inserted into the corresponding slots of the CBMOD:

• CGMC (Clock Generator Module Combined), optional
• Flash Card with release specific Systemsoftware (APS). The following release specific variants are available: 
• •   FMC (8 MB) - Rel.1.0
  •   FMC (10 MB) - as of Rel.2.2 (optional with Security Package)
• Modem Card IMOD, optional