ABB Bailey NMMU01 Module Mounting Unit (MMU)

FAQ

Q1: What is the ABB Bailey NMMU01 used for?
A: It is a Module Mounting Unit used to install and interconnect modules in the ABB Bailey Network 90 / INFI 90 control system.

Q2: How many modules can NMMU01 accommodate?
A: It provides 12 module slots.

Q3: Is NMMU01 an electronic module?
A: No. It is a mounting chassis/backplane assembly rather than a standalone processor or I/O module.

Q4: What type of mounting does NMMU01 use?
A: NMMU01 is the rear-mounting version. ABB Bailey also produced NMMU02 as a front-mounting version.

Q5: What functions does the NMMU01 provide?
A: It provides module mounting, power distribution and bus connectivity for the installed Network 90 modules.

Q6: Which control systems use NMMU01?
A: It is associated primarily with ABB Bailey Network 90 and INFI 90 systems.

Q7: What is the difference between NMMU01 and NMMU02?
A: Both are 12-slot Module Mounting Units, but NMMU01 is rear-mounted, while NMMU02 is front-mounted.

Q8: What are the dimensions and weight of NMMU01?
A: Available supplier information indicates approximately 48.3 × 17.8 × 33.0 cm. The weight is typically around 3–4 kg, depending on the exact configuration and packaging.