The MBLS-132-1 is a 32-channel bi-level (on/off) multiplexer module for use in TTC’s MEDAU/MCDAU/MWDAU-2000 series products. The module is compatible with stack operation of up to 20 Megabits/second. It can accept single-ended voltages from discrete devices such as switches or relays, or logic levels from digital devices, and encode these levels into data words for transmission in the system PCM output format.