SBX Basic KSU R3
Main Control Unit provides expansion to 3 lines in X 8 phones
The MBU controls the communication between the peripheral interfaces, supervises all
resources in the system, controls the gain adjustment of the PCM signal, generates the
system tones, and manages system call processing.
This MBU performs all the same functions as the MBU shown above. This unit was
modified to accommodate expanded capabilities such as the T1/PRI board and the 3x8
The MBU is installed in the KSU, and it provides various types of connectors and RJ11
modular jacks for the connection of peripheral boards and miscellaneous functions.
This product was added to our catalog on Wednesday 08 January, 2014.