The 12-slot backplane will accommodate a variety of module types in different configurations. I/O modules and power supplies may be placed in any of the twelve (12) positions. This backplane is not designed for use with the SBX-2 or PC-1 modules.

There are three (3) connectors at the far right of the backplane. The two (2) small 8-way connectors are for inter-backplane communication links and the larger 6-way connector is for external power (+5V and +12V DC) if the standard supply is not fitted.

This backplane is designed for surface mounting. Mounting brackets (2 pieces) are supplied for user fitting. Mounting in a 19 rack may be achieved using the alternative MBR-3 rack mounting brackets.