It
is possible to have more MPB boards than DS30X links.
The number of MPB boards installed on the server depends on the number
of multimedia processing units (MPUs)
required to support the various media types.A Nortel Networks proprietary voice processing board that is installed inside the CallPilot tower or rackmount server. For Meridian 1 and Succession 1000 systems, it also provides the hardware connection between the CallPilot server and the MGate card on the switch.
It
is possible to have more MPB boards than DS30X links.
The number of MPB boards installed on the server depends on the number
of multimedia processing units (MPUs)
required to support the various media types.
Example
An MPB16-4 board provides up to 48 MPUs. To provide 55 MPUs, you need 2 MPB16-4 boards. The single DS30X link is connected to the MPB16-4 board in the lowest-numbered slot of the CallPilot server. The second MPB16-4 board has no link, and is present only to provide additional MPUs.