Keysight M8000 Series of BER Test Solutions Installation Guide 71
Controlling Multiple Instruments 3
 
Figure 52 PC connected to AXIe 5 slot frame
It is also possible to connect a PC to smaller AXIe frame (2 slots) as shown 
in the following figure:
Figure 53 PC connected to AXIe 2 slot frame
All these configurations are controlled by a single instance of a M8070B 
system software.