Bus/Tag cable connections can be seen behind the power cable.
Picture of channel terminator - we need this to correctly signal terminate the 3430 when connected to a host.
Is this the cable? from wikipedia: Bus and tag cable
Breakout cable for host adapter?
Box of controller electronics in our IBM 3430 model A01
IBM 3430 Model A01
At least one is needed as it contains the controller electronics, and bus/tag interface to the system host.
Differences between the operator panels for the A01 and B01
IBM 3430 Model B01
This is missing the large box of controller electronics in the left side of the diagram and therefore needs to be connected to an A01 to be fully functional.