Beijer Electronics RBC EN - Manual (Page 7)

Hardware
1.1.4 USB Interface
The USB interface of the RBC module cannot be accessed directly by a plug.
In an EPC, the USB interface is built-in and internally connected to the USB root
hub of the PC. This means that if the PC is running, the USB interface is always
accessible.
In an external MTe monitor, the USB interface is accessible if the monitor is
connected to the PC by a USB cable. In detail a 4-Port USB 2.0 hub is accessible to
which the RBC module and other monitor components are connected.
If an MTe XXX E (Ethernet) is connected by an Ethernet cable to a PC, the RBC
is accessible as a USB device too, because a virtual USB connection exists using
the Ethernet hardware.
Beijer Electronics, MAEN986C 7