The A11 VME workstation provides all essential signals such as Ethernet, SCSI, mouse/keyboard, CompactFlash, COM1/COM2 and PC-MIP at the front panel, so that you can often do without rear I/O. For applications that still require the signals in the system, MEN offers a standardized rear I/O adapter (optionally for 3-row VME and 5-row VME). In addition to SCSI, Ethernet and COM1/COM2 signals the AD39 adapter also provides a parallel port and COM3/COM4 interfaces. The AD39 adapter is plugged directly on the VME P2 connector of the A11 and leads the rear-panel I/O signals to ribbon-cable connectors.