The XVME-200/290 are VMEbus-compatible Digital I/O Modules with 32 channels of TTL-level I/O, as well as two 24-bit timers. The XVME-200 is a single-high (3U) VMEbus module with front panel I/O. The XVME-290 is a 6U VMEbus module with the I/O routed to the VMEbus P2 connector.