Along with the EMI/DECbridge 90 advantages of today's UNIBUS systems packaging come some new configuration considerations. The most important of these is the I/O distribution panel (IODP). The DECbridge 90 provides the transition between internal cabling and the external shielded cabling to the peripheral devices. All cables that enter or exit cabinets must pass through the IODP. The I/DECbridge 90 device connections are made with three components — an internal cable that originates at the option module or controller, a shielded external cable from the I/O panel to the peripheral, and a panel insert that mounts in the IODP and joins the internal and external cables. With the IODP, the panel insert provides the shielding and filtering necessary to contain potential interference within the cabinet. The DECbridge 90 is provided as part of the DECbridge 90 system cabinet. The panel insert and internal cable are provided with the specific option. The capacity of the IODP varies with the cabinet and CPU type. The type and style of inserts vary depending on the amount and type of connectors required by each option. Each IODP accepts multiple inserts. Unused DECbridge 90 space is filled with blank inserts to maintain shielding integrity.