MCV11-DA 8-Kbyte CMOS Memory HP Keyboard f. HP2392A, US Layout PROM/ROM module with 16 sockets; accommodates 24-pin devices MRV11-D PROM/ROM module with 16 sockets; accommodates 24- and 28-pin devices HP Keyboard f. HP2392A, US Layout Ethernet communications controller HP Keyboard f. HP2392A, US Layout 8-line asynchronous multiplexer (modern control) DZQ11-M 4-line asynchronous multiplexer (modern control) DLVJ1-M 4-line asynchronous interface (modern control) HP Keyboard f. HP2392A, US Layout Single-line asynchronous interface (modern control) DMV11-M Single-line, synchronous interface (EIA RS-232-C/CCITT V. 28, CCITT V. 35, or EIA RS-423/RS-449) HP Keyboard f. HP2392A, US Layout Single-line, synchronous interface (integral modern)