UDS1100IAPEXTERNAL DEVICE SERVER9-30 VDC/9-24VAC BARREL CONN1.5 W MAXLED IND256 KB ZERO WAIT STATE SRAM MEM2MB FLASH MEMRS232/RS422/RS485 SW-SELECT2&4 WIRE SUPPORTCTS/RTS SIGNALS7 OR 8 DATA BITSDB24F DCE SERIAL PORT