I DO FEEL THIS UNIT IS USED. WE DID POWER IT UP AND IT DOES WORK AND SAY NO PLC CONNECTED. Allen Bradley Dataliner, Cat. No. 2706-E23J16B1, Ser. D, Rev. A, DSPL FRN 1.01, CTRL FRN 2.01.THIS IS A 2 LINE DATALINER W/ REM.I/O, 16K. LET ME KNOW IF YOU HAVE ANY OTHER QUESTIONS ABOUT THIS ITEM WEIGHT TO SHIP IS 9+ POUNDS. THESE CAN BE BOUGHT ONLINE FOR $1,350.00