BLACK BOX ME800A-R4

产品名称：BLACK BOX ME800A-R4                                                               型号：ME800A-R4                                                                              品牌：BLACK BOX 描述：    Ideal for point-of-sale application. RS-232 up to 4 miles (6.4 km), at 9600 bps, over 4-wire  connection. The ME800A-R4 is backwards compatible with the ME800A-R3. 规格： At a maximum speed of 115.2-kbps you can go up to 4000 feet. Must be used in pairs. RS-232 is the most common erial interface in use today. This means you  can use your SHM–C in RS-232 installation—industrial application; UNIX?, DEC2, and HP? workstation connectivity; and more. Choose our 4-Wire SHM–C Async to  data up to 4 miles (6.4 km). Run loopback tests simply by pressing a front-panel button. Open the flip-top  lid for quick DTE/DCE selection. Transformer and optical isolation protect your data from electrical  interference.