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-sale application.
RS-232 up to 4 miles (6.4 km), at 9600 bps, over 4-wire 
connection.
The ME800A-R4 is backward 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 interface in use today. means 
you can use your SHM–C in RS-232 installation—industrial; 
security systems; UNIX?, DEC2, and HP? workstation connectivity;
and more.