Black Box IC623A-F
型号:IC623A-F
产品描述：Async RS-232 to RS-485 Interface Converter, DB9 Female to RJ-11
详细描述:The RS-232 connector is DB9 female; the RS-485 connector is RJ-11;
 other connectors are aailable (see Related Items).
Built-in silicon avalanche diode surge protection against data loss and
 equipment damage from transient surges.
You can also "fine tune" impedance and "echo" characteristics for your 
individual application.
For configuration, the converter features two internal  DIP
switches.