black box IC280A 
型号: IC280A 
产品描述:Industrial RS-232 to RS-485/422 Converter  
Further Details :  UL? approved.
8-kV contact; 15-kV air.
Built-in switchable bias and termination.
Converts unbalanced half- or full-duplex RS-232 signals to balanced 
full-duplex RS-422 or 2-wire half- or 4-wire full-duplex RS-485.
Ruged IP30-rated metal case.
Supports wide range of data rates.
Include mounting ears for attaching to a panel.
Can also be conveniently mounted on rail with optional clip (DR100).