RS-232 to RS-422/485 Converter with 15KV Surge Protection & 2.5KV Optical Isolation

The EX-47900IS RS-232 to RS-422/485 converter with 15KV ESD surge protection and 2.5KV optical isolation, can be used for any PC, workstation or server with an RS-232 interface. The EX-47900IS is equipped with a 9 pin female connector that you can connect directly to your RS-232 serial port. It converts unbalanced, full-duplex RS-232 signals to balanced full or half-duplex RS-422 / 485 signals. An adapter from 9 pin connector to 5 pin terminal block is supplied with the EX-47900IS.

Interface: RS-232

• Signal: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• Loop Back Wiring: RTS to CTS, DTR to SDR and DCD 

Interface: RS-422/485

• Two modes are selectable: 4-wire RS-422 (TXD+/-, RXD+/-, Half-duplex) / 2-wire RS-485 (Data+/-, Data+/-, Full-duplex)
• ATTA: Supports RS-485 Auto Transceiver Turn Around Feature, Supports Echo Mode for RS-485 mode
• 15KV ESD Surge Protection for all line and 2.5KV Optical Isolation
• Terminator: 120 Ohm, can be enabled/disabled by DIP switch
• Port-powered from RS-232 Lines, external power source supported, but not required in most cases

Packaging contents:
EX-47900IS, 9 pin to 5 pin Terminal Block, USB power cable, 5V/2A power supply, Manual