DB9 Female   Pin   DB9 Male    DB9 Male   SPECIFICATIONS
Pin
                                                                 RS232      no.    RS485       RS422
                                                         no.                                             Model number            XS203
                                                                 (DCE)
                                                         1        DCD       1       D+          TX+      Baud rate               300 - 115200bps
          RS232 to RS485/422 Converter                   2        TXD       2       D-          TX-                              Port-powered from RS232 (RTS, DTR,
                     Part no. XS203                                         3                   RX+      Power                   TXD). Optional external power: 5 -
                                                         3        RXD
                                                                            4                   RX-                              12VDC
                                                         4        DTR
                                                                            5       GND        GND       Current consumption     < 10mA
                                                         5        GND
                                                                            6      5 VDC       5VDC                              DB9 female connector
                                                         6        DSR
                                                                            7                                                    Pin 7 (RTS) and 8 (CTS) are tied
                                                         7        RTS                                    Interface RS232         together.
                                                         8        CTS       8
                                                                                                                                 Pin 4 (DTR), 6 (DSR), and 1 (CD) are
                                                         9         RI       9                                                    tied together.
This bi-directional combined RS232 to RS485/422                                                          Interface RS485/422     DB9 male / terminal board
converter is port-powered with an optional external                                                                              2-wire RS485 half-duplex and 4-wire
power supply terminal. An internal amplifier                   DB9 Female          DB9 Male              Working mode
                                                                                                                                 RS422 full-duplex
supplies power from the RS232 port without                                                               Standards               EIA/TIA RS-232C / RS485 / RS422
initializing the RS232 interface. If the RS232 port is                                                   Transmission            RS232: Typical: 15 FT
not capable of supplying sufficient power, the                                                           distance                RS485/422: Typical: 4000 FT.
external power supply can easily be connected. It                                                        Static and protection   1500W, 600W/ms
supports 2-wire RS485 and 4-wire RS422                                                                   Handshake / flow
communications of up to 300 - 115200bps. A                                                               control
                                                                                                                                 Automatic Send Data Control
simple and reliable solution for most general and                                                        Certifications          CE, FCC, RoHS ISO 9001 Certified
industrial communication needs.                                                                          Operating Temp.         -13°F to 158°F (-25°C to 70°C)
Extending communication distance with RS422                                                              Operating humidity      5% To 95% - No Condensation
                                                                                                         Dimensions              2.47” x 1.33” x 0.70” (62.8 mm x 33.8
                                                                                                                                 mm x 17.8 mm)
                                                                                                         Warranty                1-year limited warranty
                                                                                                         ECCN                    4A994.a
                                                                                                         Schedule B              8471.80.1000
                                                                                                         HTS                     8517.18.0050
Master/Slave Multi-drop configuration with RS485                                                                            To access technical support, please visit the
                                                                                                                            U.S. Converters website at:
                                                                                                                            www.USconverters.com
                                                                                                                            Here you will find:
                                                                                                                            - Latest drivers and updates for download
                                                                                                                            - Technical tips
                                                                                                                            - Documentation
                                                                                                                            - Configuration support
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