• XSA-RS485 communication barrier XSA-RS485 communication barrier

XSA-RS485 communication barrier

Item No: DYT12168225

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XSA-RS485 communication barrier

·   RS485 signal, intrinsically safe input. The RS485 signal is converted to an isolated RS485 (or RS232) signal. Terminal supply or DIN rail power supply is available. 

·    The XSA-RS485 communication barrier is used to convert the RS485 signal to the hazardous area of the field into an RS485 (or RS232) signal for transmission to the safe area to realize two-way communication between the dangerous area and the safe area. The product requires independent power supply and is isolated between the power supply-input-output.

·   Hazardous area signal: RS485 digital signal.

·   Safety zone signal: RS485 digital signal (or RS232 digital signal).

·   Signal transmission rate: ≤ 56kbps. Transmission delay: ≤10uS.

·   Small plug-in structure with 35mm DIN standard rail card mounting. Screw terminal, the wiring is fastened by M3 screw.

Model /Selection Table:


    Model and code


     Basic model


    RS485 communication barrier

     Signal conversion


    RS485 signal is converted to isolated RS485 signal


    RS485 signal converted to isolated RS232 signal


    Special order

     Power supply voltage


    Power supply (terminal) 2032VDC


    Power supply (rail)2032VDC

     Service Code


    Product Service Code

   Selection example 
   Example 1:  XSA-RS485-1-V1-QC9A ......(RS485 communication safety barrier, RS485 signal to RS485 signal, terminal power supply 20 ~ 32VDC)
   Example 2:  XSA-RS485-2-V1-QC9A ...... (RS485 communication safety barrier, RS485 signal to RS232 signal, terminal power supply 20~32VDC)
   Example 3:  XSA-RS485-1-V2-QC9A ...... (RS485 communication safety barrier, RS485 signal to RS485 signal, rail supply 20~32VDC) 
   Optional accessories  
   Dedicated power supply DIN rail: PSDR-3000 series


Technical data:








    Housing Material / Color

    PC(Polycarbonate)+PPT Material / Black Gray

    Protection level



Environmental conditions:

    Ambient temperature


    Ambient temperature (storage or operation)


    Ambient humidity (operation)

    5~95RH (no condensation)


 Input (intrinsically safe):

   Signal Type

   RS485 Digital Signal

   Distribution voltage

   9V distribution voltage, current ≤100mA; 12V distribution voltage, current ≤60mA


Power supply:

   Signal type

    RS485 digital signal; RS232 digital signal

   Signal level rule

    Standard RS485 differential level; standard RS232 logic level

   Signal transmission rate


   Transmission delay



Power supply:

   Rated supply voltage


    Power supply voltage range


   Maximum current consumption



General parameters:

    Electrical isolation

     Input-output-power supply: 2500V AC RMS / 1 minute

    Electromagnetic compatibility (EMC)

     in accordance with IEC 61326-1 (GB/T 18268), IEC 61326-3-1

    LED status indication

     Green LED (power indication)

    Applicable occasions

     Installed in a safe place, can be connected with intrinsically safe equipment in Zone 0, Zone 1, Zone 2; IIC, IIB, IIA; T4~T6 danger zone

    Field device suitable for connection

     RS485 communication interface

    Mounting method

    Horizontal or vertical mounting, can be mounted on standard 35mm DIN rail (or dedicated busbar backplane powered DIN rail)


Wiring parameters:

   Rigid conductor cross section (min/max)


   Flexible conductor cross section (min/max)


   Minimum Conductor Cross Section (AWG))


   Maximum Conductor Cross Section (AWG) 14


   Stripping length


   Connection type

    M3 screw fastening connection

   Screw torque

    Up to0.6Nm


Explosion-proof parameters:

   Maximum safety voltage (Um)


   Maximum output voltage (Uo)


   Maximum output current (Io)


   Maximum output power (Po)


   Maximum external inductance (Lo)


   Maximum external capacitance (Co)




    CE certification

   in line with CE standards

   National Explosion-proof Electrical Product Quality Supervision and Inspection Center (CQST) certification

   [Ex ia Ga] IIC conforms to GB 3836.1, GB 3836.4, GB 3836.20

Product drawing / terminal wiring diagram:


Product Image Details

XSA-RS485 communication barrier 1

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