RS-232 to RS-485 Converter (For PLC use only). Supports operating temperatures between -25 to 75°C.

I-7520R - RS-232 to RS-485, Isolation site RS-485

RS-232 to RS-485 Converter (For PLC use only). Supports operating temperatures between -25 to 75°C.

  Price:  $129.00  


I-7520r diagramRS-232 to RS-485 Converter (For PLC use only)

  • Input : RS-232 protocol to female 9 pin connector
  • Output: RS-485 protocol
  • Speed: "Self Tuner" inside, auto switching baud rate, 300~115200 BPS
  • 256 modules max. in one RS-485 network without repeater
  • 2048 modules max. in one RS-485 network with repeater
  • Isolation voltage: 3000VDC at RS-485 side
  • Repeater request: 4,000 feet or over 256 modules
  • Power consumption: 2.2W max.
  • Din Rail Mount
This model is used for PLC user. The design of isolation between I-7520 and I-7520R is different. If the user wants to supply the power from the PLC they should use the I-7520R; Otherwise the isolation will be broken. Please refer to the manual I-7000 bus converter for more detailed information.


I-7520R Interface RS-232:TxD, RxD, GND
RS-485: Data+, Data
2-wire cabling/4-wire cabling Belden 8941 (2P twisted-pair cable)/ Belden 8942 (4P twisted-pair cable),
When different cables are used, the transmission distance may change
Transfer distance Max. 1,200 m for speed 9.6 K bps; Max. 400 m for speed 115.2 K bps
Supports Max devices Maximum of 256 devices(Without repeater).
Self-Tuner Asic inside Yes.
Speed 300~115200 bps
ESD Protection Yes.
Isolation voltage 3000 VDC at RS-485 side
Connection DB9(Female to RS-232); Removable 10-pin Terminal Block (For RS-422/485)
LED Display
1 LED as Power/Communication Indicator
Input Voltage Range +10 ~ +30 VDC (Non-isolation)
Power Consumption 0.05 A @ 24 V = 1.2 W, +/-5 %
Mechanical Plastic
Flammability UL 94V-0 materials
Dimensions 122 mm x 72 mm x 33 mm
Installation DIN-Rail
Operating Temperature -25°C ~ 75 °C
Storage Temperature -30°C ~ 75 °C
Ambient Relative Humidity 10% ~ 90% RH, non-condensing

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