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ICPDAS I-7520 - RS-232 to RS-485 converter
Isolated RS-232 to RS-485 Converter
● Auto Switching Baud Rate, 300~115200 bps
● 3000 VDC Isolation Protection on the RS-485 side
● Transmission Speed of up to 115200 bps
● ESD Protection for the RS-232/485 Data Line
● Power Input of +10 ~ +30 VDC
● Supports Operating Temperatures from -25 °C ~ +75 °C
● DIN-Rail Mountable
Most industrial computer systems provide standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range, and networking capabilities. The RS-485 standards overcome these limitations by using differential voltage lines for data and control signals, which transparently converts RS-232 signals into isolated RS-485 signal with no need to change any hardware or software.
The I-7520 lets you easily build an industrial grade, long-distance communication system using standard PC hardware.
The design of the isolation between the I-7520 and the I-7520R/AR is different. If the user wants to supply power from the PLC/PC, the I-7520R/AR should be used, otherwise the isolation will be broken. Refer to the I-7000 bus converter manual for detailed information.
Serial Interface RS-232 | TxD, RxD, GND |
Serial Interface RS-422 | - |
Serial Interface RS-485 | Data+, Data- |
2-wire Cabling/4-wire Cabling | Belden 8941 (2P twisted-pair cable)/Belden 8942 (4P twisted-pair cable), if different cables are used, the transmission distance may change |
Transfer Distance | Max. 1,200 m for at speed 9.6 kbps; Max. 400 m at 115.2 kbps |
Max. Devices Supported | 256 (Without repeater) |
Self-Tuner Asic Inside | Yes |
Speed | 300 ~ 115200 bps |
ESD Protection | Yes |
3000 VDC Isolated Voltage | On RS-232 side |
Connection RS-232 | 9-Pin Female D-Sub |
Connection RS-422/485 | Removable 10-Pin Terminal Block |
Power/Communication | Yes |
Input Voltage | +10 VDC ~ +30 VDC (Non-isolated) |
Power Consumption | 1.2 W |
Casing | Plastic |
Flammability | UL94-V0 |
Dimensions (w x h x d) | 72 x 118 x 35mm |
Installation | DIN-Rail |
Operating Temperature | -25 °C ~ +75 °C |
Storage Temperature | -30 °C ~ +75 °C |
Humidity | 10 ~ 90% RH, non-condensing |