I-7520A CR
RS-232 to RS-422/RS-485 Converter. Supports operating temperatures between -25 to 75°C
- 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-232/422/485 Data Line
- Power Input of +10 ~ +30 VDC
- Supports Operating Temperatures from -25 °C ~ +75 °C
- DIN-Rail
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-422 and 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-422 or RS-485 signal with no need to change any hardware or software. The I-7520/I-7520A 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.
Interface
Serial Interface:
RS-232 TxD, RxD, GND
RS-422: TxD+, TxD-, RxD+, RxD
The RS-422 and RS-485 cannot be used simultaneously
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 VDCIsolated Voltage: On RS-232 side
Connection:
RS-232: 9-Pin Female D-Sub
RS-422/485: Removable 10-Pin Terminal Block
LED Indicators
Power/Communication: Yes
Power
Input Voltage Range: +10 VDC ~ +30 VDC (Non-isolated)
Power Consumption: 1.2 W
Mechanical
Casing: Plastic
Flammability: Fire Retardant Materials (UL94-V0 Level)
Dimensions (W x H x D): 72 mm x 118 mm x 35 mm
Installation: DIN-Rail
Environment
Operating Temperature: -25 °C ~ +75 °C
Storage Temperature: -30 °C ~ +75 °C
Humidity: 10 ~ 90% RH, non-condensing