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I-7520-Series
RS-232 to RS-485 Converter, 3 kV Isolation
Models In Stock
- Auto Switching Baud Rate, 300 to 115,200 bps
- 3000 VDC Isolation Protection on the RS-485 side
- Power Input, +10 to +30 VDC
- DIN-Rail Mountable
I-7520-Series
From
TWD
5,052
Models In Stock
Product Overview
- Baud Rate 300 to 115200
- Baud Rate Note Max. 1,200 m for at speed 9.6 kbps; Max. 400 m at 115.2 kbps
- Cable Note Belden 8941 (2P twisted-pair cable)/Belden 8942 (4P twisted-pair cable), if different cables are used, the transmission distance may change
- Cable Type 2P Twisted-Pair Cable, 4P Twisted-Pair Cable
- Data Interface Note RS232: TxD, RxD, GND, RS485: Data+, Data-
- Height 4.8 in
- Input Cable Connector Type RS232: 9 - Pin Female D-Sub
- Input Type RS232
- Isolation Three Way Protection: 3000 Vdc
- LED Indicators Power/Communication LED
- Length 1.5 in
- Materials ABS
- Mounting DIN-Rail Mounting
- Number of Channels 1
- Operating Temperature, Max 75 °C
- Operating Temperature, Min -25 °C
- Output Cable Connector Type RS485: 2 Terminal Block 10-Pins, Removable
- Power Consumption 1.2 W
- Relative Humidity 10 to 90% RH, Non-Condensing
- Self Tuner Yes, Asic Inside
- Series ID I-7520-Series
- Storage Temperature, Max 75 °C
- Storage Temperature, Min -30 °C
- Supply Power Type DC
- Supply Voltage 10 to 30 Vdc
- Supported Devices 256 (Without repeater)
- Transmission Distance 4000 ft
- Width 2.83 in
Supported Applications
The Omega I-7520 Series consists of RS-232 to RS-485 and RS-422/RS-485 converters designed for long-distance communication using standard PC hardware. These devices convert RS-232 signals to isolated RS-422 or RS-485 signals, enabling data transmission over extended distances where standard serial cabling is insufficient.
Operating Conditions & Performance
The series operates within an ambient temperature range of -25 °C ~ +75 °C and a storage temperature range of -30 °C ~ +75 °C. Humidity ratings are specified as 10 ~ 90% RH, non-condensing. Communication speeds support ranges from 300 to 115200 bps.
Transfer distances vary by speed: the series supports a maximum of 1,200 m at 9.6 kbps and up to 400 m at 115.2 kbps when using Belden 8941 (2P twisted-pair cable) or Belden 8942 (4P twisted-pair cable). The devices feature a Self-Tuner ASIC inside, ESD protection, and provide 3000 VDC isolated voltage on either the RS-232 side or the RS-485 side depending on the model. Power consumption is rated at 1.2 W with an input voltage range of +10 VDC ~ +30 VDC (Non-isolated).
Configuration Options
The I-7520 Series offers multiple configurations to address specific interface and isolation requirements:
- Interface Support: Models include RS-485 only (I-7520, I-7520A) or combined RS-422/RS-485 support (I-7520R, I-7520AR).
- Cabling Options: Supports 2-wire cabling and 4-wire cabling configurations.
- Housing & Mounting: Units feature a plastic casing made of Fire Retardant Materials (UL94-V0 Level) with dimensions of 72 mm x 118 mm x 35 mm. Installation is via DIN-Rail mounting.
- Connections: RS-232 connectivity uses a 9-Pin Female D-Sub connector, while the serial interface (RS-422/485) utilizes a removable 10-Pin Terminal Block.
- Cover Colors: Available in standard and Gray Cover options (e.g., I-7520 G CR).
The series includes LED indicators for Power and Communication status. Accessories available include power supplies such as the GPSU06U-6 (24 VDC/0.25 A, 6 W) and DIN-KA52F (24 VDC/1.04 A, 25 W with Din-Rail Mounting), repeaters like the I-7510 CR and I-7510A CR, and cabling such as the CA-0915 (9-Pin Male-Female D-Sub Cable, 1.5 m).
Key Product Differences
The series distinguishes models based on interface capability and isolation topology:
- I-7520 / I-7520A: These models provide RS-485 (I-7520) or RS-422/RS-485 (I-7520A) interfaces. The 3000 VDC isolated voltage is located on the RS-232 side.
- I-7520R / I-7520AR: These models provide RS-485 (I-7520R) or RS-422/RS-485 (I-7520AR) interfaces. The 3000 VDC isolated voltage is located on the RS-485 side.
A critical design difference exists between these groups: if power is supplied from a PLC or PC, the I-7520R/AR models should be used to maintain isolation; otherwise, using other configurations may break the isolation. Additionally, on I-7520A/I-7520AR models, RS-422 and RS-485 cannot be used simultaneously.
PDFs & Manuals
