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Product description: AN3485 - RS232 / RS422 / RS485 communication module for FPGA and SoC boards
The ALINX AN3485 module allows you to connect an FPGA development board or SoC to devices using the RS232 , RS485, and RS422 standards . The MAX3232, MAX3485, and MAX3490 chips handle level conversion, while the 3.3V TTL signals are output to a 40-pin female connector . The RS232 interface uses a standard male DB9 connector and supports speeds up to 120 kbps . Two RS485 and two RS422 channels operate at speeds up to 500 kbps and are available on convenient screw-type connectors. Built-in 120 Ω termination resistors can be jumpered to help adapt the bus over longer distances. The RS485 and RS422 lines also feature ±15 kV ESD protection. A wide operating temperature range from -40°C to 85°C allows the module to be used in prototypes and industrial systems.
AN3485 - RS232 / RS422 / RS485 communication module for FPGA and SoC boards.
The AN3845 module includes one RS232 interface, two RS485 communication interfaces and two RS422 interfaces.
Main features of the ALINX AN3485 module
- Support for three communication standards: cooperation with devices equipped with RS232, RS485 and RS422 interfaces
- Five communication channels: one RS232 channel, two RS485 channels and two RS422 channels
- Level conversion circuits: MAX3232 for RS232, MAX3485 for RS485 and MAX3490 for RS422
- 3.3V TTL logic: direct signal exchange with FPGAs and ARM processors possible
- 40-pin expansion connector: quickly connect the module to a compatible development board
- Standard DB9 connector: convenient connection to a computer or device equipped with an RS232 port
- Screw connectors: stable connection of RS485 and RS422 bus cables
- 120 Ω Termination: Jumper-enabled resistors facilitate proper bus termination
- ESD protection ±15 kV: additional protection of RS485 and RS422 lines against electrostatic discharge
- Industrial temperature range: -40°C to 85°C operation
- Compact design: board dimensions approximately 81 x 51 mm
Technical specifications of the module
- Type: communication module for FPGA and SoC boards
- Supported standards: RS232, RS485, RS422
- RS232 interface chip: MAX3232
- RS485 interface chip: MAX3485
- RS422 interface chip: MAX3490
- Number of RS232 channels: 1
- Number of RS485 channels: 2
- Number of RS422 channels: 2
- RS485 transmission mode: half duplex
- RS422 transmission mode: full duplex
- Signal level on the development board side: TTL 3.3 V
- Module power supply via expansion connector: 5 V
- Maximum RS232 transmission speed: 120 kb/s
- Maximum RS485 transmission speed: 500 kb/s
- Maximum RS422 transmission speed: 500 kb/s
- RS232 connector: DB9 male
- RS485 connectors: 2 x 3-pin screw connectors
- RS422 connectors: 2 x 5-pin screw connectors
- Development board connector: 40-pin female
- RS485 termination resistors: 120 Ω, enabled via jumpers
- RS422 termination resistors: 120 Ω, enabled via jumpers
- RS485 and RS422 line protection: ESD ±15 kV
- Operating temperature: -40°C to 85°C
- Dimensions: approximately 81 x 51 mm
Contents of the set
- ALINX AN3485 communication module
The AN3485 is designed for use on SoC and FPGA development boards.
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