Analog DevicesEVAL-RS485FDEBZ

The EVAL-RS485FDEBZ allows quick and easy evaluation of full-duplex RS-485 transceivers with standard 14-lead SOIC footprints. The evaluation board allows interfacing via screw terminal block to digital I/O for driver input (DI), receiver output (RO), driver enable (DE) and receiver output (RO). Bus signals A, B, Y and Z (full-duplex bus) can be connected to a bus screw terminal block. Termination resistors are fitted across A and B, as well as Y and Z. These can be connected in half-duplex configuration (A to Y, B to Z), in order to evaluate the RS-485 driver. Footprints are provided for pull-up and pull-down (biasing resistors) on the receiver inputs in order to provide the option to evaluate an RS-485 receiver with this configuration.

• Easy evaluation of half- and full-duplex RS-485 transceivers
• Board layouts for standard RS-485 SOIC footprints
• 14-lead, SOIC, full-duplex RS-485 (EVAL-RS485FDEBZ)
• Power/ground connections through screw terminal blocks
• Screw terminal blocks for logic I/O and RS-485 signals
• Jumper selectable enable/disable for RE and DE
• Test points for measuring all signals
• Resistors and footprints for termination and biasing networks

• Full- and half-duplex RS-485 transceiver evaluation

UG-543:Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers  (pdf, 783 kB)