Isolated rs485-modbus transceiver

manhoosbilli1·isolated-rs485-modbus-transceiver

Isolated rs485-modbus transceiver

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About the Isolated rs485-modbus transceiver PCB

Isolated rs485-modbus transceiver is an open source PCB design by manhoosbilli1, published on GitHub. It is a board, with 102 components from 38 distinct parts.

Other key parts include the NL17SZ125DFT2G, SN65HVD11QDR and CP2104-F03-GM. By type, the board carries 48 resistors, 18 capacitors, 15 test points, 9 ICs, 4 transistors and 4 diodes.

It belongs with the rf & radio designs in this gallery.

From the project

Isolated RS-485/Modbus transceiver board (SN65HVD11 + ISO7762/7763 digital isolators + Si8642)

Isolated RS-485 / Modbus transceiver board with SN65HVD11 transceiver and ISO7762/7763/Si8642 digital isolators

- Status: Partial / WIP - Board size: (no Edge.Cuts outline yet) - Layers: ? - Components: ? - Key ICs: - U26: ISO7763FDW - U31: NL17SZ125DFT2G - U40: ISO7762FDWR - U42,U43,U88,U89,U101: SN65HVD11QDR - U76: ISO7763FDWR - U85: Si8642BD-B-IS

- SN65HVD11QDR x2 - 3.3 V RS-485 transceivers (one per bus / redundant pair); slew-rate-limited for low EMI - ISO7762FDW - 4-channel reinforced digital isolator (3 forward + 1 reverse) - ISO7763FDW - 4-channel reinforced digital isolator (all…

Main components on the Isolated rs485-modbus transceiver

NL17SZ125DFT2G SN65HVD11QDR CP2104-F03-GM

Isolated rs485-modbus transceiver bill of materials (BOM)

102 components, 38 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
5	~		U1, U17, U49, U55, U92
2	NL17SZ125DFT2G		U52, U53
1	SN65HVD11QDR	SOIC-8_3.9x4.9mm_P1.27mm	U71
1	CP2104-F03-GM	QFN50P400X400X80-25N	U95
4	DMN33D8LTQ		Q9, Q16, Q31, Q42
1	32.758KHz		Y1
1	24MHz		Y2
1	Conn_01x01_Pin		J9
1	YE LY		DS5
7	TestPoint		TP38, TP116, TP117, TP145, TP146, TP151, TP152
3	JTAG_nTRST		TP40, TP41, TP49
1	JTAG_TMS		TP42
1	JTAG_TCK		TP43
1	JTAG_TDI		TP45
1	JTAG_TDO		TP46
1	POR_B		TP48
2	SD103CWS	D_DO-41_SOD81_P10.16mm_Horizontal	D18, D88
2	BAT54SW	SOT-323_SC-70	D50, D51
6	100n		C20, C21, C81, C139, C140, C561
4	18p		C135, C138, C149, C150

Show 18 more

Qty	Part	Footprint	Refs
2	220n		C144, C460
4	1u		C157, C158, C213, C214
1	200n		C224
1	4u7		C517
18	10k		R33, R35, R266, R267, R275, R287, R288, R508 +10
4	1M		R34, R38, R106, R507
8	100k		R36, R37, R39, R105, R107, R255, R260, R509
1	27k4		R40
3	~	0402	R265, R306, R340
1	33r		R274
3	1k		R285, R430, R437
1	2M21		R321
3	100r		R338, R405, R406
1	4k75		R401
1	56K		R402
1	58k		R403
2	240r		R431, R436
1	330r		R820

Isolated rs485-modbus transceiver design files

The KiCad project lives in the manhoosbilli1/isolated-rs485-modbus-transceiver repository on GitHub; these links point at the commit this page was built from.

SchematicLuca_pdf_to_sch2.kicad_sch
BOMreports/bom.csv

Isolated rs485-modbus transceiver: common questions

How many components are on the Isolated rs485-modbus transceiver?

102 components, from 38 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Isolated rs485-modbus transceiver design files?

From the manhoosbilli1/isolated-rs485-modbus-transceiver repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the Isolated rs485-modbus transceiver design in my own project?

The repository has no license, so all rights stay with manhoosbilli1. Use it as a reference, and ask the author before reusing the design.

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