ReverseMX4
About the ReverseMX4 PCB
ReverseMX4 is an open source PCB design by salvogendut, published on GitHub. It is a 4-layer board measuring 100 × 200 mm, with 10 components from 10 distinct parts.
By type, the board carries 6 connectors, 2 capacitors, 1 fuse and 1 jumper.
From the project
An extension board for the Amstrad CPC which uses edge connectors instead of IDC ones
This project is a four-slot expansion backplane for the Amstrad CPC bus. A short cable connects the computer to a 50-contact male edge tongue on the backplane. Four vertical, 50-contact female card-edge sockets accept expansion cards that have the classic CPC edge finger pattern. There are no MX4/IDC headers on the backplane.
- CPC 464, 664 and 6128: cable with a 50-contact female edge socket at the computer. - CPC 464 Plus and 6128 Plus: cable with a 50-contact Delta/Amphenol style plug at the computer. - The board-end of either cable has a 50-contact female edge socket. The cable must map…
ReverseMX4 bill of materials (BOM)
10 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CPC_CABLE_EDGE PCB fabrication | CPC_Edge_2x25 | J1 |
| 1 | 395-050-521-204 EDGE_SLOT_1 EDAC | EDAC_395-050-521-204 | J2 |
| 1 | 395-050-521-204 EDGE_SLOT_2 EDAC | EDAC_395-050-521-204 | J3 |
| 1 | 395-050-521-204 EDGE_SLOT_3 EDAC | EDAC_395-050-521-204 | J4 |
| 1 | 395-050-521-204 EDGE_SLOT_4 EDAC | EDAC_395-050-521-204 | J5 |
| 1 | 1715022 EXT_5V_IN Phoenix Contact | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J6 |
| 1 | MF-RG300-0 3A_PTC Bourns | Fuse_Bourns_MF-RG300 | F1 |
| 1 | TSW-103-07-G-S 5V_SOURCE_SELECT Samtec | PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | 100uF_10V | CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 100nF_50V | C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
ReverseMX4 design files
The KiCad project lives in the salvogendut/reverseMX4 repository on GitHub; these links point at the commit this page was built from.
- LayoutreverseMX4.kicad_pcb
- SchematicreverseMX4.kicad_sch
- BOMdocs/bom.csv
ReverseMX4: common questions
How big is the ReverseMX4 PCB?
The ReverseMX4 measures 100 × 200 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ReverseMX4?
10 components, from 10 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 ReverseMX4 design files?
From the salvogendut/reverseMX4 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ReverseMX4 design in my own project?
The repository has no license, so all rights stay with salvogendut. Use it as a reference, and ask the author before reusing the design.