DIY Taisen Cable using Ethernet cable

[Knight0fDragon]

(This is exactly the same from the 28th Anniversary Contest)

Based on 3d models by zone66x and tmzwx, I have made shell printouts for a cable that is built from an ethernet cable that uses solid copper wiring.

This design handles both SH2 CPUs. If you want to use the MIDI as well, you need a different connector. Personally, I have used a separate RJ12 connector (Phone line) for that.
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I also plan on updating the design to allow for dupont pins as well, unfortunately one of the issues I have encountered is the thinkness makes it hard to use dupont pins with casings around it, but I will get it figured out.


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Below here are the pin outs used for various connections.

<insert better pictures to explain letters>



Using CAT5E cabling.

CAT5E Saturn

Orange Striped A1 -> B5 M-TXD
Orange Solid A2 -> B9 S-TXD
Green Striped A3 -> B6 M-RXD
Blue Solid A4 -> B8 GND
Blue Striped A5 -> B12 GND
Green Solid A6 -> B10 S-RXD
Brown Striped A7 -> B7 M-SCK
Brown Solid A8 -> B11 S-SCK


(Taisen support)
CAT5E Cross Over Saturn

Green Striped A1 -> B5 M-TXD
Green Solid A2 -> B9 S-TXD
Orange Striped A3 -> B6 M-RXD
Blue Solid A4 -> B8 GND
Blue Striped A5 -> B12 GND
Orange Solid A6 -> B10 S-RXD
Brown Striped A7 -> B7 M-SCK
Brown Solid A8 -> B11 S-SCK



CAT5E FTLD and RS232 Master

Orange Striped A1 -> RX
Orange Solid A2 ->
Green Striped A3 -> TX
Blue Solid A4 -> GND
Blue Striped A5 ->
Green Solid A6 ->
Brown Striped A7 -> SCK
Brown Solid A8 ->

CAT5E FTLD and RS232 Slave

Orange Striped A1 ->
Orange Solid A2 -> RX
Green Striped A3 ->
Blue Solid A4 ->
Blue Striped A5 -> GND
Green Solid A6 -> TX
Brown Striped A7 ->
Brown Solid A8 -> SCK


CAT5E FTLD and RS232 Master and Slave (2 units)

Orange Striped A1 -> RX(Master)
Orange Solid A2 -> RX(Slave)
Green Striped A3 -> TX(Master)
Blue Solid A4 -> GND(Master)
Blue Striped A5 -> GND(Slave)
Green Solid A6 -> TX(Slave)
Brown Striped A7 -> SCK(Master)
Brown Solid A8 -> SCK(Slave)


CAT5E FTLD and RS232 Master to Slave Cross Over (Will be needed for taisen tunnel and master only FTLD)

Orange Striped A1 -> RX(Slave)
Orange Solid A2 -> RX(Master)
Green Striped A3 -> TX(Slave)
Blue Solid A4 -> GND(Slave)
Blue Striped A5 -> GND(Master)
Green Solid A6 -> TX(Master)
Brown Striped A7 -> SCK(Slave)
Brown Solid A8 -> SCK(Master)


CAT5E Controller port

Orange Striped A1 -> Pin 8 (MISO for Murzik SD loader)
Orange Solid A2 ->
Green Striped A3 -> Pin 5 (MOSI for Murzik SD loader)
Blue Solid A4 -> Pin 9 (GND for Murzik SD loader)
Blue Striped A5 ->
Green Solid A6 ->
Brown Striped A7 -> Pin 7 (SCK for Murzik SD loader)
Brown Solid A8 ->

Homeless for now
Pin 1 VCC
Pin 4 /CS