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/* Imported from Wayback Machine
   Original URL : https://www.retrobrewcomputers.org/doku.php?id=boards:ecb:backplane-4:start
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==== Table of Contents ====

[[#ecb_backplane_4|ECB Backplane 4]]

[[#features|Features]]

[[#design_files_r01|Design Files R01]]

[[#parts_list|Parts List]]

[[#pictures|Pictures]]

====== ECB Backplane 4 ======

The purpose of this backplane design is to take advantage of the discount offered by many PCB manufacturers with 10x10cm PCB boards. It's a cut down version of A. Lynch and J. Coffman's 8-slot design and was inspired by Will Sowerbutts ECB Mini Backplane board.

{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=255&h=256&tok=accf81&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fb1ackmai1er%2Fimages%2Fbackplane_4%2Fbackplane-4-r01-20180416.png?255x256}}

===== Features =====

4 ECB Slots

Low cost 10x10cm format

Industry standard power connection

On/off switch with LED indicator

Reset connector

Battery backup connector

Additional mounting holes

===== Design Files R01 =====

Gerbers for 4 slot 10x10cm backplane

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:b1ackmai1er:backplane4-r01-20180416.zip|:builderpages:b1ackmai1er:backplane4-r01-20180416.zip]]

kicad files:

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:b1ackmai1er:backplane4-r01-20180416-kicad.zip|:builderpages:b1ackmai1er:backplane4-r01-20180416-kicad.zip]]

===== Parts List =====

^Part          ^Qty^Desc                                           ^Comment                                   ^                                                                                             ^
|R1            |1  |470R 0.25w resistor                            |                                          |                                                                                             |
|C1, C3, C5, C7|4  |220uF4.04mm Electrolytic                       |                                          |                                                                                             |
|C2, C4, C6, C8|4  |0.1uF Ceramic                                  |                                          |                                                                                             |
|D1            |1  |5mm LED                                        |Green                                     |Lite-On LTL-4233 (Mouser order code 859-LTL-4233)                                            |
|SW1           |1  |SPDT toggle switch                             |ON-ON type, 0.185” lead spacing, 5A rating|TE Connectivity A101SYCQ04 (Mouser order code 506-A101SYCQ04)                                |
|P2            |1  |4-pin disk drive power connector               |                                          |Molex 15-24-4745 (Farnell order code 1391827)                                                |
|U0, U1, U2, U3|4  |DIN 41612 Connector, Type C Socket, 96 contacts|                                          |TE Connectivity 5535043-5 (Mouser order code 571-5535043-5), or 535090 which has shorter pins|
|JP1           |1  |1×2 pin header                                 |                                          |Polarized connector preferred                                                                |
|JP2           |1  |1×2 pin header                                 |                                          |                                                                                             |

|||

===== Pictures =====

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=cbebd0&media=https://www.retrobrewcomputers.org//lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/b1ackmai1er/images/backplane_4/backplane4vs3.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=383&h=264&tok=106cde&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2F%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fb1ackmai1er%2Fimages%2Fbackplane_4%2Fbackplane4vs3.jpg?383x264|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_b1ackmai1er_images_backplane_4_backplane4vs3.jpg}}]]

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{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=595&h=581&tok=0dff9e&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fb1ackmai1er%2Fimages%2Fbackplane_4%2Fbackplane-4-build-2.jpg?595x581|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_b1ackmai1er_images_backplane_4_backplane-4-build-2.jpg}}

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