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DT204: Expansion board for SimmStick Bus. This is a Two Inch Module.
Free Local And International Air Mail Postage on Printed Circuit Boards. Conditions Apply.
Schematic? Not required as the 30 input signals simply connect to the 30 output signals.
Board Components and Assembly:
1 by DT204 PCB
Used just to add 4 slots to a bus and have the bus continue
Solder a pair of Dual 30 pin Simm Sockets on the component side of the board.
Solder a 30 pin right angle male connector to the input (SimmStick Bus end), and a 30 pin right angle female connector to the output.
You could plug it into a Simm Socket if you wish to leave the male pins off, as it is a SimmStick device in itself.
Used as a right angle or left angle bus connection, so that you
have a SimmStick facing up or down, or both.
Want to fit a ZIF socket to a SimmStick, or turn a SimmStick at 90 or 180 degrees to the normal?
Single or Dual Simm Sockets can be soldered on either the component or solder side of the board to suit your requirements. You can solder a right angle female 30 pin header socket on the output of the board, and make up a 30 pin male to a single row 30 pin Simm Socket just by soldering the two components together. This means you can have left, right, and extension boards all made from the DT204 Expansion board.
Signal Isolation and cross connection using either links or DIP
If you wish to use the DT204 for this task, you must cut all the tracks on the component side of the board. Strange statement?, YES. There are 29 tracks in a straight row with one track missing. This is pin 9, which is the ground pin. This track is run on the solder side of the board and is always connected. This set of track cuts lines up with J2 on the overlay and runs along where the dotted line on the overlay is. There is also arrow markings on the component side of the board.
Once the 29 tracks have been cut, they must be re-joined in one of two ways.
Solder a strip of 30 male pins into position J1, and another into
These pins are used to jumper around the now isolated bus.
You may find test clips, female jumper leads, or wire wrap as suitable methods of re-joining and cross connecting your projects input/output signals.
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