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ER-301/Teletype Connection Rev7

434 bytes removed, 3 years ago
Required Hardware Modification
Step 1: Cut a 7mm piece of solid core wire or use part of a lead from a resistor or LED:<br>
https[[File://forum.orthogonaldevices.com/uploads/default/optimized/2X/1/1046491ead3f3fa1920923b12850da2e5fef64ed_1_690x450shunt-cut.jpg|400px]]
Step 2: Bend it around some needle-nose pliers:<br>
https[[File://forum.orthogonaldevices.com/uploads/default/optimized/2X/1/14892e8891d2d0dd8dfdbf746645a1bccc26c3ba_1_531x499shunt-before-bend.jpg|400px]]
Step 3: You should have a nice boxy U-shape like this:<br>
https[[File://forum.orthogonaldevices.com/uploads/default/optimized/2X/e/eeeea02955370ae9d6eab3024646a3a870252045_1_690x398shunt-created.jpg|400px]]
Step 4: Place around diode D3 like this with the bottom of the U oriented towards the bottom of the board so that we do not short resistor R62:<br>
https[[File://forum.orthogonaldevices.com/uploads/default/optimized/2X/b/b8b5fbaf21b5454184a83681f3aa02a05087df3e_1_690x397shunt-closeup.jpg|400px]]
Step 5: And solder like this:<br>
https[[File://forum.orthogonaldevices.com/uploads/default/original/2X/0/0a3722da3150d3243fa63971b0b5cedc7da948cfdiode-shunted.png|400px]]
Step 6: Check continuity between the right side of R62 and the RX/SDA pin of the UART connector.<br>

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