Labels:reckoner | sky OCR: AppleTalk Connector Schematic An Excerpi from: The App1 IeTalk Personal Network Technical Specifications bu Frederick Davis 680 DB25 3-Pin Miniature DIN pins pins R3=1kS Connector with Switch WW 11 and J2) Pin R4=1kQ .11 :5 R2= 100 R5=1kS Gnd. Case Shell R1=1MS C1=0.1 microfarad The App1eTa1k connection modules contain a transformer with a 1:1 turns ratio pue tight coupling between pri imary and secondary windil i ngs The transformer has elect rostatic shielding that provides ground insulation well pro- tection from static discharge The two three- pin connector have switches connected to a 100- -ohm terminating resistor (R2 the figure above} Each of the three pin connectors has coupled switch J1 and J2 in the figure above f both connectors are pasn the 3wi tches are uado but if one of the ...
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