| back of the 8300-4 Pin |
Name | Direction | Description |
|---|---|---|---|
| 1 | Logic Ground |  |
|
| 2 | VCC (+5vdc) | |
For supplying +5 VDC to the scanner |
| 3 | RXD |  |
Receive data (RS-232 voltages) |
| 4 | CTS | |
Clear to Send (RS-232 voltages) |
| 5 | KbdDataIn | |
Keyboard wedge data (from a keyboard) |
| 6 | KbdClkIn | |
Keyboard wedge clock (from a keyboard) |
| 7 | RDATA | -?- | OCIA |
| 8 | Data ready | -?- | OCR, or 5B RX/TX |
| 9 | Vin(+12vdc) | |
+12 VDC input, optional if +5 VDC is supplied |
| 10 | Bootstrap | |
Short to ground to enable bootstrap mode |
| 11 | TXD |  |
Transmit data (RS-232 voltages) |
| 12 | RTS | |
Request to Send (RS-232 voltages) |
| 13 | KbdDataOut | |
Keyboard data (to computer) |
| 14 | KbdClkOut | |
Keyboard clock (to computer) |
| 15 | 5B RX2/TX2 | -?- | 5B RX/TX (inverted) |
