The DB9 Device Port connector supports
Pin | Signal | Function | |||
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1 | RX- | Receive data |
| X | X (strap to pin 9) |
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2 | RXD | Receive data | X |
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3 | TXD | Transmit data | X |
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4 | TX+ | Transmit data |
| X | X (strap to pin 6) |
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5 | GND | Signal ground | X | X |
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6 | RX+ | Receive data |
| X | X (strap to pin 4) |
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7 | RTS | Request to send | X |
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8 | CTS | Clear to send | X |
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9 | TX- | Transmit data |
| X | X (strap to pin 1) |
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IR/Serial Port: Connections and Wiring
You can connect one IR- or
This connector (FIG. 9) accepts the included IR Emitter
Signal: | Function: |
GND | Signal GND |
Signal (+) | IR/SERIAL data |
IR
FIG. 9 IR/SERIAL connector
Input/Output (I/O) Port: Connections and Wiring
The I/O port responds to either switch closures, voltage level (high/low) changes, or it can be used for
| +12V I/O | I/O | GND |
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I/O
FIG. 10 INPUT/OUTPUT connector
A contact closure between the GND and an I/O port is detected as a Push.
When used for voltage inputs, the I/O port detects a low (0 - 1.5 VDC) as a Push, and a high (2.0 - 3.3 VDC) signal as a Release (this IO port uses 3.3V logic but can handle up to 5V
without harm).
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