D-Link DIR-300 rev D1

N150 Wireless Router

"AP699E9N.BT1738-4-DL" and "REV1.0" appears to
 * be silkscreened on the board in the FCC photos.

FCC docs state that this FCC ID: KA2IR300D1 also covers:
 * D-Link DIR-600 (D-Link DIR-600L rev B1)
 * D-Link DIR-607

Serial
The serial port on board marked "J1". Levels is TTL 3.3V.
 * Pins: 1 - VCC, 2 - GND, 3 and 4 - Data (Rx and Tx).

Baud rate: 38400 Data bits: 8 Parity:   none Stop bits: 1