Belkin F5D8235-4 v1

Overview
Manuf. (and perhaps designed) by Gemtek, WRTR-235GN (WRTR-235GN_V01).
 * There is a NEC USB controller on-board.

The default SSID appears to be Belkin_N+_XXXXXX (where XXXXXX is replaced by the last three octets of the wireless interface MAC address [capital letters]).
 * When resetting to factory defaults, it seems the device temporarily assumes the SSID of Belkin_N+_Wireless_180170.
 * Belkin_N+_Guest is the default SSID for the guest network, but this is not enabled by default.

Links of Interest

 * On the OpenWrt wiki
 * On the DD-WRT forums (thread goes nowhere, no donated HW)

Serial Pinouts
J6 (GND) (RxD) (GND)   --> to copper shielding (VCC) (VCC) [TxD]

Pictures
User Images