D-Link DSL-G624T rev A1

Overview
The wireless module is probably a Alpha Networks WMP-G04.

Per the manual, the default SSID is presumed to be DLINK_WIRELESS.
 * There are a fair number of entries for this SSID on WiGLE.

Links of Interest
On the OpenWrt wiki
 * TNETD7300AZDW CPU

On the routertech.org forums
 * 00:19:5B OUI