Scientific Atlanta WebSTAR DPC2100R2

Overview
"REV: 2.30 B", "PCB MADE IN CHINA", and a date code of 0840
 * is silkscreened on one particular DPC2100's board.

Teapo and Chemi-con branded capacitors are found.

Serial Pinouts
CON2 [RxD] (TxD) (GND) (...)