The Edimax BR or Sweex LB is a family small broadband routers. The BR6101 has a parallel port, while the BR6104 is wired for USB instead.
The BR6101 or Sweex LB100010 is based on the ADM5106 SoC. It has one WAN Ethernet port, a 4 port switch and a parallel printer port. The parallel port is handled by a Winbond W83877TF. It has 1MB of flash memory (29LV8000ABTC-70) and 4MB SDRAM (W986432DH-6).
It probabely uses the Broad Net Technology real-time OS.