Billion Electric Company BiPAC 8501/8521 - Manual (Page 72)

Billion BiPAC 8500/8501/8520/8521 SHDSL (VPN) Firewall Bridge/ Router
Chapter 4: Configuration
68
Note: When select 2-wired mode, only Port 1 settings need to be configured and the SHDSL
(RJ-11 cable) must be connected to LINE 1 on the back of the device.