8
SIP Operation Manual
3S1O Model (3 FXS and 1 FXO ports)
DC+12V Reset
P1
WAN
L1
FXS ports : 1, 2, 3
FXO ports : 4
FXS to telephone set;
FXO to PSTN lines
WAN port
Connects to broadband
Networks such as ADSL,
Cable Modem or Router
LAN ports 1 ~ 4
(built-in Ethernet switch)
Connect LAN hosts here
to share WAN connection.
IP sharing features enabled
POWER
Connects to the power
adapter (comes with
the gateway)
RESET
To reset the
gateway
Or to restore
factory settings
P2 P3
P4
L2
L3 L4