OfficeServ 7400 General Description
© Samsung Business Communications
2-27
2.3.4.5 GWIM
The Gigabit WAN Interface Module (GWIM) provides WAN interfaces to support the data
network to the keyphone system. GWIM provides a leased line for data communication be-
tween the keyphone system and the Internet, supports connection of an xDSL/cable modem
interface, and performs functions for VPN, QoS and Firewall. For the leased line ports,
there is a port for connection up to E1 speed, and a port for connection up to T3/E3 speed
(50 Mbps). In addition, there is an additional DMZ port that makes firewall construction
easy.
Main Functions
The main functions of the GWIM data module are as follows:
y
Routing between WAN and LAN
y
Supports Multiple WAN ports (Leased line, xDSL/cable modem interface)
y
Functions for VPN, QoS and Firewall
y
Provides various external interfaces for data transmission/reception with the external
Internet.
y
Provides ports for connecting with the internal network
y
Leased line interface using V.35/HSSI
y
1000 BASE-FX Ethernet port working with xDSL or cable modem
y
1000 BASE-TX/SX/LX for Ethernet LAN interfaces
y
UART ports for configuration setting
y
Functions as various applications such as Firewall and VPN
Specifications
The specifications of the GWIM data module are as follows:
y
1000 BASE-SX/LX/TX ports
y
One T1/E1 (V.35) port
y
One T3/E3 (HSSI) port
y
One serial console port
