2 wan connection, 3 atm connection – Hitachi GR2000 User Manual
Page 101
Product Overview
GR2K-GA-1002
2-45
Rev 6.03
2.5.2.2
WAN Connection
The following WAN connections are possible:
Leased line connection
Connects to a leased line via modem.
Highspeed digital line connection
Connects to a highspeed digital leased line via DSU.
Frame relay network connection
Connects to a frame relay network via DSU.
Ultrahighspeed digital line connection
Connects to a ultrahighspeed digital line via DSU.
ISDN Network Connection
Connects to an ISDN network via DSU.
2.5.2.3
ATM Connection
Connects to ATM Service via DSU/ONU.
Leased Line
Device
Device
M
M
M Modem
Device
Device
Highspeed Digital Line
DSU
DSU
Device
Device
Frame Relay Network
DSU
DSU
Device
Device
Ultrahighspeed Digital Line
DSU
DSU
Device
Device
ISDN Network
DSU
DSU
Device
Device
ATM Service
DSU/ONU
DSU/ONU