
38 Chapter 3 Instant Internet 400-S hardware installation
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Table 2 describes the Ethernet interfaces available for your Instant Internet 400-S
unit.
Table 3 describes the communications interface cards available for your Instant
Internet 400-S unit.
Table 2 Ethernet interfaces
Interface name Interface card Type
Eth1 Seven-port Ethernet switch on
the front of the unit. More
information is available in
Chapter 4, “Seven-port
autosensing switch
specifications,” on page 51.
Eth2 Standard Ethernet interface on
the back of the unit. Use Eth2
as your DMZ connection.
Eth3 Standard Ethernet interface
card. Use Eth3 as your WAN
connection.
Table 3 Communications interface cards
Interface name Interface card Type
Dual Analog Analog modem interface card
with two RJ-11 connectors for
phones (outgoing to modem)
and two RJ-11 connectors for
telcos (incoming from wall jack).
ISDN U ISDN U interface card
(integrated NT1) with one
POTS connector and one RJ-45
connector.
9865EB
9866EB
Ethernet
10/100
Aux Configuration
Link Act
ALM
100
10
9855EB
Line
Phone
Line
Phone
9857EB
ISDN
Phone
B1
B2
LK
9856EC
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