Introduction to the Hotwire DSLAM
1-10
8000-A2-GB21-30
April 1998
5446 RTU
The Hotwire 5446 RTU is composed of a DSL modem supporting full speed DSL
line rates and an IP forwarder that can support multiple end-user systems.
The 5446 RTU can be connected directly to an end-user system or to multiple
end-user systems via an Ethernet (10BaseT) hub.
The following illustration shows the Hotwire 5446 RTU with its 10BaseT interface
connected directly to an end-user system (typically a PC or workstation with a
LAN card) with a crossover cable:
POTS/DSL
NID
From Network
Access Provider
5446
RTU
NID = Network Interface Device
DSL
97-15455b
10BaseT
End-user
System
POTS
POTS
Splitter
POTS
Optional
A 5446 RTU supports multiple service domains and can be configured with up to
four IP subnets. Each of the four IP subnets can be comprised of multiple users
by appropriately sizing the respective IP subnet.
In addition, each 5446 RTU supports up to 32 end-user systems that dynamically
acquire their IP addresses or have static IP addresses. The Dynamic Host
Configuration Protocol (DHCP) is used for dynamic addressing. In both cases
(dynamic and static), these 32 end-user systems must be in one of the configured
IP subnets.
The following illustration shows a Hotwire 5446 RTU with its10BaseT interface
connected to multiple end-user systems (typically a PC or workstation with a LAN
card) via an Ethernet (10BaseT) hub.
