Introduction to the HotWire DSLAM
1-6
8000-A2-GB21-20
November 1997
The MCC card performs alarm monitoring of the HotWire DSL cards, the DSLAM
power and cooling systems, and interfaces to the CO alarm system. It also
interfaces with external managers and servers (e.g., File Transfer Protocol
servers) for system configuration and management.
DSL Cards
Each 8540 or 8546 DSL card in the HotWire DSLAM chassis contains four DSL
ports with on-board IP packet forwarding functionality. The outputs of the four
DSL ports are combined onto one 10BaseT interface for connecting to the
Internet or Intranet by means of the Network Access Provider’s network.
For a list of the supported features of the 8540 and 8546 DSL cards, see the
HotWire DSLAM for 8540 and 8546 DSL Cards User’s Guide.
What is an RTU?
A HotWire Remote Termination Unit (RTU) resides at the customer premises. The
RTU connects to the local loop to provide high-speed connectivity to the HotWire
DSLAM. In addition, the RTU and your telephone can function simultaneously
over the same pair of copper wires when a POTS splitter is used at both ends of
the local loop. The POTS splitter filters out the DSL signal and allows the POTS
frequencies to pass through.
If you have an . . .
Your DSL card interoperates with a . . .
8540 DSL Card
5170 RTU
5171 Remote PC NIC
5216 RTU
5246 RTU
8546 DSL Card
5446 RTU
The following sections briefly describe these RTUs.
5170 RTU
The HotWire 5170 RTU is a standalone unit designed for the home-office users
with a LAN. The RTU communicates with any computer equipment or router
using its Ethernet network interface card (NIC).
Control of the 5170 RTU is supplied by a windows-based diagnostics utility which
enables users to check RTU status, network transmission status, and run
diagnostic tests.
You can connect the 5170 RTU directly to your PC using an 8-pin modular
Ethernet cable.
