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Chapter 1: Overview September 25, 2006
1-4 LTPE-UM-3159-02
Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet
Figure 1-3. Remote Management of Multiple Shelves at Two Sites Using Multishelf TAO
The Multishelf TAO firmware allows the DSL circuits in a single shelf or a network of shelves to be managed from a
single point-of-access (the EMU-830 console port of one shelf or using a Telnet session to one EMU-830). The
alarm status for each shelf in a multishelf network can be viewed on a single Network screen (Figure 1-4 on page 1-
5), and the alarm status of each DSL circuit in a selected shelf can be viewed on a single Main Menu screen (Figure
1-5 on page 1-5). Each EMU-830 constantly monitors the DSL cards in its shelf for alarm conditions and
automatically updates the alarm status.
From the TAO Network screen (Figure 1-4 on page 1-5), you can access any shelf in the network and then, from the
Main Menu screen (Figure 1-5 on page 1-5), log into any DSL card installed in the shelf. Logging into an DSL card
provides access to that card’s maintenance menus and is equivalent to connecting a terminal directly to the Craft
port on the HDSL card.
Note: HDSL cards cannot be directly managed from their front-panel craft port when the EMU-830 is
installed in the shelf. G.SHDSL (UTU-91x and WD92xGx) cards can be managed from their front-panel craft
port when the EMU-830 is installed in the shelf. Telnet can also be used to manage multiple EMU-830s
using multishelf TAO in the same logical IP network.
Exchange
Switch
VT100 dumb
terminal or
PC with terminal
emulation software
DSL Lines
NTU/STU-R
NTU/STU-R
PBX
Video
Conference
GSM
Base Station
To EMU Console port
from PC serial port
WorldD
S
L
Shelf
PC running
Telnet Client
To EMU
10Base-T
port
VT-100 dumb terminal
or PC with terminal
emulation software
Network Management Station
Exchange Office 2Exchange Office 1
Modem
Modem
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
Modem connected to
console port of any EMU
Up to 32 shelves linked
over Ethernet network
Modem connected to
console port of any EMU
Printer
PSTN
Modem
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
PC running Telnet
Client/StarGazer
Network Management Station
Ethernet Hub/
Switch
Ethernet
Network
EMU
10Base-T
Port