Chapter 7. Node and Terminal Plug-ins
Vol. IV-7-38 Alcatel-Lucent
• Traffic-carrying tribs must be commissioned.
• A commissioned trib displays an LOS alarm when input traffic is lost (no
valid E3 or DS3 connection).
• For protected DACs LOS is a switching condition.
4. Enter a tributary name by clicking in the
Name field and typing (optional).
Trib names entered in this column are also displayed in the System Controls
screen for the same DAC.
5. Enter a name (optional - recommended) for the module by right-clicking in
the relevant DATA module in the System Summary screen, selecting
Rename, and typing. The default name is ‘unnamed’.
6. Commit the configuration by clicking
Send.
Next Step: Go to the Circuits screen to configure circuit cross-connects. Refer to
Procedure for Configuring Circuits - Traffic, Volume IV, Chapter 9.
DAC 155oM Configuration
The DAC 155oM multiplexes a 155 Mbps STM1/OC3 optical line interface to/
from a 63xE1 or 84xDS1 backplane bus connection.
If NMS transport is required, the DAC 155oM must be installed only in slots 1 to
6, of the INUe. This does not apply to the INU; any option slot may be used.
DAC 155oM Screens
Figure 7-10 shows a typical Line Interface screen for the DAC 155oM.
Figure 7-11 on page 7-40 shows the corresponding Backplane Ports screen.
If a Trib is Uncommissioned... If a Trib is Commissioned...
• LOS alarms are suppressed.
• The interface is disabled (Tx to customer
is disabled).
• Received traffic causes an
uncommissioned traffic alarm.
• Trib is enabled.
• LOS alarms are raised if LOS is
detected. Front panel Status LED
indicates red for an LOS alarm.
For protected DACs and IDUs, LOS on any trib interface is a switching condition.
Ensure all traffic-carrying tribs are commissioned (commissioned tick-box for
relevant trib(s) is ticked).
So that invalid alarms are not raised, ensure that all tribs not carrying traffic are
not commissioned (not ticked).
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