9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. IV-7-41
Procedure for DAC 155oM Configuration
Before You Begin
There are two screens involved in configuring the DAC 155oM:
• Line Interface
• Bus Ports
Figure 7-10 on page 7-39 shows a typical Line Interface screen for a DAC
155oM. Depending on the E1 or DS1 selection made in the Backplane Ports
screen, the Plug-in identifier displays 63xE1 or 84xDS1 respectively, 63xE1 is
default.
Figure 7-11 on page 7-40 shows a typical DAC 155oM Bus Ports screen.
2 Ports field. Scroll down to view all ports for:
• Tributary mapping. See item 3.
• Commissioned. Configured tribs must be ticked as commissioned so that:
• AIS, RDI, LOP, LOM, RPSLM alarms are detected, and
• The signal label identifier in the VT/VC overhead is set. (Set to bit
synchronous or byte synchronous depending on the configuration).
• Name. The bus ports can be individually named/identified.
3 For an SDH selection each port (Bus trib) is referenced to its TU-12 (VT-2)
tributary mapping within the STM1frame.
For a SONET selection each port (Bus trib) is referenced to its TU-11 (VT-1.5)
tributary mapping within the OC3 frame.
This data is applicable when BER testing a PDH trib on an SDH/SONET signal
using a PDH/SDH test set. The port numbering used conforms to G.707. The
numbering format is based on the mux heirachy
4 Click to select Bit Asynchronous or Transparent Virtual Tribs (TVT). TVT
required where the DAC 155oM is used to transport DAC ES or DAC GE
Ethernet traffic (Ethernet over NxE1 or NxDS1).
5 Select All, selects (highlights) all bus ports. Fill Selection sets all selected
(highlighted) ports to the same setting as the top-most selected bus port.
Item Description
If the DAC 155oM is to be used to close a PDH ring protected network, the
protection configuration must be established first. Refer to Protection on
page 8-1.
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