9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. IV-7-33
Procedures for DAC 3xE3/DS3M
1. From the Plug-ins screen, select the required module.
2. Select the required Mode: 3xE3/DS3, E13/M13 Multiplexer, or Transparent
E3.
Procedure for 3xE3/DS3 Mode
1. Select the 3xE3/DS3 mode and Tributary type (DS3).
2. Check/set Required Bus Type (DS3). When changing a tributary type, the
backplane bus must be set to match the selection. Reset using the Bus
Configuration selector in the Circuits screen; click Required Bus Type to go
directly to the Circuits screen. If not set correctly, the Required Bus Type
displays a warning.
3. Click (tick) Commissioned for the traffic-carrying tribs.
• 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
Native E3 is not a supported RAC capacity (RAC 30v3, RAC 3X, RAC 40). Where
E3 tribs are required, select the E13 multiplexer mode.
Trib Uncommissioned Trib Commissioned
• LOS alarms are suppressed.
• Received traffic causes an
uncommissioned traffic alarm.
• Traffic is enabled.
• LOS alarms are raised if LOS is
detected. Front panel Status LED
indicates red for an LOS alarm.
For protected DACs, 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 tribs not carrying traffic are not
commissioned (not ticked).
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