Chapter 9. Circuits
Vol. IV-9-14 Alcatel-Lucent
configured for Mixed mode. Doing so allows C1 at one node to be connected
to C1 or C2 at the next node, thereby supporting an odd or even number of
Nodes in a ring
Additional Rules for DAC 3xE3/DS3M
1. For 3xE3/DS3 mode the Bus Configuration must be set for E3 or DS3.
2. For E13/M13 mode the Bus Configuration must be set for E1 or DS1.
3. For E13/M13 mode the two E3 or DS3 tribs are presented as:
• E3 front-panel Tx/Rx 1 to E1 ports 1 to16
• E3 front-panel Tx/Rx 2 to E1 ports 17 to 32
• DS3 front-panel Tx/Rx 1 to DS1 ports 1 to 28
• DS3 front-panel Tx/Rx 2 to DS1 ports 29 to 56
4. For E13/M13 mode, where the E1/DS1 streams are to be transported
end-to-end over a 9500 MXC link or links, the E1 or DS1 circuits should, for
ease of identification, be in contiguous blocks of 16xE1 or 28xDS1
respectively.
5. Where the E13/M13 mode is used to demultiplex an incoming E3 or DS3 trib
(from a 3rd party E13/M13 mux or from another DAC 3xE3/DS3M), the
individual E1 or DS1 circuits may be port-port connected via the bus to a
DAC 16x or multiple DAC 4x plug-ins, which may be on the same INU/INUe
and/or at a remote INU/INUe via LINKs (RACs).
6. For E3 Transparent node the E1 circuits should, for ease of identification, be
in contiguous blocks of 17xE1.
Circuits Configuration - Auxiliary
Unlike traffic circuits, which are carried as main payload, Auxiliary circuits are
carried within the LINK or DATA (DAC 155oM) overhead, along with NMS and
proprietary link signalling.
Before AUX circuits are configured, the plug-ins to be used to transport the
AUX circuits (RAC/ DAC 155oM) must be configured.
Similarly, AUX circuits to be connected must first be established within the AUX
plug-ins screen. Refer to Procedure for Configuring Auxiliary Circuits on
page 9-16
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