Alcatel-Lucent 9500 MXC User Manual page 506

Chapter 8. Protection
Vol. IV-8-24
• As the tribs are not protected for Hot Standby: Non-protected Tributary
operation, each IDU is separately trib-cabled (cross-over or straight cables) to
its user interface. Y cables are not used.
For easy simultaneous viewing of multiple screens, move and resize the screens.
Once the screen positions are set, the same positions for primary and secondary
IDUs appear each time a protected IDU pairing is opened
IDU 20x: Normal Data Flow
Figure 8-7.
20xE1 / 16xDS1
Tribs
Expansion Cable
Primary
IDU
ODU
Tx Rx
Tx Rx
ODU
IDU
Primary
Expansion Cable
20xE1 / 16xDS1
Tribs
20xE1 / 16xDS1
Tribs
Secondary
IDU
ODU
Rx
Rx
ODU
IDU
Secondary
20xE1 / 16xDS1
Tribs
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