Specifications

Chapter 1 Overview Installation and Operation Manual
1-18 Functional Description DXC-100PSX
2. Redundant narrowband (D8E1T1) module set (if in standby mode) receives
configuration and cross-connect map information for the defective module
from the DXC-100 system manager.
3. PSX controller module receives command from the DXC-100 system manager
to transfer all eight links to the redundant module in place of the failed
D8E1T1 module set.
4. Redundant module will synchronize with the links and user traffic will be
reestablished.
See
1 Figure 1-14 for an overview of the protection operation using the
Narrowband Redundancy Group.
Once the original fault has been cleared or the defective module(s) replaced, the
operator can command the DXC-100/PSX to restore the normal path (i.e.,
revertive restoration is not an automatic process by design).
DXC-100
Figure 1-14. Narrowband Protection Operation