Network Interface Unit Removal/Replacement -- Standalone Node

A user or field engineer can remove a Network Interface Unit (NIU) from the 6300 chassis. When an NIU is removed, all services associated with the NIU (for example, media transmission, signaling, transcoding, and so on) will be interrupted and the system will be out-of-service (OOS).

Use the following procedure to remove an NIU.

1. Working from the back of the chassis, carefully open the NIU's latch. The hotswap LED placed directly above the NIU will transition from green (present/latch close/ready) to blinking blue. After 10 seconds it will stop blinking and remain blue (present/latch open/not ready).
2. You can now safely remove your NIU.

Removing the NIU generates a critical alarm notifying the user that the NIU has been removed. Additionally, the Vacuum Flourescent Display (VFD) displays a hardware alarm and starts blinking.From the ACLI, issue a "reboot force" command.

To see the alarm use: "display-alarms" from the ACLI.

To replace an NIU, insert an NIU of a different or the same type as the one used before.

The alarm manager clears the critical alarm, and issues new minor alarm to alert the user that an NIU was inserted after the boot sequence. At this point the system is still OOS.

After rebooting the system, service will be restored, and the new NIU will be functional