Chapter 4 Turning on the Avaya P460

Powering Up

In order to turn on the chassis you need to install at least one PSU and at least one Supervisor Module.

The fans are on whenever the power is on in the chassis, whether Supervisor Modules are installed or not.

Turning on a Chassis with Supervisor and I/O Modules Already Inserted

If you have inserted Supervisor module(s) and I/O module(s) into the chassis before turning on the PSUs, the power-up procedure is as follows:

1The Supervisor module(s) and fans are turned on automatically when the PSUs are turned on.

2The Supervisor module will turn on the modules one by one, verifying that there is enough power budget in the system first. If there are two Supervisor modules, the Active Supervisor Module perfoms this procedure.

Turning on a Chassis with a Supervisor Module Only

The fans are on whenever the power is on in the chassis, whether Supervisor Modules are installed or not.

If you turn on the PSU(s) in a chassis with a Supervisor Module, the power-up procedure is as follows:

1The fans start.

2The supervisor module is turned on. X You can now insert I/O Modules

Turning on a Chassis with no Modules

If you turn on the PSU(s) in an empty chassis – no Supervisor modules – the fans will start up.

Inserting an Additional PSU

1The SPV adds the new PSU power budget and checks how many PSUs are present in the chassis

2Modules not powered up because of an insufficient power budget are turned on. Otherwise the new PSU power is just added to the total available power.

3The PSU you insert are in redundant mode if the existing PSUs can already provide enough power for the chassis and installed components.

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Avaya P460 Installation and Maintenance Guide

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Casio P460 manual Powering Up, Inserting an Additional PSU, Turning on a Chassis with a Supervisor Module Only