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M-spv/m-spx front panel port, The m-ps power supply unit, M-ps indicator – Avaya M770 User Manual

Page 24: Power budget considerations, M-ps indicator power budget considerations, M-ps status led

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Chapter 3

Avaya M770 Hub Components

14

Avaya M770 User’s Guide

M-SPV/M-SPX Front Panel Port

The RJ-45 Console port on the M-SPV/M-SPX is used for terminal setup.

The M-PS Power Supply Unit

At least one M-PS Power Supply unit is necessary for the operation of the
Avaya M770 but up to three M-PSs can be installed in the hub.
For more detailed information about the Power Supply please refer to the M-PS
Installation Guide.

M-PS Indicator

In addition to the PS status LEDs on the control panel of the Avaya M770 hub, each
M-PS has a LED indicator on its rear panel for viewing its status at a glance during
insertion and replacement of M-PSs.

Table 3.5

M-PS Status LED

Power Budget Considerations

The recommended Avaya M770 configuration is two M-PS units, plus a third unit
for redundancy. Such a configuration supports any number of DomainX and Avaya
M440 modules in the hub.
If there is only one M-PS unit available, the maximum number of modules in the
hub is based on the following guidelines

1

:

5 or less DomainX modules, or

4 or less DomainX modules with 2 or less Avaya M440 modules,

3 or less DomainX modules with 5 or less Avaya M440 modules.

Two M-PS power supplies support any combination of Avaya M440 and DomainX
modules. For redundancy it is recommended to install the third M-PS as well.

LED Name

Represents

State

Function

STATUS

Power Status

Green

Module is functioning normally

Amber

Module is faulty

1The guidelines take into consideration a maximum power consumption of
60W@48V for each DomainX module and 20W@5V for each Avaya M440 module.
The sub-systems’ power consumption (M-SPV/M-SPX, redundant M-SPV/M-SPX,
fans, backplanes) was also already taken into consideration.