The AC power module supports the lamp test procedure and has fans that are directly powered by the module.
The fans cool the module and guarantees proper operation across the complete operating temperature or output
power range. These fans contain replaceable air-filters.The AC power module draws power from the power
lines to turn on the ONS 15454 M6 shelf. See
AC Power Specifications, on page 476
for the power specifications
of the AC power modules.
Each AC power module has one AC single-phase 3 poles (line L, Neutral N, and Protective Earth PE) input
connector.
The AC power module has a dual color (red and green) LED on the faceplate to represent the different states
of the AC power module, which are controlled by the shelf controller card. The different states are:
• LED is OFF. Indicates that the AC power line is not connected.
• LED is green. Indicates that the AC power line is functioning correctly.
• LED is red. Indicates that the AC power line is connected but there is a failure due to a secondary fuse
break (48 V DC) or failure of the fan in the AC module.
However, the LED states (OFF/red/green) can be overwritten by the shelf controller card (TNC, TNCE, TSC,
or TSCE).
For the 15454-M6-AC2 power module, the power consumption of the ONS-15454-M6 shelf (including
ancillaries, controller cards, and line cards) is limited to 1200 W. If the power consumption of the shelf exceeds
1200 W, a new line card, when it is installed in the ONS-15454-M6 shelf, will not boot up. This is indicated
by the PWR-CON-LMT alarm that is raised in the Alarms tab of CTC when the installation or pre-provisioning
of a card causes the power consumption to exceed the limit of 1200W. The 15454-M6-AC2 has a maximum
capacity of1500 W for 230 Vin and 1200 W for 110 Vin.
Changing the AC Power Module
It is possible to change the power modules of the ONS 15454 M6 system, from 15454-M6-AC to
15454-M6-AC2, and vice-versa, without powering down the ONS 15454 M6 system. While changing the
power modules, ensure that only one power module is replaced at a time, and the other power module continues
to supply power to the shelf. However, during regular operation of the node, the ONS 15454 M6 shelf must
have either the 15454-M6-AC or 15454-M6-AC2 power module, but not both. See
15454-M6-AC With 15454-M6-AC2 Power module, on page 358
and
DLP-G758 Replacing 15454-M6-AC2
With 15454-M6-AC Power module, on page 359
for changing the power modules.
DC Power Module
The ONS 15454 M6 system can be powered by redundant DC power modules or a single DC power module.
The supported DC power modules on the ONS 15454 M6 shelf are 15454-M6-DC, 15454-M6-DC20, and
15454-M6-DC40.
The DC power module does not support the lamp test procedure.
The DC power module draws power from the batteries to turn on the ONS 15454 M6 shelf. See
for the power specifications of the DC power modules.
Each DC power module has:
• One input battery connector (three poles) —VBAT, VRET, and FGnd for ETSI installation
• Terminal block connector with VBAT and VRET for ANSI installation
The DC power module has a dual color (red and green) LED on the faceplate to represent the different states
of the AC power module which are controlled by the shelf controller card. The different states are:
Cisco ONS 15454 Hardware Installation Guide
353
Installing the ONS 15454 M6 Shelf
Changing the AC Power Module
Summary of Contents for ONS 15454
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