The DSC 8000 supports three hot-swappable Power Modules (PMs). The DSC 8000 platform is configured for N+1 redundancy. N+1 redundancy is achieved by having PM4 installed. PM4 is the backup Power Module for PM1 and PM2. If PM1 or PM2 should fail, PM4 picks up the load previously carried by the failed module.
For the location of the PMs in the chassis, refer to Figure DSC 8000 Inter-shelf Connections.
Power Module Front Panel Layout (1100W DC)
The following spare or replacement PM can be purchased from Ribbon:
Part Number Details
Part Number | Description |
---|---|
301Q098570 | 1100W, DC PM for MTCA.4 |
A DCS 8000 operating in an N+1 redundant PM configuration does not have to be powered down when replacing one PM. However, if the chassis is operating in a non-redundant PM mode (that is, only one PM installed), the system must be powered down before replacing the PM.
Empty PM slots must be filled with a double-wide, full-size air management blade (AMB) to ensure proper Electromagnetic Field (EMF) shielding and cooling of the DSC 8000. For more information about the supported Air Management Blades, refer to Table Supported Air Management Blades (AMB's).
PM maintenance should only be performed by trained personnel. When the system is powered up, high voltages are present in the PEM and parts of the PM. Do not reach into the enclosure.
All PMs must be of identical make and model. If changing the make or model, power must be removed from the DSC 8000 chassis and all supplies must be replaced.
An Air Management Blade is required in an otherwise empty slot. Failure to cover an open slot can cause overheating of PMs, cards, or other components, and can damage the system.
If the DSC 8000 does not have an N+1 redundant PM configuration (that is, no PM4 installed), turn the power to the chassis OFF before removing the PM.
The DSC 8000 with N+1 redundant PM configuration does not require the power be turned OFF when removing only one PM.
The hot-swap LED blinks to indicate that the handle is open and the PM is waiting to be deactivated. It is not safe to extract the card in this state.
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If the DSC 8000 does not have an N+1 redundant PM configuration (that is, no PM4 installed), turn the power to the chassis OFF before removing the PM.
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Do NOT over tighten screws past initial contact with the extended flanges. Over tightening the screws can result in damage to the card and chassis.