Adva 3000R7 - Power

SH12 Shelf
EQUIPMENT DAMAGE MAY RESULT IF THE SHELVES
OPERATE WITH OPEN OR EMPTY SLOTS.
To ensure proper airflow and cooling, all slots must be filled with
either a module or a slot cover at all times. When you replace
modules, make sure the time allotted between removal and
replacement is within one minute. If slots are left open or empty,
temperatures increase inside the shelf. If the temperature rises higher
than what a module can tolerate, it shuts down.
When you replace FTMs, make sure the time allotted between
removal and replacement is within one minute. However, if the
system is in thermal distress, that is the ambient temperature is
higher than 40°C (104°F), wait until the ambient temperature drops
before you replace the modules.
If you install the SH12 in a cabinet, keep in mind that a single,
populated SH12 needs a minimum airflow of 750 CFM. See
Supported Rack Requirements for important supported installation
features and requirements.
l Clearance Requirements
l Heat Dissipation
l FTM-2
l Air Filter Pads
Power
The HDsystem supports a centralized power-supply architecture. The PSMs convert the
external DC or AC power to internal 12 VDC, which the system distributes to all modules
through the backplane.
The PSMs work in a redundant power configuration and supply the required power to the
shelf in a load-sharing mode. If a PSM fails, the remaining PSMs continue to supply
power to the entire shelf. You can then replace the failed PSM.
Type Configuration Slots
PSM1 PSM2 PSM3 PSM4
Redundant 1+1 PSM-DC — — PSM-DC
PSM-AC6 — — PSM-AC6
2+1 PSM-DC PSM-DC — PSM-DC
PSM-AC6 PSM-AC6 — PSM-AC6
3+1 PSM-DC PSM-DC PSM-DC PSM-DC
PSM-AC6 PSM-AC6 PSM-AC6 PSM-AC6
Table 4: SH12 Supported Power Configurations
FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B 36