PSM-DC
Parameter Value Notes
Environmental standards
compliance
l Telcordia SR-3580 Level 3 (NEBS)
l ETSI EN 300 019-1-3 Class 3.1
l IEC 60529 IP20 (indoor office)
Table 21: General Information — PSM-DC
l Environmental Specifications
l MTBF Hours for FSP 3000 C Equipment
l Power
l Slot Numbers and Assignments
l SH12 Shelf
Features
l Is field replaceable and hot-swappable
l Supplies the required power to the shelf in a load-sharing mode
l Continual monitoring of input/output voltage and current and alarm generation if
threshold levels are exceeded
l Equipped with a hiccup mode that turns off a PSM-DC if there is a short circuit on the
12 V distribution
l Power
l SH12 Shelf
Specifications
Power cable See DC Power Cable Specifications
Nominal/rated input voltage –48 VDC
Operating input voltage –39.5 to –72 VDC
Nominal/rated input current 27.16 A at –48 VDC
Maximum input current 34.5 A at –40 VDC
Inrush current Does not exceed 1.5X rated input current
Power consumption
Typical:70 W
Maximum:120 W
Typical efficiency 94%
Maximum output power 1200 W
Nominal output voltage 12.2 VDC
Table 22: Electrical Specifications — PSM-DC
60 FSP3000 C Hardware Guide - R1.1 - Issue:A (12/09/2016)