Adva 3000R7 - Features; Specifications

PSM-DC
l Environmental Specifications
l MTBF Hours for HD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 Continually monitors input and output voltage, current, and alarm generation to
determine if threshold levels are exceeded
l Is equipped with a hiccup mode that turns off a PSM-DC if a short circuit on the 12 V
distribution is detected
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 27.2 A at –48 VDC
Maximum input current 34.5 A at –40 VDC
Inrush current Less than 5.7A
Power consumption Typical:70 W
Maximum:120 W
Typical efficiency 94%
Maximum output power 1200 W
Nominal output voltage 12.2 VDC
Maximum output current 100 A
Recommended external circuit
breaker
l –48 VDC: 36 to 40 A
l –60 VDC: 28 to 40 A
Recommended external fuse
l –48 VDC: 40 A
l –60 VDC: 35 A
Minimum hold-up time Not supported
Table 44: Electrical Specifications — PSM-DC
107 FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B