Installation Before Installation
32 ATCA−S100
Location Temperature
1max. 88°C
2max. 91°C
3max. 90°C
4max. 92°C
5max. 60°C
Power Requirements
Make sure that the blade is used in an AdvancedTCA shelf connected to −48VDC up to
−60VDC, according to Telecommunication Network Voltage (TNV−2).
The blade must be connected to a TNV−2 circuit. A TNV−2 circuit is a circuit whose
normal operating voltages exceed the limits for a safety−extra−low−voltage (SELV) under
normal operating conditions, and which is not subject to overvoltages from
telecommunication networks.
On blade voltages are 12VDC, 5VDC, 3.3VDC, 2.5VDC and 3.3VDC IPM power:
S12V voltage is generated from the –48V AdvancedTCA power by a quarter−brick
150W DC−DC converter with galvanic isolation suitable for TNV−2 circuits.. Power
control is accomplished by the IPMC.a
S5V, 3.3V and 2.5V voltages are derived from the 12V power. It is available after
powering the 12V by the IPMC.a
SThe IPM controller is supplied by the 3.3V Management Power. The IPM controller
enables the 12V DC−DC converter via an isolated signal. The IPM power will only
supply the IPMC, it is not connected to the 3.3 voltage of the blade.
Table 6: DC System Power Requirements
Feature Value
Rated Voltage −48VDC to −60VDC
US and Canada: *48VDC
Operating Voltage −40.5VDC to −72VDC
US and Canada: *40.5 to *60VDC
Input current 1,25 A at 48V
Storage Blade Power Dissipation 60W up to 75W (max)
The blade provides two independent power inputs according to the AdvancedTCA
specification. Each input has to be equipped with an additional fuse of max. 90A located
either in the shelf where the blade is installed or the power entry module (PEM).