Issue 8.0 July 2002 4-1
4
Power 4
Overview 4
This section describes the power distribution and dissipation of the FT-2000
OC-48 Lightwave System.
General 4
The FT-2000 OC-48 Lightwave System power distribution philosophy is based on
individual rather than bulk power supplies. Each circuit pack contains DC-to-DC
converters that change the office battery voltages to the voltages required. This
leads to improved system reliability, since heat is dissipated uniformly across the
system avoiding "hot spots."
The FT-2000 OC-48 Lightwave System is powered by −48 V DC. The voltage
range for all the components is −42.75 to −60 V DC as measured at the power
feeder inputs and returns at the bay.