Tektronix TD140, Hardware Maintenance Manual

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TD140 Hardware Maintenance Guide 7.13.2 46
5
TD140 System Operating Specifications Rev. 001-140228
P
OWER AND
H
EAT
Table 5.3
lists the power and heat specifications for the TD140 (Model: 80G, 2-blade, DC,
front-to-back cooling).
AC Rectifier
The TD140 internal power supplies only accept DC power. For TD140 installations requiring
an AC power input, an optional AC rectifier (
Figure 5.1
) can be used to provide -48V DC
output power for the TD140 from an AC source.

IEC320-C20 sockets for AC inputs

Requires IEC320-C19 power cord for AC/DC adapter input
Figure 5.1 - AC Rectifier (Optional)
Table 5.3 - TD140 DC Power and Heat Dimensions
Dimension Value
Maximum current draw 50A (2x 30A breakers on each PEM)
Typical power draw (50-74% traffic) 600W (estimated)
Maximum power draw (100% traffic) 850W (estimated)
Typical heat dissipation (50-74% traffic) 2048 BTU/hr
Maximum heat dissipation (100% traffic) 2901 BTU/hr
Power Inputs -40.5 VDC to -72 VDC
AC Rectifier Front
AC Rectifier Rear
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