DNR-X-1G Series RACKtangle and HalfRACK Systems
Chapter 3 35
The DNR-6-1G Series HalfRACK System
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United Electronic Industries, Inc.
3.9 DNR-6-1G DC
Power
Thresholds
Table 5-1 lists the DC power threshold specifications for DNR-6-1G HalfRACK
systems.
Table 5-1 DC Power Thresholds for DNR-6-1G HalfRACK Systems
Backplane
Power Rail
Voltages
Turn-on
Voltage, V
1
Reset
Voltage, V
Turn-off
Voltage, V
2
Notes
Logic power
supply
+3.3V, +2.5V,
+1.5V, +1.2V
7.5 7.2
(When Vin is
below 7.2V, a
voltage reset
puts all
boards into
reset mode.)
7.0 Supplies power to all CPUs
and FPGAs. DNR can com-
municate with Ethernet
when CPU is functional
Analog power
supply
+24V 8.5 - 7.8 Analog power supply is
used as a regulated source
for on-board DC/DCs on
most boards
Fan power
supply
+12V 8.5 - 8.4
On-board
DC/DCs that
use input
power
+VIn 7.8-8.8 - 7.5-8.5 Varies with board type
1. Turn-on, V: The value of Vin at which the corresponding DC/DCs are turned on.
2. Turn-off, V: The value of Vin at which the corresponding DC/DCs are turned off.
A DNR-6-1G CPU/NIC core module consumes only 70mW when Vin is below 7V.
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