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ATLAS 890 AC POWER SUPPLY
1. Remove the cover plates from option slots 16 and 17 by
removing the two screws.
Power supplied is the correct voltage
and polarity; backplane and hot
2. Ensure there is no power cord attached to the power
insertion voltages correct.
A temperature or power failure
3. Insert power supply into ATLAS 890 option slot 16.
condition is active.
(Redundant AC power supply will occupy slots 14 and 15.)
4. Secure the thumbscrews at both edges of the power
supply. Tighten with a screwdriver.
5. Connect the power cord to the unit.
Red (fast blink)
Power failure condition active. A
power failure condition takes
6. Switch the power supply ON.
precedence over other failures; both a
7. To view the status of the AC Power Supply, use the
power and temperature failure
System Controller terminal menus (see ATLAS 890
condition results in a fast blinking
System Controller Quick Start Guide , 61200322L1-13A)
and navigate the following path:
Amber (slow blink)
System Status/System Alarms
47 to 63 Hz; 90 to 130 VAC
If power is applied to the ATLAS 890 unit and there is no
active Controller, the front panel LEDs will be in an
0 to 50 °C
indeterminate state. The controller must complete its power
-20 to 70 °C
up sequence before the LEDs are valid.
0% to 95% noncondensing
90 ± 5 °C
The ATLAS 890 AC Power Supply furnishes the voltages
necessary for proper backplane operation. The AC Power
Supply also provides the voltages that enable hot insertion of
Short Circuit Protection
the option cards and system controller modules.
FCC Part 15, UL 60950
Double pole/neutral fusing.
Quick Start Guide, 61200344L1-13B, October 2001
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