7 990-1062, Revision 1 04/01
SHUTDOWN MODE (VIA SOFTWARE OR AN ACCESSORY)
In shutdown mode, the UPS stops supplying power to the connected equipment, waiting for the return of utility power. If there
is no utility power present, external devices (such as servers) connected to the computer interface or the accessory slot can
command the UPS to shut down. This normally is done to preserve battery capacity after the shutdown of protected servers. The
UPS scrolls the front panel indicators sequentially in shutdown mode.
SMART-UPS REAR PANEL
230V 120V
B
ASIC CONNECTORS
Serial Port
Power management software and interface kits can be used with the UPS. Use only interface kits
supplied or approved by APC. If used, connect the interface cable to the 9-pin computer inter-
face port. Secure the connector screws to complete the connection.
USB Port
Power management software and interface kits can be used with the UPS. If used, connect the
interface cable to the USB port.
Use an APC supplied cable to connect to the Serial Computer Interface Port. DO NOT use a
standard serial interface cable since it is incompatible with the UPS connector.
If both a Serial and USB Computer Interface Port are provided they cannot be used simul-
taneously.
TVSS Screw
The UPS features a transient voltage surge-suppression (TVSS) screw for connecting the ground
lead on surge suppression devices such as telephone and network line protectors.
DEFAULT SETTINGS
Voltage Sensitivity
The UPS detects line voltage distortions (such as spikes, notches, dips, and swells) as well as dis-
tortions caused by operation with inexpensive fuel-powered generators. By default, the UPS reacts
to distortions by transferring to on-battery operation to protect the connected equipment. Where
power quality is poor, the UPS may frequently transfer to on-battery operation. If the connected
equipment can operate normally under such conditions, reduce the sensitivity setting to conserve
battery capacity and service life.
To reduce UPS sensitivity, press the voltage sensitivity button. Use a pointed object (such as a
pen) to do so. Press the button once to set sensitivity to medium. Press it again to set sensitivity to
low. Press the button a third time to reset to high sensitivity. You also can change the sensitivity
level through software.
Brightly lit: UPS is set to high sensitivity.
Dimly lit: UPS is set to medium sensitivity.
Off: UPS is set to low sensitivity.
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