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990-1137, 3/02 2
2. CONNECT THE EXTERNAL BATTERIES
3. C
ONNECT THE EQUIPMENT TO THE UPS AND CONNECT THE UPS TO THE AC POWER
S
UPPLY
1. On the back panel, plug the female end of the power cord into the receptacle. Then plug the
male end into a two-pole, three-wire, grounding receptacle. Avoid using extension cords and
adapter plugs.
2. Connect the equipment to the UPS using the power cords provided with the equipment.
3. Turn on all connected equipment. To use the UPS as a master ON/OFF switch, be sure all con-
nected equipment is switched on. The equipment will not be powered until the UPS is turned on.
4. T
URN ON THE UPS
Make sure the battery is connected before turning on the UPS! Press the button on the front
panel to power up your UPS. This will power up connected equipment if that equipment is turned
on.
The UPS charges the batteries when it is connected to utility power. Do not expect full
run time during this initial charge period. Time depends on number and type of batter-
ies.
The unit performs a self-test automatically when turned on and every two weeks thereafter (by de-
fault). Refer to the User Configurable Items section of this manual, below, for details on changing
the default interval.
To turn on the UPS when no utility power is present, see the Cold Start function in the Operations
section of this manual.
Battery
Connector
On Rear
Panel
Ste
p
A
Ste
p
B
1. Refer to www.apc.com/support
for the Smart-
UPS On-Line Battery Pack User Manual (990-
1083).
2. If using a non-APC battery pack, a 48V battery
string should be wired to the UPS using the en-
closed battery cable assembly.
Batteries must be Sealed Lead-Acid type.
Each string of four 12V batteries must be
provided with an 80-100 amp fuse or fuse-
able link to protect in the event of a short
circuit.
48 Volt S
y
ste
m
80-100
Amp
Fuse