Tycon Power UPS-ST2424-50-UBNT - Manual (Page 4)

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troller to the back green connector on the 5 port switch. You can use
the included cable with terminal connectors by cutting off terminal con-
nectors and then cutting and stripping cable to proper length. Observe
proper polarity for all connections.
Note: There are two +V and two V- (GND) connections on the controller
and the switch. You can use either connection. The FG connection is
for frame ground or earth ground. If your grounding scheme requires it
you can connect the FG to the enclosure ground point near the bottom
of the door. The FG is common to the RJ45 shield.
TP-SCPOE Controller TP POE Switch
STEP 9: Install the batteries in the enclosure. Batteries are 12V
batteries and need to be connected in series for 24VDC output.
24V two batteries and 24V four batteries configurations are shown here: