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22 Eaton Tripp Lite SmartOnline Series User Guide 614-40204—Rev 01
Table 9. Communication Port Pinouts (Continued)
Pin 4: not on battery Pin 9: on battery
Pin 5: user common
n.o.: contact normally open
n.c.: contact normally closed
!
IMPORTANT
The relay output contacts must not be connected to any utility-connected circuits. Reinforced insulation to the
utility is required. The relay output contacts have a maximum rating of 250 Vac/5A.
44..77 UUPPSS RReemmoottee CCoonnttrrooll FFuunnccttiioonnss
RReemmoottee OOnn//OOffff
Figure 11. Normally Open ROO
• Remote On/Off allows for remote activation of the button to switch the UPS On/Off.
• When contact changes from open to closed, the UPS is switched on (or stays on).
• When contact changes from closed to open, the UPS is switched off (or stays off).
• On/off control via the
button has priority over the remote control.
RReemmoottee PPoowweerr OOffff
RPO is used to shut down the UPS remotely when the contact is open. This feature can be used for shutting
down the load and the UPS by thermal relay, for instance, in the event of room over temperature. When RPO is
activated, the UPS shuts down the output and all of its power converters immediately. The UPS remains on to
alarm the fault. The RPO circuit is an IEC 60950 safety extra low voltage (SELV) . This circuit must be separated
from any hazardous voltage circuits by reinforced insulation.
• The RPO must not be connected to any utility-connected circuits. Reinforced insulation to the utility is
required. The RPO switch must have a minimum rating of 27 Vdc and 20 mA and be a dedicated latching
type switch not tied into any other circuit. For proper operation, the RPO signal must remain active for at
least 250 ms.
• To ensure the UPS stops supplying power to the load during any mode of operation, the input power must
be disconnected from the UPS when the Remote Power Off function is activated.
Leave the RPO connector installed in the RPO port on the UPS even if the RPO function is not utilized.
RPO Connections:
UPS Remote Control Functions
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