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5. Connection and Operation
(6) The "+" terminal of the battery. The black wire is connected to the "-" terminal of the
battery. (Note: the green/yellow wire is grounded for protection purpose.)
(7) Do not connect the UPS to any load yet. Then, connect the power cord of the UPS to
supply utility power to the UPS to make the UPS operation in utility power mode.
(8) Plug the external battery cord to the external battery socket on the rear panel of the
UPS to complete the connection procedure and the UPS will start to charge the battery
pack.
The Caution!
The output sockets of the UPS system may still be electrically live even if the power
supply system has been disconnected or the Bypass switch is on “OFF” position.