OPTI-UPS ES1500C - Manual (Page 17)

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2.5 Communication Port (Remote Port)
The communication port on the rear panel of the UPS allows for connection to
a host computer. When used with software communication software you will
have access to important operating information. From your computer screen,
you can monitor input/output voltage, AC frequency, battery voltage, etc., and
analyze power problems. Software will also initiate automatic graceful
shutdowns during extended power failures.
If software and a communication cable are not included in your UPS package,
you can purchase it from your local dealer.
2.6 Data-Line Surge Suppression
The data-line surge suppression on the rear panel provides an easy way to
protect a network (RJ45) or modem (RJ11) connection from hazardous spikes.
Connect a network cable or a single line telephone into the “Line” socket. To
complete the connection, connect another network cable or telephone line into
the “System” socket.
2.7 AC Input
Connect the AC power cord into the AC Input socket. UPS can have power
from commercial electricity. It has a circuit breaker to protect over current.
* ES550C/800C 100/110/120V model has a power strip on the rear panel
* ES550C/800C 220/230/240V model use fuse to protect over current.
2.8 Output outlet
There are two kinds function output outlets:
1.Bypass : These output outlets offer surge protection only. It won’t have back
up power at inverter mode.
* For ES550C/800C only
2.UPS outlet : These output outlets not only offer surge protection but also back
up power to your main equipments at inverter mode.