East EA900Pro Series, Руководство по эксплуатации, Страница: 11 / 27

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4 Network Functions
4.1 Communication port
Users could monitor the UPS system through the communication port such as
standard RS232 port and USB port with computer. Connecting this UPS with
computer by communication cable could achieve UPS management easily.
> RS232 port
：
Pins 1 2 3 4 5 6 7 8 9
Indication empty send receive empty ground empty empty empty empty
> USB port
：
Pins 1 2 3 4
Indication +5V date+ date- GND
4.2 EPO port
（
optional
）
Normally, pin1 and pin2 are connected so that the machine can be working normally.
When some emergencies happen, and when users have to cut off the output, just
need to disconnect the connection between pin1 and pin2, or just pulling it out.
Note:
RS232 interface is set as below:

Bit rate: 2400bps

Byte: 8bit

Completion code: 1bit

Bit pattern: None
EPO is the short for Emergency Power Off. EPO port is
on the rear panel of the UPS. It’s green. Users can cut
off the output of UPS immediately by operating EPO port
in case of emergency.