Chapter 5. Communication
Communication ports
Connecting the RS232 or USB communication port (optional)
About this task
Note:
The RS232 and USB communication ports cannot operate simultaneously.
Procedure
1.
Connect the RS232
or USB
communication cable to the serial or USB
port on the computer equipment.
2.
Connect the other end of the communication cable
or
to the USB
or
RS232
communication port on the UPS.
Results
The UPS can now communicate with Lenovo power management software.
Characteristics of the contact communication port (optional)
Pins 1, 3, 4, 5, 6, 10: not used
Pin 2: common (user)
Pin 7: low battery
Pin 8: operation on battery power
Pin 9: UPS ON, equipment supplied
n.o.: normally open contact
When a signal is activated, the contact is closed between the common (pin 2) and
the pin for the corresponding signal.
Contact characteristics (optocoupler):
v
Voltage: 48 V DC max
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