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Chapter 6. Communication
Communication ports
Connecting RS232 or USB communication ports
About this task
Note: The RS232 and USB communication ports cannot operate simultaneously.
Procedure
1. Connect the RS232
2. Connect the other end of the RS232
Results
The UPS can now communicate with Lenovo power management software.
Relay output contacts
The UPS incorporates four relay outputs; each one is available with a normally
closed or open contact.
n.o.: contact normally open
n.c.: contact normally closed
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port on the computer.
RS232
or USB
communication port on the UPS.
or USB
communication cable to the serial or USB
or USB
Status active information: (if contact between
pin and common is closed)
v Pin 1: not on Bypass
v Pin 2: load not protected
v Pin 3: not low battery
v Pin 4: not on Battery
v Pin 5: user common
v Pin 6: on Bypass
v Pin 7: low battery
v Pin 8: load protected
v Pin 9: on Battery
communication cable to the
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