Avaya 1 Series Site Preparation, Installation And Operator's Manual page 70

Communication
Even though your network uses the specified signal lines, the pins
assigned to these signals at the network end of the cable may vary with
those of the UPS serial port. The connector body and style may vary as
well.
The UPS serial port complies with EIA RS-232 standards. RS-232
specifies a maximum cable length of 50 feet (15m). See Figure 23 for the
location of the serial port.
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NOTE Standard, pin-for-pin cables may not work correctly. Consult your network
software or server manuals for system shutdown pin assignments.
Serial
Port
Avaya Model 3000 UPS Operator's Manual
UPS Rear Panel
Serial Port Detail
Figure 23. Serial Port Location
S
167-405-119 Issue 6 Uncontrolled Copy