Communication 5
UPS Communications Interface Port
In addition to configuring the UPS for specific communication options, you must also ensure proper use of the serial port when connecting the UPS to your network or monitoring equipment
iNOTE Semiconductor switch contacts are rated at a maximum current of 50 mA and a maximum of +40 Vdc across the contacts. Do not apply any negative voltage to these contacts.
Use only the pins specified for your communications configuration The use of any additional pins for any of the following interfaces can cause interference with system communications
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
iNOTE Standard, pin$for$pin cables may not work correctly. Consult your network software or server manuals for system shutdown pin assignments.
The UPS serial port complies with EIA RS*232 standards RS*232 specifies a maximum cable length of 0 feet See Figure21 for the location of the serial port
US Rear anel
Serial ort
Serial ort Detail
Figure 21. Serial Port Location
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