Eaton Powerware Series User Manual

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COMMUNICATIONEaton FERRUPS Rack Mount UPS (850 VA–7 kVA) User's Guide 164201424 Rev 1www.eaton.com/powerquality43Connecting a Terminal or Computer to the RS-232 PortC A U T I O NDo not make connections to the RS-232 communication port if the UPS is connected to apositive ground battery system. The RS-232 ground must be isolated or equipment damagewill result. For help, contact your service representative.If you are connecting a terminal to the RS-232 port, the terminal must becapable of serial communication.If you are connecting a computer, the computer must be runningterminal emulation software (such as HyperTerminal). Most modemsoftware packages can emulate a terminal; if you do not have a terminalemulation program, please contact your service representative for moreinformation.1. To connect the FERRUPS Rack Mount UPS DB-25S (female)RS-232 port to your terminal or computer, you need a cabledesigned specifically for this purpose (see Figure 11 and Figure 12).Eaton offers cables for computers or terminals using 25-pin or 9-pinserial ports; call your service representative to order one of thesecables. If you would like to build your own cable, follow theserequirements: Use a high-quality, shielded cable. Do not use a standard 25-conductor straight-through cable;only include straight-through connections for the pins shown inFigure 11 and Figure 12.For RS-232 communication, use Pins 2 (transmit data), 3 (receivedata), and 7 (signal ground). For hardware handshaking (request tosend on Pin 4 and clear to send on Pin 5), contact your servicerepresentative. No other pins should be connected from the UPSRS-232 port to your terminal or computer.For more information on pin connections and the function of thenon-serial pins on the RS-232 port, see Table 6 on page 42,“Remote Monitoring” on page 49, and “Remote Shutdown” onpage 50.NOTE To connect a modem, see TIP 503.