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Connecting a Terminal or Computer to the RS-232 Port
C A U T I O N
Do not make connections to the RS-232 communication port if the UPS is connected to a positive ground battery system. The RS-232 ground must be isolated or equipment damage will result. For help, contact your service representative.
If you are connecting a terminal to the RS-232 port, the terminal must be capable of serial communication.
If you are connecting a computer, the computer must be running terminal emulation software (such as HyperTerminal9). Most modem software packages can emulate a terminal; if you do not have a terminal emulation program, please contact your service representative for more information.
hd To connect the FERRUPS UPS DB-25S (female) RS-232 port to your terminal or computer, you need a cable designed specifically for this purpose. (See Figure 10 and Figure 11.) Powerware offers cables for computers or terminals using
25-pin or 9-pin serial ports; call your service representative to order one of these cables. If you would like to build your own cable, follow these requirements:
:Use a high-quality, shielded cable.
:ioc c
only include straight-through connections for the pins shown in Figure 10 and Figure 11.
For RS-232 communication, use Pins 2 (transmit data), 3 (receive data), and 7 (signal ground). For hardware handshaking (request to send on Pin 4 and clear to send on Pin 5), contact your service representative. No other pins should be connected from the UPS RS-232 port to your terminal or computer.
For more information on pin connections and the function of the non-serial pins on the RS-232 port, see Table 5 on page 40 and “Remote Monitoring” and “Remote Shutdown” on page 47.
NOTE To connect a modem, see TIP 503.
Powerware® FERRUPS FE/QFE UPS (500 VA–18 kVA) User’s Guide : Rev A www.powerware.com | 41 |
