Db−9 Communication Port - Eaton BladeUPS User Manual

COMMUNICATION
DB−9 Communication Port
To establish communication between the UPS and a computer, connect
your computer to the UPS communication port using the supplied
communication cable.
When the communication cable is installed, power management
software can exchange data with the UPS. The software polls the UPS
for detailed information on the status of the power environment. If a
power emergency occurs, the software initiates the saving of all data
and an orderly shutdown of the equipment.
The cable pins are identified in Figure 49 and the pin functions are
described in Table 6. See Figure 47 on page 89 for the communication
port location.
Table 6. Communication Port Pin Assignment
92 EATON Powerware
Figure 49. Communication Port
Pin Number Signal Name
2 TxD
3 RxD Receive from external device
5 GND Signal common (tied to chassis)
®
BladeUPSt (12 kVA) User's Guide
5
9
4
8
3
7
2
6
1
Function Direction from the UPS
Transmit to external device
S
164201649 Rev 3 www.powerware.com
Out
In