Eaton Electrical 9130 User Manual
COMMUNICATION
Eaton
®
9130 UPS (700–3000 VA) User's Guide
S
164201718 Rev 2
www.powerware.com
55
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.
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 for the RS-232 communication port are identified in
Figure 19, and the pin functions are described in Table 4.
Figure 19, and the pin functions are described in Table 4.
3
8
7
9
1
6
2
4
5
Figure 19. RS-232 Communication Port (DB-9 Connector)
Table 4. RS-232 Communication Port Pin Assignment
Pin Number
Signal Name
Function
Direction from the UPS
1
DCD
Battery Low signal
1,3
Out
2
RxD
Transmit to external device
Out
3
TxD
Receive from external device
2
In
4
DTR
PnP from external device (tied to Pin 6)
In
5
GND
Signal common (tied to chassis)
—
6
DSR
To external device (tied to Pin 4)
Out
7
RTS
No connection
In
8
CTS
On Battery signal
1,3
Out
9
RI
+8-12 Vdc power
Out
1
2
If Pin 3 receives a Low (+V) signal for >5 seconds, the UPS executes the command selected by the “Signal Inputs”
3
When the selected condition is active, output signals on Pins 1 and 8 shift from Low (positive voltage) to High
(negative voltage). When the condition no longer exists, the output signal returns to Low.