Rs-232 Port - Eaton 9910 User Manual

Table 7. RS-232 Port Pin Assignment
Pin Number Signal Name
1
2 Tx
3 Rx
4
5 GND
6
7
8
9
NOTE Unused pins must remain free on all models.

RS-232 Port

To establish communication between the UPS and a computer, connect
one end of the serial communication cable that comes with the UPS to
the RS-232 port on the UPS. Connect the other end of the serial cable to
the RS-232 port on a computer.
Figure 6 identifies the cable pins and Table 7 describes the pin functions.
Function
Unused
Transmit to external device
Receive from external device
Unused
Signal common (tied to chassis)
Unused
Unused
Unused
Unused
Eaton 9910 UPS and EBM User's Guide
COMMUNICATION FEATURES
5
9
4
8
3
7
2
6
1
Figure 6. RS-232 Port
Direction from the UPS
Not applicable
Out
In
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
S
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