Dell 1000W User Manual page 57

Table 9. RS-232 Communication Port Pin Assignment
Pin Signal Name
1
2
3
4
5
6
7
8
9
*Unused pins must be left free on all models.
Tx Transmit to external device
Rx Receive from external device
GND Signal common (tied to chassis)
Function
Unused
Unused
Unused
Unused
Unused
Unused
Additional UPS Features
Direction from the UPS
—
Out
In
—
—
—
—
—
—
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