Filter
Top Products
Connecting the UPS
19
NXA-UPS1500 Uninterruptible Power Supply
RS-232 Communication Port Pin Assignment
The NXA-UPS1500 provides a DB9F (9-pin female) connector to communicate via RS-232. The pinout
configuration for the RS-232 Communication Port connector is shown in FIG. 20:
FIG. 20 RS-232 Communication Port Pin Assignment
RS-232 Communication Port Pin Assignment
Pin Assignment Description
1n/c
2 UPS TX signal
3 UPS RX signal
4n/c
5 GND (ground)
6n/c
7n/c
8n/c
9n/c
5
4
3
2
1
9
8
7
6
(Male)
NetLinx
(Female)
5
4
3
2
1
9
8
7
6
UPS
Pin 2: TX signal
Pin 3: RX signal
Pin 5: GND
Pin 2: RX signal
Pin 3: TX signal
Pin 5: GND
RX (Pin 2)
TX (Pin 3)
GND (Pin 5)
TX (Pin 2)
RX (Pin 3)
GND (Pin 5)