Section VI
Control Interface Details
006-0006205
UPS-1500 Series
Rev ZC
50 of 60
05/28/2019
RS232 Serial Interface
The same User I/O female high-density DB15 connector also provides for an RS232 interface
between the UPS and the host/system computer. The interface has a 115.2k baud with eight
data bits, no parity bit and one stop bit. The pin assignments and functions for this RS232
interface are as follows:
Signal
Pin Number
Function
GND
4 and 5
Ground reference for RX and TX signals
RX
3
RS232 DCE/UPS Device Receive signal
TX
2
RS232 DCE/UPS Device Transmit signal
The RS232 port provides readback of UPS’s state, as well as the configuration and control of the
UPS’s operation. The port can be used from a standard terminal interface, or from a custom
computer application.
DC2
Output
Option
UPS-1500-S-1U with DC1 Output/DC2 Output Option
DC1
Output
Option
DC1
Output
Option
Ethernet
Port
Ethernet
Port
AC
Output
AC
Output
Exhaust
Fan
Exhaust
Fan
Exhaust
Fan
Exhaust
Fan
I/O
Port
I/O
Port
User
Config
Port
User
Config
Port
Ground
Stud
(1/4-20)
Ground
Stud
(1/4-20)
DC
Input
Option
AC
Input
AC
Input
AC
Circuit
Breaker
AC
Circuit
Breaker
UPS-1500-S-1U with DC Input/DC1 Output Option
Air intakes
Status Indicator Panel
Status LED
On/Off
17.00"
1.73"
1U
UPS-1500-S-1U