This USB to RS232 serial communication cable is designed for connecting APC Smart-UPS systems to a computer through the UPS DB9 serial communication port.
Featuring a Prolific PL2303GT USB-to-serial chipset and a DB9 9-pin male connector, this cable provides a USB interface for UPS monitoring, communication, and management.
It is designed to be compatible with the APC 940-0024C Smart-Signaling cable specification and can be used with compatible UPS management software, including APC PowerChute.
Chipset: Prolific PL2303GT
Interface: USB to RS232
USB Connector: USB Type-A
Serial Connector: DB9 Male (9-Pin D-Sub)
Cable Standard: APC 940-0024C Compatible
Communication: APC Smart-Signaling Serial Communication
Application: UPS Monitoring and Management
Designed for compatible APC UPS models with a DB9 serial communication port, including selected:
APC Smart-UPS series
APC Smart-UPS SUA series
APC Smart-UPS SUM series
APC Smart-UPS SURT series
Other compatible APC UPS models using the 940-0024C serial interface
APC UPS status monitoring
Battery status and power condition monitoring
UPS communication with computers
PowerChute software connection
UPS configuration and management
Industrial power backup system maintenance
Interface: RS232
Cable Type: APC Proprietary Smart-Signaling
Reference Cable: 940-0024C
Software: APC PowerChute and compatible UPS management software
Prolific PL2303GT drivers are available for:
Windows 11
Windows 10
Windows 8.1
Windows 7
This cable follows the APC 940-0024C Smart-Signaling wiring specification, not a standard DB9 straight-through serial cable.
Please verify that your UPS has a compatible DB9 serial port before ordering.
Some newer APC UPS models use a keyed RJ45 serial interface and require a different cable.
Compatible UPS management software is required.
Please check your UPS model and serial port before purchasing.
