PL2303GT USB to RS232 RJ12 6P6C Programming Cable for Unitronics PLC
This PL2303GT USB to RS232 RJ12 6P6C Serial Programming Cable is specially designed for Unitronics PLC controllers, providing a reliable connection between your computer and PLC device for program downloading, configuration, monitoring, and serial communication.
With a high-quality Prolific PL2303GT USB-to-Serial chipset, this cable offers stable data transmission, excellent compatibility, and dependable performance for industrial automation applications.
Key Features
✅ Designed for Unitronics PLC Programming
Compatible with Unitronics PLC devices requiring RJ12 6P6C RS232 communication interface.
Ideal for:
Note: NOT compatible with Unitronics JAZZ series PLC.
✅ Reliable PL2303GT USB Serial Chipset
Built-in PL2303GT chipset provides:
Stable USB to RS232 conversion
Fast and accurate data transmission
Low communication latency
Reliable connection during PLC programming
Excellent compatibility with Windows systems
✅ RJ12 6P6C RS232 Connector
Features a durable RJ12 6P6C modular connector designed for Unitronics PLC communication ports.
Advantages:
✅ Plug & Play USB Connection
Connect your PLC controller directly to a PC or laptop through USB.
Typical connection:
Computer USB Port → PL2303GT USB Converter → RS232 Signal → RJ12 6P6C → Unitronics PLC
No external power supply required.
Technical Specifications
Item | Specification |
Chipset | Prolific PL2303GT |
Interface | USB 2.0 to RS232 |
PLC Connector | RJ12 6P6C Male |
Communication | RS232 Serial |
Cable Length | 1.8M / 3M / Customized |
Cable Color | Black |
Cable Type | Shielded Serial Cable |
Operating System | Windows 7 / 8 / 10 / 11 |
Application | PLC Programming & Communication |
Compatible Applications
Suitable for Unitronics PLC controllers:
Unitronics Vision Series PLC
Unitronics V-Series Controllers
Unitronics Industrial Automation Controllers
Unitronics PLC RS232 RJ12 Communication Devices
⚠️ Important Notice:
This cable is NOT compatible with Unitronics JAZZ series PLC.
Please confirm your PLC model and communication port before purchase.
Package Included
1 × PL2303GT USB to RS232 RJ12 6P6C Programming Cable
Why Choose This Cable?
✔ Professional PLC programming solution
✔ Stable PL2303GT USB serial conversion
✔ Reliable RS232 communication
✔ Durable industrial cable construction
✔ Perfect replacement for original programming cable
✔ Ideal for engineers, technicians, and automation professionals




ABOUT PL2303GT
The new PL2303GT chip is one of the latest G-Series IC product added to the popular PL2303 USB to Serial
(UART) Bridge Controller family, replacing the PL2303RA USB to RS232 serial chip. It provides an advanced
full-featured single-chip bridge solution for connecting a full-duplex UART asynchronous serial interface
device to any Universal Serial Bus (USB) capable host. The PL2303GT provides highly compatible USB
drivers to simulate the traditional COM port (via virtual COM Port) on most operating systems allowing
existing serial UART applications based on legacy COM port to easily migrate and be made USB ready.
PL2303GT integrates a high baud rate RS-232 transceiver that meets the EIA/TIA-232F and CCITT V.28
communications interface specifications. The RS-232 transceiver is a 3-transmitters and 5-receivers device
with a high-efficient charge pump circuit embedded. This high-efficient charge pump circuit with 1uF external
capacitors provides the bipolar output to the transmitters, and makes the transmitters to deliver the RS-232
output voltage levels. Under normal operation, PL2303GT operates at very low power consumption with
guaranteed data rate up to 1000kbps. PL2303GT also has an active-low shutdown indicating pin that can
serve as a shutdown indicator for special application purposes.
The new PL2303GT is pin-to-pin compatible with the PL2303RA chip. It also integrates an RS-232
transceiver, an internal precise clock generator (no external crystal required), USB 1.1 transceiver, Serial
Interface Engine (SIE), LDO voltage regulator, power-on- reset (POR), FIFO data buffers, and OTPROM.
The PL2303GT added several new features and enhancements:
Integrated termination resistors and pull-up resistor to reduce PCB external components.
New USB drivers for different OS platforms with faster performance and advanced features.
Precise baud rate generator (up to 1Mbps).
OTPROM can be programmed directly through USB (no high voltage generator required).
Larger TX/RX FIFO data buffers (1024-byte).
Supports 3.3V VBUS voltage operation.
Unique USB Serial Number for each IC.
4 GPIO pins (all input mode at power-up) with easy to use SDK. Can also be configured as TX/RX access LEDs, and I2C EEPROM (EE_SCL, EE_SDA) interface in OTPROM.
The PL2303GT is designed to support a wide-range of serial RS232 application including mobile,
embedded, industrial, consumer, healthcare, navigation, and wearable solutions in mind. It provides a
small footprint that could easily fit in to any connectors and handheld devices. With very small power
consumption in either operating or suspend mode, the PL2303GT is perfect for bus powered operation
with plenty of power left for the attached devices.
Royalty-Free Driver Support
Windows 10, 8, 7, Vista, XP, (Microsoft Certified WHQL Drivers)
- Windows Update Driver installation available in Windows 7 and above (32/64-bit)
Windows Server 2003, 2008, 2008 R2, 2012, 2016, 2019
Windows Embedded Industry, Point-of-Service (WEPOS), and POSReady
Windows Embedded Compact, Windows Embedded CE, Windows CE
Mac OS X
Linux OS 3.18 and above (Support Linux 5.5 in-box driver and above)
Android 3.2 and above