Specifications from the Prolon RS485 Converter (PL-485-BT) datasheet REV 7.1.2 (PL-DATA-BT-C/F-EN), reviewed 2026-09-25.
The PL-485-BT can be used as a portable, battery-powered communication tool, or fixed in place and powered over USB for permanent wireless access. A custom RJ45 jack gives a plug-and-play connection to Prolon controllers, and a removable terminal block provides DATA+, DATA- and GND terminals.
Best For
- Commissioning and servicing Prolon controllers from a smartphone or tablet
- Connecting a PC to a Prolon RS485 network over USB
- Permanent wireless access to a Prolon network with the converter fixed in place and USB powered
- Contractors who need a portable, battery-powered connection tool
Warranty
Key Features
Bluetooth Low Energy 4.0
Bluetooth 4.0, also known as Bluetooth LE, for reduced battery consumption, with a range of up to 330 ft (100 m).
Smartphone, Tablet or PC
Views and configures a Prolon control system from a phone or tablet with the free Focus app, or from a PC as a USB to RS485 converter.
Isolated USB
USB is electrically isolated from RS485 to prevent potentially hazardous ground loops.
Long Battery Life
Constant communication for approximately 15 hours on a single charge, a full charge from empty in 2 to 3 hours, and no battery consumption with the power switch off.
Plug-and-Play Connection
A custom RJ45 jack connects directly to Prolon controllers, with a removable screw type terminal block for DATA+, DATA- and GND.
Status LEDs and Software Setup
Built-in LEDs show RS485 transmit and receive, power status and Bluetooth activity. Factory reset and passkey modification are available over software.
ZOT Supply is an authorized distributor of Prolon products.
Technical Specifications
| Wireless | Bluetooth Low Energy v.4.0, GFSK Protocol, 2.4 GHz, 1 Mbps |
| Bluetooth Range | Up to 330 ft. (100 m) |
| RS-485 | 2-Wire with removable terminal block and RJ45 jack |
| Baud Rates | Configurable 9600, 19200, 38400, 57600 (default), 115200 bps |
| USB | USB 2.0, Connector Type B, Isolated from RS485 |
| Battery | Lithium-Ion 3.7 V, UL Certified |
| Battery Life | Constant communication for approximately 15 hours on a single charge |
| Charge Time | Empty battery fully charges in 2 to 3 hours |
| Antenna | Internal (PCB Trace) |
| Indication Lights (LED) | RS485 transmit and receive, power status and Bluetooth activity |
| Dimensions | 4 x 3 x 1.25 in. (102 x 76 x 32 mm) |
| Weight | 0.45 lb (0.20 kg) |
| Environment | -40 to 185 °F (-40 to 85 °C), non-condensing |
| Certification | RoHS, FCC part 15: 2012 class B |
| Country of Origin | Canada |
Documentation
Frequently Asked Questions
What does the Prolon PL-485-BT do?
It converts Bluetooth 4.0 to RS485 so a smartphone or tablet can view and configure a Prolon control system with Prolon's free Focus software application. It also works as a general purpose USB to RS485 converter for a PC.
What is the Bluetooth range of the PL-485-BT?
Up to 330 ft (100 m).
How long does the PL-485-BT battery last?
Approximately 15 hours of constant communication on a single charge. An empty battery fully charges in 2 to 3 hours, and there is no battery consumption with the power switch off.
Can the PL-485-BT be installed permanently?
Yes. It can be fixed in place and powered via USB for permanent wireless access, or used as a portable, battery-powered communication tool.
How does the PL-485-BT connect to a Prolon controller?
Through a custom RJ45 jack for plug-and-play connection to Prolon controllers, or a removable screw type terminal block with DATA+, DATA- and GND terminals.
Which baud rates does the PL-485-BT support?
9600, 19200, 38400, 57600 and 115200 bps, configurable, with 57600 bps as the default.
Is the USB port isolated?
Yes. USB is electrically isolated from RS485 to prevent potentially hazardous ground loops.
