RJ12 Splitter

Branch the PX1 Lighting Controller Signal to Individual Ballasts

The Autopilot PX1 lighting controller communicates with ballasts through a wired daisy-chain network. The RJ12 trunk line runs from the PX1 controller to the first splitter, and from splitter to splitter down the chain. Each splitter then provides the connection point where an individual ballast's USB cable connects to the network.

Without the RJ12 Splitter, the PX1 trunk-line signal cannot be distributed to individual ballasts. The splitter is the junction component that bridges the RJ12 trunk line to each ballast's USB port, using an RJ12-to-USB cable (APRJUSB15) to complete the connection.

Key Features & Benefits

• Connects RJ12 trunk line to ballast USB cables — provides the junction between the RJ12 trunk-line network and the USB port on each individual Phantom ballast.
• RJ12 to RJ12 connectors — daisy-chain splitters using RJ12-to-RJ12 cables to extend the network across as many ballast positions as required.
• PX1 lighting controller compatible — designed specifically for the Autopilot PX1 Advanced Lighting Controller network topology.
• Expands the lighting control network — add one splitter per ballast position to scale the PX1 network to any number of fixtures supported by the PX1.

Who Should Use the Autopilot RJ12 Splitter

Growers using the Autopilot PX1 Advanced Lighting Controller who need to connect one or more Phantom ballasts to the PX1 trunk-line network — one splitter is required per ballast position in the system.

Wiring the PX1 Network With Splitters

Connect the RJ12 trunk-line cable from the PX1 controller to the first splitter's RJ12 input. Connect the splitter's RJ12 output to the next splitter using another trunk-line cable. At each splitter, use an RJ12-to-USB cable (APRJUSB15) to connect to the ballast's USB port. Continue daisy-chaining until all ballasts are connected.

Frequently Asked Questions

How many splitters do I need for my PX1 system?

One splitter per ballast position. Each splitter provides one connection to a ballast's USB port, while also passing the trunk-line signal forward to the next splitter in the chain.

What cable connects the splitter to a ballast?

The Autopilot RJ12-to-USB cable (APRJUSB15) connects each splitter output to the USB port on a Phantom DE ballast — not a standard USB cable.

Does the splitter work with both 15-foot and 50-foot trunk-line cables?

Yes — the splitter accepts any Autopilot RJ12-to-RJ12 cable regardless of length. Use whatever trunk-line cable length fits the distance between connection points in your grow room.

Is this splitter compatible with ballast brands other than Phantom?

The splitter is designed for the Autopilot PX1 system, which is confirmed compatible with Phantom DE ballasts and Core HID ballasts. Compatibility with other brands depends on whether their USB port uses the same PX1 protocol.