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Null Modem Jumper Pinouts for MaxColor Series
Overview MaxColor Encoders and Decoders with 3.5mm ports have a null modem jumper on the bottom of the unit that flips the transmit and receive pins on the RS232 port. The nature of RS232 is that there is always a 50% chance that you have the correct cable. By flipping the jumper, to the alternate position, you …
22-May-2025
How to Use Serial over IP (Omega, Ultra, and MaxColor Series)
Overview Serial over IP allows a control system to send RS232 commands through a Just Add Power system to control sources, displays, and other endpoint devices connected to an Encoder or Decoder. Omega, Ultra, and MaxColor Series devices support three Serial Modes: * Passive: Extends a physical RS232 connection …
31-Jul-2026
Null Modem Jumper Pinouts for Omega/Ultra Series
Overview Ultra Encoders and Decoders have a null modem jumper on the bottom of the unit that flips the transmit and receive pins on the RS232 port. The nature of RS232 is that there is always a 50% chance that you have the correct cable. By flipping the jumper, to the alternate position, you ALWAYS have the cor…
22-May-2025
NXG RS232 Codes
All codes sent are in HEX format. (Sending the below commands as ASCII characters will not work, codes must be sent as HEX) Baud Rate: 38400 Bits: 8 Parity: None Stop Bits: 1 Command Code (HEX) Control System Representation Power On A0 F0 55 FF AE 51 \xA0\xF0\x55\xFF\xAE\x51 Power Off A0 F0 55 …
31-Jul-2023
Download - URC Total Control 2.0 Endpoint Driver for RS232 Control
Overview RS232 control in URC Accelerator is best implemented by allowing the Accelerate process to automatically build a user interface. To make this possible through a Just Add Power system, standard RS232 drivers must be converted into RS232 over IP drivers. This allows the URC processor to send RS232 comma…
01-Dec-2025
Serial Cable Pinouts
* Overview * TRS Pinouts Straight-Through Crossover * DB-9 Pinouts Straight-Through Crossover Overview Serial cables are standardized to have 3 pins for communication: * Send (TX) * Receive (RX) * Ground (GND) However, the position of those pins on each side of the cable may vary depending on the …
31-Jul-2023
Just Add Power RS232 Debug Cable
Overview Every Just Add Power 2G, Omega, Ultra, and MaxColor has a 3-pin molex port on it that acts as a debug port for device recovery . Debug Port Location On earlier 2G devices, the port is inside the case on the top part of the board On later Omega, Ultra, and MaxColor Series, the port is on the bottom of …
09-Jul-2026
What is a Null Modem?
* Overview * Straight-Through * Crossover * Just Add Power Null Modem Jumper Overview Simply put, a null modem is an adapter or change that is made to an RS232 connection that swaps the transmit (Tx) and receive (Rx) pins . Straight-Through With RS232 communication, each side of the connection has both a tr…
31-Jul-2023
Serial RS232 Troubleshooting
Overview Use this article when serial commands sent through a Just Add Power device do not control the connected source or display, or when expected serial feedback is not received. Serial communication depends on the entire path between the control system and the endpoint device. Troubleshoot the path in order: ne…
31-Jul-2026
Setup Endpoint Control (RS232, IR, CEC) for Encoders & Decoders
Overview Control4 systems can use Just Add Power Encoders and Decoders as an extension cord to manage sources and displays through CEC, IR, or RS232. Control is done on an individual device basis, so you can have a mixture of CEC, IR, and RS232 control in the same system depending on the needs of the endpoint. …
22-Sep-2025
