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MASTERCELL NGX inSIGHT main menu with the cursor on the System Inv option.Copyright 2026 Infinitybox, LLC. All Rights Reserved.

MASTERCELL NGX System Inventory

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The System Inventory screen on your MASTERCELL NGX gives you a list of every device connected on your Infinitybox network. It is a simple but powerful tool that confirms your POWERCELLs, inMOTION Cells and other peripherals are connected, communicating and addressed correctly. This blog post is part of our series on the diagnostic functions built into the inSIGHT screen. We introduced this screen in our overview of the MASTERCELL NGX main menu. In this post, we take a deeper look at how to read and use the System Inventory screen.

Please note that this blog post covers the MASTERCELL NGX in our Next Generation IPM1 Kit. These inSIGHT diagnostic tools are specific to our Next Generation hardware. If you have our Legacy 3-Cell Kit or 20-Circuit Kit, search through our blog archives for the diagnostic tools that came with those systems.

How to Read the System Inventory Screen

To get to the System Inventory screen, press the HOME button on your MASTERCELL NGX to bring up the main menu, use the SCROLL UP and SCROLL DOWN buttons to move the cursor to System Inv and press SELECT.

MASTERCELL NGX inSIGHT main menu with the cursor on the System Inv option.

Selecting System Inv from the MASTERCELL NGX main menu.

When the screen opens, you will see a list of every device that the MASTERCELL NGX finds on your network. The header at the top of the screen reads SYSTEM INV followed by a number in parentheses. That number tells you how many devices are on the network. It will change with the number of devices that are connected. In the example below, the header reads SYSTEM INV (3), so there are three devices on the network.

System Inventory screen on the MASTERCELL NGX inSIGHT display showing three connected devices with their PGN and name.

The System Inventory screen showing three devices on the network: a front POWERCELL, a rear POWERCELL, and a Driver Front inMOTION NGX.

Each device shows up on its own row with two pieces of information. On the left is the PGN for that device. This is an internal identifier that the MASTERCELL NGX uses to validate the device on the network. You do not need to decode it. On the right is the human-readable name that tells you what the device is. This is the part you will use to confirm what is connected.

You can use the SCROLL UP and SCROLL DOWN buttons to move the cursor through the list of devices. In a later blog post, we will show you how to use the SELECT button to drill down into a specific device and see much more detail about it, like the state of its outputs and its voltage. For this post, we are focused on the inventory list itself.

What the Devices Look Like on the Network

Each type of device in the Infinitybox system shows up in inventory with its own name so you can identify it at a glance. Here is what the different devices look like on the network.

  • POWERCELLs:
    • Address 1 shows as the front POWERCELL (FRONT PC)
    • Address 2 shows as the rear POWERCELL (REAR PC)
    • Additional POWERCELLs begin at FF07 and are labeled by number, such as POWERCELL 3
  • inMOTION Cells (FF03 through FF06):
    • Driver Front- DF inM NGX
    • Passenger Front- PF inM NGX
    • Driver Rear- DR inM NGX
    • Passenger Rear- PR inM NGX
  • inVIEW: inVIEW
  • inCONTROL: inCONTROL

Confirm Your Devices Are Connected and Communicating

The first thing the System Inventory screen tells you is whether every device you installed is actually on the network. When a device is powered correctly and its CAN cables are connected correctly, it announces itself to the MASTERCELL NGX and shows up in inventory.

Start with the device count in the header. Compare the number in parentheses to the number of devices you installed in your car. If you installed three POWERCELLs but the header only shows two, then one of them is not communicating. The same is true for any device in your system.

When a device is missing from inventory, it usually points to one of two things. Either the device is not being powered correctly, or there is a problem with the CAN cable that connects it to the rest of the network. The System Inventory screen lets you confirm quickly that every device is present before you spend time chasing a problem somewhere else.

Confirm Your Devices Are Addressed Correctly

The second thing the System Inventory screen tells you is whether each device is addressed as the device you intended. This is a more subtle problem, and it is one that can be very hard to find any other way.

Every POWERCELL is set to a specific address with its address jumpers. The MASTERCELL NGX sends commands to each POWERCELL based on that address. If a POWERCELL is addressed incorrectly, the commands meant for it never reach it, even though everything is powered and communicating perfectly.

Here is a common example. A customer is having trouble getting the outputs on a POWERCELL to work. Everything is wired correctly and the cell is communicating, but the functions still do not work. After some troubleshooting, we find that the address jumpers were set to the wrong cell. Instead of being set to cell 1, the POWERCELL was set to cell 8. The System Inventory screen makes this easy to spot. The customer can look at inventory and see that a device is on the network, but it is not showing up as the cell they intended it to be. That tells them the address is wrong.

This is what makes the System Inventory screen so powerful. It takes an invisible problem, a device that is powered and communicating but addressed incorrectly, and makes it visible. We will cover how to set and change device addresses in more detail in a later blog post.

Summary

The System Inventory screen on the MASTERCELL NGX inSIGHT display gives you a quick, at-a-glance list of every device on your Infinitybox network. Use it to confirm that every device you installed is powered and communicating, and to confirm that each device is addressed as the cell you intended. Paired with the other diagnostic tools on the inSIGHT screen, it is one of the fastest ways to understand what is happening on your network.

Keep watching our blog for more details on the menus and diagnostic functions on the inSIGHT screen. If you have any questions, give us a call at (847) 232-1991 or contact us here.

MASTERCELL NGX Switch States screen showing one ground input turned on, with a single digit reading 1.Copyright 2026 Infinitybox, LLC. All Rights Reserved.

MASTERCELL NGX Switch States

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The Switch States screen on your MASTERCELL NGX is one of the most powerful diagnostic tools in your Infinitybox IPM1 Kit. It gives you a real-time view of every switch input on your MASTERCELL NGX, so you can confirm that your switches are wired correctly and quickly track down problems. This blog post is part of our series on the diagnostic functions built into the inSIGHT screen. We introduced this screen in our overview of the MASTERCELL NGX main menu. In this post, we take a deeper look at how to read and use the Switch States screen.

Please note that this blog post covers the MASTERCELL NGX in our Next Generation IPM1 Kit. These inSIGHT diagnostic tools are specific to our Next Generation hardware. If you have our Legacy 3-Cell Kit or 20-Circuit Kit, search through our blog archives for the diagnostic tools that came with those systems.

How to Read the Switch States Screen

To get to the Switch States screen, press the HOME button on your MASTERCELL NGX to bring up the main menu, use the SCROLL UP and SCROLL DOWN buttons to move the cursor to Switch States and press SELECT. When the screen opens, you will see a series of digits arranged across four rows.

Each digit represents one switch input on your MASTERCELL NGX. The rule is simple. A 0 means that input is off. A 1 means that input is on.

Labeled MASTERCELL NGX Switch States diagram identifying ground inputs 1 through 38 and 12-volt inputs 1 through 6 on the inSIGHT display.

MASTERCELL NGX Switch States, with callouts identifying each row of inputs and the 0 = OFF, 1 = ON legend.

The MASTERCELL NGX has 38 ground-switched inputs and 6 high-side switched inputs. The digits are laid out so that you can find any input quickly:

  • The top row shows ground-switched inputs 1 through 16.
  • The next row shows ground-switched inputs 17 through 32.
  • The bottom row shows ground-switched inputs 33 through 38 on the left.
  • After a gap, the right side of the bottom row shows the 6 high-side switched inputs, 1 through 6.

A quick note on terminology. We label the high-side switched inputs as 12-volt inputs on the screen and on your configuration sheet. Our customers use the terms “high-side switched input” and “12-volt input” interchangeably. They mean the same thing: an input that turns on when it sees 12 volts, rather than a ground. We will use 12-volt inputs through the rest of this post to match what you see on your screen.

When you are in the Switch States mode, the backlight on the inSIGHT screen will remain on.  When you are done monitoring the Switch States, you can press and release the HOME button to get back to normal operation.

Ground-Switched and 12-Volt Inputs

The MASTERCELL NGX reads two kinds of switch inputs, and the Switch States screen shows you both.

A ground-switched input turns on when it is connected to ground. This is how most of the switches in your car work with our Infinitybox system. When you flip a headlight switch, you connect the MASTERCELL NGX input to ground and the input turns on.

A 12-volt input turns on when it sees 12 volts. These are useful for connecting to devices that put out a 12-volt signal, like the fuel pump or cooling fan trigger from an EFI system. With our legacy MASTERCELL, you needed an external inVERT Mini to flip a 12-volt signal into a ground before the MASTERCELL could read it. The MASTERCELL NGX reads these 12-volt signals directly, so the inVERT Mini is no longer needed for these inputs. The Switch States screen shows you the state of both your ground-switched and 12-volt inputs in one place.

Watching the Screen in Real Time

The real power of the Switch States screen is that it updates live. As a switch turns on or off, you will see its digit change on the screen. There can be a lag of up to one second between flipping a switch and seeing the digit change, so give it a moment.

When all of your switches are off, every digit on the screen reads 0.

MASTERCELL NGX Switch States screen showing all inputs off, with every digit reading 0.

The Switch States screen with all inputs off. Every digit reads 0.

Now turn on one switch. In this example, we turned on the switch wired to ground-switched input 5. Watch the fifth digit in the top row. It changes from a 0 to a 1, while every other digit stays at 0.

MASTERCELL NGX Switch States screen showing one ground input turned on, with a single digit reading 1.

The Switch States screen with one input on. The digit for that input changes from 0 to 1.

To know which function each numbered input controls, refer to your configuration sheet. The configuration sheet is the single source of truth for which switch connects to which input on your MASTERCELL NGX. For example, on the standard front-engine configuration, input 5 is your headlights and input 6 is your parking lights. You can see an example of the standard front-engine configuration sheet by clicking this link. Always check the configuration sheet that came with your kit, since your assignments may be different if you have a custom configuration.

Wire and Test Your Switches Before Connecting Your Loads

One of the most useful things about the Switch States screen is that it lets you wire and test every switch in your car without connecting anything to a POWERCELL.

Because the MASTERCELL NGX reads your inputs directly, you can work through your entire car one switch at a time. Wire a switch, flip it, and watch the screen confirm that the MASTERCELL NGX sees it turn on and off. You can verify your entire switch harness is correct before you ever power up a load. This lets you break your wiring project into smaller, more manageable steps and confirm each one as you go.

Track Down Problems with Switch States

The Switch States screen is also a powerful diagnostic tool when something in your car is not working the way you expect.

A question we hear often is, “Why are my parking lights on?” The Switch States screen answers this quickly. Open the screen and look at the digit for your parking light input. If that digit reads 1 when the parking light switch is off, then the MASTERCELL NGX is seeing that input turn on for some reason.

In most cases, this points to one of two things. Either the switch is wired incorrectly, or the input wire is shorted to ground somewhere in your car. Because a ground-switched input turns on when it sees ground, a wire that is accidentally pinched, chafed or shorted to ground will turn that input on just as if you had flipped the switch. The Switch States screen lets you see exactly what the MASTERCELL NGX sees, so you can focus your troubleshooting on the input that is misbehaving instead of guessing.

Summary

The Switch States screen on the MASTERCELL NGX inSIGHT display gives you a real-time, at-a-glance view of every ground-switched and 12-volt input on your system. Use it to wire and test your switches without a POWERCELL, to confirm your harness is correct as you build, and to track down shorts and wiring mistakes when something is not working. Paired with your configuration sheet, it is one of the fastest ways to understand and troubleshoot your Infinitybox system.

You can download a PDF copy of the MASTERCELL NGX Switch States diagram by clicking this link.

Keep watching our blog for more details on the menus and diagnostic functions on the inSIGHT screen. If you have any questions, give us a call at (847) 232-1991 or contact us here.

MASTERCELL NGX inSIGHT main menu showing the Switch States, System Inv, and System Info options.Copyright 2026 Infinitybox, LLC. All Rights Reserved.

MASTERCELL NGX Main Menu

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The inSIGHT LCD screen on your MASTERCELL NGX is your window into your Infinitybox system. From the main menu, you can set up key features and access a powerful set of diagnostic tools with a few simple button presses. We covered the main status screen that you see when your system powers up in a separate blog post. You can learn about the main screen and how to read your CAN, ignition and security status by clicking this link. In this post, we want to walk through the six options on the MASTERCELL NGX main menu and explain what each one does. We will follow up with separate blog posts that take a deeper dive into each option.

Please note that this blog post covers the MASTERCELL NGX in our Next Generation IPM1 Kit. These inSIGHT diagnostic tools are specific to our Next Generation hardware. If you have our Legacy 3-Cell Kit or 20-Circuit Kit, search through our blog archives for the inSIGHT diagnostic tools that came with those systems.

The MASTERCELL NGX Main Menu

To get to the main menu, press and release the HOME button on your MASTERCELL NGX. The main menu has six options. You use the SCROLL UP and SCROLL DOWN buttons to move the cursor through the list and the SELECT button to open the option that the cursor is pointing to. Because the menu is longer than the screen, you will scroll through two views to see all six options.

MASTERCELL NGX inSIGHT main menu showing the Switch States, System Inv, and System Info options.

The top of the MASTERCELL NGX main menu, with options for Switch States, System Inv, and System Info.

MASTERCELL NGX inSIGHT main menu scrolled to show the inRESERVE, inMOTION, and DEBUG options.

The MASTERCELL NGX main menu scrolled down to the inRESERVE, inMOTION, and DEBUG options.

The six options are Switch States, System Inv, System Info, inRESERVE, inMOTION and DEBUG. Let’s walk through each one.

Switch States

The Switch States option gives you a real-time view of every switch input on your MASTERCELL NGX. The MASTERCELL NGX has 38 ground-switched inputs and 6 high-side switched inputs. When you open Switch States, you see a screen of digits arranged across four rows. The ground-switched inputs run across the rows, and the six high-side input states appear on the right side of the bottom row. A 0 means the input is off and a 1 means the input is on. The screen updates in real time, so if a switch turns on or off while you are watching, you will see it change, with a lag of up to one second.

This is a powerful way to confirm that your switches are wired correctly. You can work through your car one switch at a time and watch the screen confirm that the MASTERCELL NGX sees each input.  Click on this link to take the deeper dive into the Switch States feature on the MASTERCELL NGX.

System Inventory

The System Inv option is your system inventory screen. It gives you a list of every peripheral connected to your MASTERCELL NGX. This can include POWERCELLs, inMOTION Cells, inVIEW Cells and inCONTROL knobs. Each device shows up with its CAN address and a name so you can confirm that the MASTERCELL NGX sees everything in your network.

You can use the SCROLL UP and SCROLL DOWN buttons to highlight a device in the inventory and the SELECT button to dig deeper into it. From there, you can see details like the state of its outputs, its voltage and more. Click here for more details on the System Inventory function.

System Info

The System Info option lets you see the software revision of the code loaded onto your system. It also shows you the configuration that is loaded. The IPM1 Kit has options for a front-engine configuration and a rear-engine configuration, along with the option for a Custom configuration. If your system shows a Custom configuration and you have questions about it, contact our technical support team for more information. You can learn more about how to read the software revision and the loaded configuration by clicking this link.  

inRESERVE

The inRESERVE option lets you set up our inRESERVE Active Battery Management accessory. inRESERVE connects a POWERCELL output to a special latching solenoid and monitors your battery voltage. When the ignition is off and the voltage drops below a set threshold for a period of time, the POWERCELL pulses the solenoid and disconnects power to the system. This proactively eliminates drain from your battery.

Every IPM1 Kit ships without inRESERVE set up. If you purchase the inRESERVE option, this menu lets you enable the feature, pick the POWERCELL and output that control the solenoid, and choose the timing and voltage threshold. We have an existing blog post that walks through this whole process. You can learn how to enable inRESERVE on your MASTERCELL NGX by clicking this link.

inMOTION

The inMOTION option walks you through the process of setting up your inMOTION NGX door modules. inMOTION NGX installs in the door, and each module must be set with its proper address so it knows which commands to obey. The default locations are Driver Front, Passenger Front, Driver Rear and Passenger Rear. You order as many inMOTION NGX modules as you need for your build, two for a 2-door car or four for a 4-door car. We ship them set up generically, so you run this process once to tell each module where it is installed in the car. You can learn how to configure your inMOTION NGX door modules by clicking this link.

DEBUG

The DEBUG option puts the MASTERCELL NGX into what we call Messaging Mode. Where Switch States shows you whether an input is on or off, Messaging Mode goes a step deeper. It displays in real time when the MASTERCELL NGX sees an input turn on or off, and then shows you what the MASTERCELL NGX does in response.

This is a powerful tool for confirming that your switches are wired correctly and that your MASTERCELL NGX is programmed the way you expect. For example, if your headlights are not working, you can put the MASTERCELL NGX into Messaging Mode and turn the headlight switch on. The inSIGHT screen will display the input it saw turn on and confirm which POWERCELL and which output it is commanding to turn on. We will take a closer look at Messaging Mode in its own blog post.

Summary

The main menu on the MASTERCELL NGX inSIGHT display is your gateway to the setup and diagnostic functions built into your Next Generation Infinitybox system. From these six options, you can check your switches, review your system inventory, see your software and configuration, set up inRESERVE, configure your inMOTION NGX modules and dig into advanced diagnostics with Messaging Mode. Keep watching our blog as we publish a detailed deep dive into each one.

Give us a call at (847) 232-1991 or contact us here if you have any questions.

Main status screen on the MASTERCELL NGX inSIGHT display showing CAN bus status and ignition stateCopyright 2026 Infinitybox, LLC. All Rights Reserved.

MASTERCELL NGX Main Screen

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The inSIGHT LCD screen on your MASTERCELL NGX is your window into your Infinitybox system.  With a few simple button presses, the screen lets you set up your IPM1 kit plus gives you powerful diagnostic tools.  We’ve talked about the features under the cover of your MASTERCELL NGX in a separate blog post.  You can learn about the inSIGHT screen, the menu buttons and other features by clicking this link.  In this post, we want to talk about the main screen on your MASTERCELL inSIGHT screen.  Please note that this blog post discusses the MASTERCELL NGX in our Next Generation IPM1 kit.  If you have our Legacy 3-Cell Kit or 20-Circuit Kit, search through our blog posts for details.

MASTERCELL NGX HOME Screen

After your IPM1 kit powers up, you will see this screen on your MASTERCELL.

Main status screen on the MASTERCELL NGX inSIGHT display showing CAN bus status and ignition state

The main status screen on the MASTERCELL NGX inSIGHT display.

The backlight on the screen will remain on for 5 to 10 seconds then will turn off to reduce power drawn from the battery.  To return to this screen at any time, you can press and release the HOME button.

This screen gives you several important pieces of information about your Infinitybox system.  First, it tells you the status of the CAN network.  Second, it tells you the state of ignition.  Lastly, it tells you the state of security.

CAN Status

Your Infinitybox system is connected together using a J1939 CAN network.  This is a simple 2-wire system that connects your MASTERCELL to your POWERCELLs, to your inMOTION NGX cells, to your inVIEW and to any other devices connected in your car.  At a high-level, the main screen shows you the status of the CAN network.  It shows the status of the transmit circuit (TX) and the receive circuit (RX).  You will see OK for both TX and RX when the system is communicating correctly.  If you see ERR for either TX or RX, you should check your CAN cables to make sure they are connected correctly.  You should also make sure that you have the terminator resistor that came with your IPM1 kit correctly plugged into your system.  Check your IPM1 manual for more details on the termination resistor.  If you are seeing ERR for either TX and RX, contact our technical support team by clicking this link.

Ignition State

The next important thing that the main screen displays is the state of ignition.  When the ignition is on, you will see IGN: ON.  When the ignition is off, you will see IGN: OFF.  This monitors the ignition from either the switched ignition input, the one-button start input or ignition control from inTOUCH.  Specific functions in the system can be controlled with ignition.  The most common example is turn signals.  Out of the box, the system is set so that your turn signal inputs will only work when the ignition is on.  Using our inCODE NGX tool you can set other functions to be dependent on the state of ignition.  Check out the inCODE NGX details to learn more.

Security State

The last important piece of information on the main screen is the state of security.  You will see SEC: OFF when security is disabled and SEC: ON when security is enabled.  Security can be enabled and disabled from the inLINK Key Fobs and from the inTOUCH feature on inLINK.  Out of the box, the system blocks the ignition, starter and fuel pump when security is enabled.  This is a very powerful immobilizer for your car that is built into your IPM1 kit with inLINK NGX.  Using the inCODE NGX software tool, you can set other functions in the Infinitybox system to be disabled when security is enabled.  The main screen gives you a quick and simple way to check whether security is on or off.

Summary

The main screen on the inSIGHT LCD display on the MASTERCELL NGX gives you a quick snapshot of the health of the network, the state of ignition and the state of security.  Keep watching our blog for more details of the menus and functions on inSIGHT in our Next Generation System.

Give us a call at (847) 232-1991 or contact us here if you have any questions.