Setup: Jar System MC-6XXX USB-C Charging Cart User Guide

Overview

The MC-6XXX USB-C Charging Cart is an indoor charging and storage solution for schools, offices, training rooms, and shared-device environments. It organizes multiple USB-C devices in adjustable bays while automatically managing available charging power for efficient, balanced operation.

The cart is designed for powered-down laptops, tablets, and similar equipment. Devices without built-in USB-C charging ports may also be used with compatible USB-C emulator cables, which are optional and not included.

Specifications

• Model: MC-6XXX
• Product type: USB-C hybrid charging cart
• Maximum charging output: Up to 65 W per connected device, depending on device requirements and available system power
• Input power: Standard 15 A electrical outlet
• Device capacity configurations: 32, 24, or 20 devices
• Recommended device widths: Up to 1 inch for the 32-device layout, 1.25 inches for the 24-device layout, or 1.5 inches for the 20-device layout
• Charging connection: USB-C charging ports and cables
• Operating environment: Indoor use; not intended for altitudes above 2,000 m or 6,561 ft

Detailed Description

The MC-6XXX USB-C Charging Cart combines a storage cabinet, adjustable device bays, USB-C charging hardware, LED port indicators, and internal cable routing. Its intelligent charging system can temporarily disable selected USB-C ports when necessary to keep overall power consumption within safe operating limits.

Each charging port communicates its operating status through an LED. The cart may also produce a clicking sound as the system responds to changes in the power demand of connected devices.

The adjustable dividers support three storage layouts. Narrower devices can use the 32-device pattern, while wider equipment may require the 24-device or 20-device arrangement. The correct layout helps prevent pressure on device housings and charging cables.

Safety

• Turn devices off completely before connecting them to the charging cart.
• Use the cart only with compatible equipment and only for its intended charging purpose.
• Keep liquids, moisture, and harsh chemicals away from the cart and connected equipment.
• Electrical equipment should be operated by adults or under adult supervision.
• Do not block ventilation openings or attempt to open, dismantle, or modify the charging system.
• Do not sit or stand on the cart, shelves, or charging hubs.
• Connect the cart directly to a standard 15 A outlet. Do not use an extension cord or connect the cart in a daisy chain.
• Use the cart indoors and avoid extreme temperatures or operation above the specified altitude limit.
• Keep loose cables inside the front shelf lip when devices are removed so the cables cannot catch in the door.

Ignoring the operating and safety instructions may result in personal injury, equipment damage, or loss of warranty coverage. The owner or user is responsible for confirming that connected equipment is used safely and correctly.

Setup and Operation

Connecting the Cart

1. Plug the cart power cable into a standard 15 A outlet.
2. Move the power switch on the side of the cart to the ON position.
3. Confirm that the port LEDs illuminate white, indicating that the cart has power and the ports are ready.
4. Power down each device completely before connecting it.
5. Attach each device to a USB-C charging cable.
6. Place devices so their charging ports are as close as possible to the cart’s USB-C ports. This reduces cable strain and helps prevent long-term cable damage.

LED Status Guide

• White: The port is ready and available.
• Blue: The connected device is charging.
• Green: The device has reached more than 90 percent charge.

Devices can be connected or disconnected while the cart is operating. The charging system automatically distributes power and may temporarily turn some ports off to control total consumption. Charging can provide up to 65 W when the connected device and system conditions allow it.

When removing devices, disconnect units showing green LEDs before units showing blue LEDs if the goal is to remove the devices with the highest charge level first.

Adjusting the Device Bays

Choose the divider pattern according to device width:

• 32-device pattern: Best for devices up to 1 inch wide.
• 24-device pattern: Best for devices up to 1.25 inches wide.
• 20-device pattern: Best for devices up to 1.5 inches wide.

To remove a divider, push its front section inward and upward, then guide it out of the tray slot. To install one, place the taller side into the rear slot first. Push the divider inward and downward until the opposite side seats in the front slot.

Installing Charging Cables and Adapters

This procedure applies to hybrid cart configurations that use device AC adapters.

1. Remove the security screw from the center of the shelf with the supplied Torx key.
2. Place the screw temporarily in the side of the cart to hold the tray open while wiring.
3. Measure the cable length needed to reach from the inside of the tray to each device.
4. Choose an arrangement that suits the adapters. Wider adapters may fit better from front to back, while narrower adapters may work better from left to right.
5. For tablet-only installations without AC adapters, use the clips beneath the shelf to group cables in sets of five or six.
6. Arrange the adapters while leaving only enough cable outside the port to reach the devices.
7. Plug each charger into the internal power strip.
8. Bundle excess cable to keep the tray organized and reduce tangling.
9. Optionally reinstall the center security screw to discourage adapter removal or tampering.

Adapters can often remain bundled as supplied. If they are not bundled, twist ties or hook-and-loop straps can help organize them. Particularly large adapters, approximately 5 by 2 by 1.25 inches, fit more tightly and may be arranged toward the rear of the tray from left to right, with some positioned on their sides.

Troubleshooting

Start With a Reboot

Disconnect the power cord, wait briefly, and reconnect it. Turn the cart back on and check whether the LEDs illuminate and charging resumes.

One Device or Port Is Not Charging

1. Verify that both ends of the charging cable are firmly connected to the cart and the device.
2. Move the device from the suspected port to another working port.
3. If the device still does not charge, the device may be the source of the problem.
4. If it charges from the second port, move the second port’s cable to the original port.
5. If charging works with the replacement cable, replace the original cable.

An Entire Charging Hub or Shelf Is Not Working

1. Check that the cart’s power cable is connected correctly at the rear of the charging hub.
2. Remove the right rear panel to access the internal AC power connection more easily.
3. Reconnect the power cable securely.
4. Power the cart back on and confirm that the LEDs illuminate.

Removing or Replacing a USB-C Cable

1. Remove up to three shelf-lid security screws with the supplied Torx key.
2. Open the tray lid.
3. Disconnect the cable from the USB-C port.
4. Route the cable through the cable track and remove it.
5. Install the replacement by reversing these steps.
6. Secure the tray lid again with its screws before returning the cart to operation.

Warranty

The warranty covers defects in materials and workmanship for the original consumer. At the manufacturer’s discretion, the remedy may be a new or refurbished replacement, repair, replacement parts, or a refund of the purchase price.

Coverage excludes accidental damage, unreasonable use, neglect, tampering, and other problems not caused by defects in materials or workmanship. The warranty duration depends on the specific product and is not stated in the supplied guide.

Warranty remedies are limited to those described above. Limitations on incidental, indirect, special, or consequential damages may vary according to applicable law.

Pros & Cons

• Pros: Supports USB-C charging, offers up to 65 W per device when available, automatically balances power demand, provides clear LED status information, and accommodates three device-bay layouts.
• Pros: Cable routing, optional security screws, and adjustable dividers help maintain an organized shared-device environment.
• Cons: USB-C emulator cables for non-USB-C devices are optional rather than included.
• Cons: Large AC adapters occupy more tray space and may require careful positioning.
• Cons: The cart must be connected directly to a suitable 15 A outlet and is restricted to indoor operating conditions.