xCella Wireless FAQ

Q: What is the “typical range” of the xCella communications module?
A: Estimating “typical range” for wireless communications equipment can be challenging as no two installations are exactly the same with regards to the installation environment. That being said, we recommend the xCella communications range for typical construction to be 80-100ft (25-30m). In a heavy construction environment where there maybe diamond mesh metal lath walls, thicker reinforced concrete structures, etc. we recommend 30-50ft (~10-15m) communications range.

Q: What are the highlights of the xCella Wireless protocol?
A: Acuity’s RDT Protocol features Point to Point communication, communicating in the lower range of the 900Mhz ISM band. The RDT protocol is designed to perform to the unique requirements related to the lighting controls market. Also, the xCella node has distributed intelligence for continued in-room operation without repeater or gateway which makes it not only ideal for smaller, cost sensitive installations, but also allows xCella to grow and expand for larger multi-room jobs where greater capabilities are required. xCella Wireless features additional features including a comprehensive suite of commissioning/diagnostic tools and the ability to perform over-the-air firmware updates.

Q: Are there other tools for commissioning?
A: Yes. The DTC (Digital Time Clock) may be used to allow for comprehensive programming devices, set schedules, and a wide variety of other functions.

Q: If I purchase a Packaged Room solution and a device needs to be added or replaced, do I have to replace everything?
A: No. All accessories are interchangeable modules and may be added to an existing system.

Q: Can I integrate the receiver and a Micropanel to produce a dimming panel?
A: Although any project can be handled with the remote module, there occasions when a panel based solution is a superior solution.
1. A single room with multiple loads (one panel to mount rather than multiple modules)
2. Quick programming through a hand held programmer (GR2400 DTC)
3. Emergency UL924 compliance (controlling emergency without the use of shunt relays)
When a remote panel is needed, the xCella receiver or gateway can be added to a Micropanel. The xCella receiver acts as an RF antenna allowing wireless switches and sensors to control loads within the panel. If remote modules need to be networked with the remote panel, the receiver needs to be upgraded to an xCella gateway. The Micropanels can work stand alone, or be networked into a complete building network.

Q: Can xCella be networked to a GR2400 system?
A: Yes, by adding the XCR Gateway to your GR2400 system, all xCella devices within the wireless range of the GATEWAY are integrated as a part of the GR2400 system.

Q: Can I pair a single device from an xCella remote module?
A: Yes, the remote module can be put into pairing mode through the black multifunction button (See product pairing guide for details).

Q: Can I unpair a single device from an xCella remote module?
A: Yes, when the remote module is in pairing mode, repeating the pair instructions removes the device from memory (see “Product Pairing Guide” for details).

Q: Can I clear all devices from the remote module memory?
A: Yes, when the node is in pairing mode, press and hold the multifunction button for at least two seconds and all paired devices will be removed.

Q: Can I manually turn my lights on?
A: Yes, the node has a manual override option. Put the remote module into manual override mode and then press and hold the multifunction button for more than one second. When released, the relay will toggle (see “Product Pairing Guide” for details).

Q: What is the maximum number of devices that can control a relay?
A: You can pair up to 16 devices to one remote module.

Q: What is the maximum number of relays I can control with a switch?
A: The limit is based on range rather than the number of relays. Any number of relays within range can respond to the RF switch.

Q: Can I adjust the responsiveness of the wireless photocell?
A: Yes, this can be changed using a computer based software program.

Q: Can I choose to change my Occupancy Sensor from vacancy mode to occupancy mode (and vice versa)?
A: Yes, this can be changed using a computer based software program.

Q: Can I adjust the time out delay on my wireless occupancy sensor?
A: Yes, this can be changed using a computer based software program.

Q: The Door/Window switch is working the opposite way I would expect. How do I change this?
A: If the window switch is paired to a relay with the sensor in the closed position (both parts of the window switch next to each other with arrows aligned), the paired relay will turn on when the contacts are apart and off when the contacts are together.  If the window switch is paired to a relay with the sensor in the open position, the paired relay will turn off when the contacts are apart and on when the contacts are together.

Q: Do I need someone on site to commission my system?
A: Individual rooms can be factory programmed for quick installation in the field, or field programmed through button presses on the module and other devices. This field programming can be done by following the quick pairing instructions, or by a factory trained technician. To network multiple rooms together or connect to a GR2400 system, a factory trained technician will be required.

Q: Can I integrate xCella into a Building Management System (BMS)?
A: Yes, this can be accomplished by networking the GR2400 system to provide the BMS gateway function.

Q: How can I create schedules for my xCella installation?
A: Yes, by networking the GR2400 system with an xCella installation, scheduling can be performed similar to any other LC&D panel by using the Digital Time Clock (DTC). Optionally, you may also use the Unity GX2 software application to perform scheduling functions.

Q: How can xCella provide Plug Load Control?
A: Both the xCella Remote Module and Plug Switch Module are plug load rated to control any general purpose load. Either can be controlled by a wall switch, occupancy sensor or time schedule; the main difference is how they are wired into the space. The Remote module is hard wired between the breaker and the receptacle while the plug switch module is easily plugged into any existing wall outlet and made to provide a simple and quick control solution.

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