Lutron 783 Application Note

Application Note #783
Revision A
February 2021
Patient Room Pillow Speaker Integration with Lutron Control Systems
Lutron systems help enhance the patient experience by providing patients control over their environment. In many cases, patients in hospitals or long-term care facilities interact with their environment via the pillow speaker. This app note describes the methods to integrate a pillow speaker into a Lutron lighting and shading control system.
System Components
There are multiple required components involved in a patient room control system:
• Pillow Speaker – provides the user interface for the patient
• Patient Station – connection point for the pillow speaker; provides signals to other devices (TV, lights, nurse call station, etc.); this is made by a different manufacturer than the pillow speaker and is part of the overall nurse call system
• Lighting System Interface – connects the patient station to the lighting control system
The diagram below shows a typical setup:
Pillow Speaker
To Nurse Call Station
Patient Station
x
Contact Closure outputs
Lutron Contact Closure
Interface
QS Link to Load Controllers
While this basic diagram is true for most scenarios, there can be wide variation in the specifics. For example: different types of pillow speakers with differing button combinations may be used; different types of patient stations may be used which provide different types of integration; different lighting control interfaces may be necessary for the proper integration. This app note will provide details on some of the most common applications for contact-closure based pillow speaker integration using Curbell MedicalT products as an example.
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Application Note #783
System Components (continued)
In most cases, the patient station provides a contact closure, corresponding to various light or shade control buttons, to the lighting system interface. These buttons are usually momentary, meaning they close when the button on the pillow speaker is pressed, and open when it is released. A patient station will have one contact closure output for each light or shade control button. Check documentation from the patient station manufacturer for specifics, including mapping of buttons on the pillow speaker to specific contact closures.
In some cases, pillow speaker and patient station systems may provide a more sophisticated digital method of control, such as using Ethernet or BACnet commands. In these cases, coordination between the pillow speaker manufacturer, patient station manufacturer, and Lutron is required. These solutions are outside the scope of this app note.
Sequences of Operation
Depending on the client’s needs, there are a variety of configurations of pillow speakers a client may choose. The choice of pillow speaker will determine the sequence of operation (SOO) that the system can support. The choice of Lutron system will also determine what SOOs are supported; see the System Support section of this document for details.
The following are some common types of pillow speakers, along with typical supported SOOs, using a variety of Curbell MedicalT designs. The number of buttons and configurations of pillow speakers from other manufacturers will vary:
One Button: Lights Only
This scenario provides a single contact-closure output from the pillow speaker to the lighting control system. While usually used for one zone of control, as shown in the image, it may allow for control of multiple zones if scenes are used. Typical supported SOOs include:
• Toggle lights (switch between 100% and off, for one or more zones)
• Toggle scenes (switch between a scene and off, for multi-zone spaces)
• Cycle dim (press and hold the button to toggle between dimming up to full and down to off)
• Scene sequence (step between high/medium/low light levels or scenes)
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Application Note #783
Sequences of Operation (continued)
Two Buttons: Lights Only or Lights and Shades
This scenario provides two contact-closure outputs from the pillow speaker to the lighting control system. This is typically used for two zones of lighting control, as shown in the image; however, based on the desired functionality, additional SOOs could be supported using Button 1 / Button 2:
• Toggle zone 1 / toggle zone 2, shown on left
• Lights raise / lower (allowing patient to raise the lights from off, or lower them to off)
• Toggle scene
• Toggle lights / toggle shades (for rooms that have shades, using an open/stop/close/stop “garage door style” function)
Note: Icons on image are illustrative only, if using other functions (e.g., shades) different icons
may be used.
Four Buttons: Lights and Shades
In this scenario, there are two buttons for lights, and two buttons for shades. This provides four contact closures from the pillow speaker to the lighting control system. This is commonly used for two zones of light control, plus raise and lower of shades, as shown. However, other SOOs could be supported:
• Toggle zone 1 / toggle zone 2 / shade raise / shade lower, shown on left
• Lights raise / lights lower / shade raise / shade lower
• Select scene / turn off / shade raise / shade lower
• Toggle zone 1 / toggle zone 2 / toggle shade 1 / toggle shade 2
• Lights raise / lights lower / toggle shade 1 / toggle shade 2
• Select scene / turn off / toggle shade 1 / toggle shade 2
Note: Icons on image are illustrative only, if using other functions (e.g., shades) different icons
may be used.
3 Customer Assistance — 1.844.LUTRON1
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