General
Degree of protection	not specified
DALI voltage	15,5 V DC
Output current	75 mA
Power consumption	< 2,5 W
Number of controllable DALI devices (with 1 device)	37
Number of controllable DALI devices (with 3 parallel devices)	111
Max. DALI cable length	300 m
Cable cross-section	1,5-2,5 mm²
Parallel connection (passive)	5 Devices
Parallel connection (active)	3 Devices
LED orientation light	18 colours + OFF
Engaging brightness	Adjustable for power failure
Base brightness	Adjustable for power failure
Overload protection	Electronic fuse
Operation mode	Broadcast operation (central telegram)
Compatibility	Platform 63, Busch-Duro 2000® SI, Reflex SI, Busch-balance® SI, Busch-art linear®, future® linear, Busch-axcent®, solo®, pur edelstahl, carat®, Busch-dynasty®, alpha, impuls
Short-circuit-proof

The Busch Jaeger 2116/11 U is a DALI-Power potentiometer with integrated power supply, specifically designed for controlling lighting systems in broadcast operation (central telegram). It is used for brightness control and switching of up to 64 DALI-operated devices in accordance with the IEC 62386 standard, for example EVGs or transformers with DALI interface. The device features a rotary actuator and a push-to-off button, making it suitable for both continuous brightness control and secure switching off of lighting. Particularly noteworthy is the support for tunable white luminaires, which comply with the DALI standard IEC 62386-209 (Device Type 8). The colour temperature can be adjusted in the range of 2,700 K to 6,500 K, enabling flexible adaptation to different room atmospheres.

Applications
This potentiometer is intended for use in professional lighting systems, particularly in buildings with central lighting control. It is suitable for rooms requiring precise and individual lighting control, such as office buildings, conference rooms, hotels, or apartments with intelligent lighting management. Functions such as power failure-safe setting of switch-on brightness and base brightness ensure that the lighting remains in a defined state even after a power outage. The integrated LED orientation lighting with 18 adjustable colours plus an off position supports orientation in the dark and can be adapted to the respective room design.

Functions and equipment in detail
The device is short-circuit-proof and overload-protected by an electronic fuse. In active operation, it supplies the necessary power for additional DALI-operated and control devices at mains voltage, thus functioning as a power supply within the DALI network. In passive operation, i.e. without mains voltage, it continues to serve as a control station in the DALI bus. Parallel operation is limited: up to 5 devices can be operated in parallel in passive mode, up to 3 in active mode. The maximum DALI cable length is 300 metres with a cable cross-section of 1.5 to 2.5 mm². Installation is carried out in UP boxes according to DIN 49073.

Technology explained simply
The integrated DALI power supply ensures the device's power supply and enables the supply of additional DALI devices in the network. The DALI voltage is a maximum of 15.5 V DC, and the output current is limited to 75 mA. The power consumption is less than 2.5 W. The number of controllable DALI-operated devices depends on the number of active potentiometers: with one device, it is 37; with three parallel devices, it is 111. Control is performed via the DALI protocol, which enables bidirectional communication between control device and lighting. The tunable white function allows dynamic adjustment of colour temperature, enabling flexible lighting atmosphere design.

Compatibility and accessories
The device is intended for use with products from the Busch Jaeger platform 63 and the design lines Busch-Duro 2000® SI, Reflex SI, Busch-balance® SI, Busch-art linear®, future® linear, Busch-axcent®, solo®, pur edelstahl, carat®, Busch-dynasty®, alpha, and impuls. It is not suitable for combination with DALI sensors or central units from other manufacturers. Compatibility is limited to the specified Busch Jaeger product lines.

Installation and mounting
Mounting is carried out in UP boxes in accordance with DIN 49073. The device is designed for installation in standard installation switch boxes and requires no special tools or additional components. Installation takes place in the electrical distribution network, with the DALI cable being laid in accordance with the relevant standards. The maximum cable length of 300 metres with a cable cross-section of 1.5 to 2.5 mm² must be observed.

Advantages in operation
Thanks to the integrated power supply and power failure-safe setting of brightness values, the device offers high operational reliability. The ability to connect multiple devices in parallel enables flexible system expansion. Support for tunable white luminaires extends application possibilities in lighting systems aiming for variable lighting atmospheres. The integrated LED orientation lighting increases user-friendliness, especially in dark rooms. The electronic fuse protects the device and the entire DALI network from damage caused by short circuits or overloads.