Church (psalm) displays
The NDT series LED displays are designed particularly for displaying psalm and hymn numbers during religious services. They can also be used in other applications, as versatile remote-controlled numerical displays.
Features:
- Wireless control of a display with a hand-held infrared (IR) control from up to 20 m;
- Wireless control of a display through a radio (RF)transceiver from up to 70 m;
- Direct input of a number (3 to 4 digits, according to the display format);
- Possibility to display some characters of the alphabet (A, b, C, d, E, F, H, P, U, -, space, decimal point);
- Simple increase/decrease of a number with cursor keys (up/down arrows);
- Alternating display of a hymn and verse numbers;
- Memory for 30 numbers (possibility to prepare the numbers of hymns in advance for the whole service);
- Simple displaying of numbers stored in the memory with cursor keys (up/down arrows);
- 2 adjustable brightness levels for a day/night mode, switched with a single button;
- Adjustable period of alternating display of a hymn and a verse number in seconds;
- Possibility of mutual interconnection of up to 32 devices (displays and an RF repeater) with a 2-wire cable through a serial interface RS485;
- Unlimited number of displays controlled by a radio RF signal.
The technical solution of the NDT series of displays and its accessories has been designed with consideration of their usage in simple applications with a single display, or in large-scale systems with several displays. The versatility of the solution allows creating a required final system by gradual extension, not just in terms of the number of connected displays, but also in terms of their control.
In the simplest setup, all that is required is a single display and a single IR remote control. Such a combination is suitable for small churches, where the maximum direct distance between the display and the operator does not exceed 15 m. In larger churches and cathedrals, where the distance from which the displays are controlled is longer, it is possible to use the advantage of wireless transmission by means of an RF repeater. The RF repeater is also controlled by an IR remote control, while it increases the range of the remote control by a radio signal transmission (see figures with setup schemes). This solution substantially simplifies and shortens the time of installation of displays, which eventually leads to decreased costs.
In case a 2-wire cable is already available for some reason, the RF repeater allows connecting up to 31 displays to such a cable. The length of this cable may be up to hundreds of meters. The displays may be interconnected also between each other, while one of them (set as a master) receives control commands (either from an IR remote control or from an RF repeater).
Good readability in different light conditions is secured by the ability to set the displays brightness.
The ELEN company lays strong emphasis on the design and workmanship of our products. This is the reason why the frames of these displays are made of round aluminium profiles with a special surface finish. The displays are normally supplied in matt platinum grey, or in dark gold colours. Other colours (glossy white, silver matt, or white, black matt, or other) are also available on special order.
Standard accessories:
- AC mains power cord 230 VAC
- Installation holder
Optional accessories: