The LED indicator is the smallest but most-read screen in the queue system. Set up well, a customer knows where to go at a glance; set up badly, everyone keeps watching the counter instead of the screen. This article explains what an LED indicator can do and what those capabilities mean on site.
1. Three colours: three meanings on one screen
The indicator can display three colours. That lets the ticket number, the counter and alerts be read without mixing: a normal call in one colour, a priority or appointment customer in another, and a counter change or closing notice in a third.
Colour should never carry meaning on its own: the text must always say what is happening, and colour only speeds up recognition.
2. Wi-Fi or RS-485: the connection is ready
Indicators can run both wirelessly and over cable. Wi-Fi is practical in halls that already have network coverage and where pulling cable is difficult. RS-485 is an industrial line that stays stable over long distances and lets several indicators be chained on a single bus.
Both connections come ready, so the choice is made on site conditions; the software side does not change either way.
3. Typography: TTF fonts and nine font banks
TTF fonts can be uploaded to the indicator. That means the corporate typeface can be used directly; choosing a font that covers Turkish characters (Ç, Ğ, İ, Ö, Ş, Ü) correctly matters.
Up to nine font banks can be defined. Different information on the same indicator can therefore be separated by typeface: a bold, large font for the ticket number, a lighter one for the counter name and a third bank for the announcement line.
4. Effects: static and scrolling text
The indicator offers two basic effects: static text and left/right scrolling text. Short information (ticket number, counter) reads faster when static; long announcements fit through scrolling text.
An effect is not only movement: font and colour can change within the same text, so in one scrolling line the ticket number can be large and coloured while its description stays plain.
5. Duration and repeat: sent as a template
How long an effect lasts and how many times it repeats is defined in the application. These settings are not entered device by device; they are prepared as a template and sent out. The same template produces exactly the same result on several indicators and across several branches.
- A short, repeated template played at call time (e.g. “Ticket 42 — Counter 3”)
- An information template cycling through the day (e.g. “Lunch break 12:00–13:00”)
- A template using a different colour and effect for priority customers
The real benefit of the template approach is consistency: it is defined once, applied identically to every indicator, and updated from a single point when something changes.
6. Why LED? High brightness indoors
LED indicators stand out indoors thanks to their high brightness; they remain readable from a distance even in large, daylit halls. What sets them apart from panel screens is that they are designed as an always-on information display: low heat, low power and a long service life.
They also give a sleek, modern look in both small and large installations: the same design language works in a small waiting area with a single counter and in a large hall with dozens of counters.
Three small notes for installation
- Set brightness for the room. High brightness in a bright, glazed hall and a lower level in a dim waiting area both reduce eye strain.
- Keep scrolling speed readable. A line that moves too fast becomes unreadable on long texts.
- Name your templates. Labels such as “Call”, “Announcement” or “Priority” make life easier for whoever edits them later.
A good LED indicator goes unnoticed; it simply delivers the right information at the right moment. That takes well-designed colour, font and effect templates rather than expensive hardware.