Digital Display
T-SL-300-100-6DN
Keep every control room, substation and operations floor reading the exact same second. The Sertel NTP Time Display 100mm is a GPS-disciplined slave clock that draws its time reference from your Master Clock over standard network cabling, so one accurate source of time reaches hundreds of display points without a dedicated wiring network of its own. It is built for facilities where a few seconds of mismatch between systems is not a minor inconvenience but an operational or compliance problem.
Key Advantages
A practical product foundation for critical infrastructure projects that need dependable hardware and engineering support.
Single Bus, Many Displays
All slave units share one common communication bus, so adding a new display to the network means running a single cable drop rather than pulling a new cable back to a central panel. For facilities that expand their monitoring footprint over time, this keeps retrofit cost and disruption down.
Built to Cover a Full Site
One Master Clock can drive up to 300 slave displays spread across a 1 km radius, enough to cover a mid size substation, manufacturing plant or rail yard from a single time source. Larger or spread out sites can cascade multiple master clocks to extend coverage further without losing a common reference.
Second-Accurate Time, Not a Drifting Clock
Each unit refreshes its HH:MM:SS output every second, pulled directly from the NTP feed rather than a free running internal oscillator. Operators see a display that tracks the master reference continuously rather than one that drifts between sync intervals. An HH:MM format is available where a seconds readout is not required.
100 mm Red LED Digits
Seven segment red LED digits at 100 mm height are sized to be read from several metres away, not from a desk. That makes them suited to control rooms, switchyards, platforms and shop floors where staff check the time on the move rather than up close.
Non-Glare, Wide-Angle Viewing
A red transparent filter overlay widens the viewing angle and cuts glare, so the display stays legible under overhead fluorescent lighting, direct sunlight through a skylight, or the dimmer lighting of a night shift.
IP55 Protection as Standard, Not an Add-On
Every unit ships with IP55 ingress protection built in, so it tolerates dust and splashing water on a factory floor without needing a separate protective enclosure. Where a display sits outdoors full time, an IP66 variant is available for stronger protection against rain and washdown.
One Failure Does Not Take Down the Network
Because each slave display runs independently off the shared time bus, a fault in one unit, such as a failed driver or a damaged cable run, stays local to that unit. The rest of the network keeps showing accurate time, which matters when a display network spans a few hundred points and a technician cannot reach every one of them immediately.
Applications
Explore the industries where this product is deployed and the operating problems it helps solve.
The table below lists the physical and electrical specifications for the T-SL-300-100-6DN variant of the NTP Time Display 100mm. Features marked as configurable are available on request and may affect lead time and price.
| Parameter | Specification |
|---|---|
| Model | T-SL-300-100-6DN |
| Character Size | 100 mm (customisable) |
| Display Colour & Type | Red, 7-segment LED |
| Time Pattern / Format | HH:MM:SS, 12-hour or 24-hour (HH:MM on request) |
| Signal Update | Every second |
| Dimensions | 700 mm (W) x 135 mm (H) x 35 mm (D) |
| Material | Diecast PVC / Aluminium |
| Mounting | Wall / Panel / Table top |
| Power Input | Universal 90 to 260V AC/DC |
| Signal Source | NTP (Network Time Protocol) |
| Cable Type | CAT6 or Fibre Optic |
| Manual Setting | Provision as per requirement |
| Ambient Temperature | -10 degrees C to +85 degrees C |
| Humidity | 0 to 90% RH, non-condensing |
| Protection Class | IP55 standard; IP66 for outdoor application |
FAQ
Talk to our engineering team about configuring the NTP Time Display 100mm for your site, from cable type to digit format, and get a datasheet and quote.
