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- 2000-01-01
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Mengdí Electronics MD890 Series GPS Digital Clock User Manual
The MD890 series GPS digital clocks from Mengdí Electronics provide high‑accuracy time using GPS as the primary source. Models are available in 1U, 2U, 5‑inch and 8‑inch displays, with master clocks containing a GPS receiver and slave clocks receiving time via RS485.
The manual details front and rear panel functions, antenna installation, brightness adjustment, time and timezone configuration, 1PPS output, serial communication parameters, and how to use the supplied GPS_TIME.EXE program to synchronize a computer with the clock. This manual is written in Chinese.
Covers: Overview · Mother Clock Front/Rear Panel · Antenna Installation · Time and Timezone Settings · 1PPS Output · Serial Communication Interface
Latest 梦迪 manuals
Mengdí Electronics MD890 Series GPS Digital Clock User Manual
User Manual 9 pages · 1.4 MB · ZHThe MD890 series GPS digital clock manual explains features, installation, interface connections, time and timezone settings, and computer synchronization.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in 梦迪 manuals
How many slave clocks can a master clock control and what is the maximum cable length?
A single master clock can drive up to 32 slave clocks, with a cable distance of up to 1200 meters; additional slaves or longer distances can be expanded if needed.
From: Mengdí Electronics MD890 Series GPS Digital Clock User Manual
How can I adjust the display brightness?
Use the + or – button; each press changes the brightness by one level, with a total of 16 adjustable levels that are remembered after power loss.
From: Mengdí Electronics MD890 Series GPS Digital Clock User Manual