Electromed

Wired Master Slave Clock System

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Wired Master Slave Clock System

Electromed’s Wired Master-Slave Clock System offers precise, synchronized timekeeping for complex indoor environments like offices, hospitals, and buildings with multiple closed rooms. The Master Clock, featuring GPS, serves as the primary time source, which then sends accurate time data to slave clocks via RS485 connections, ensuring unified time displays throughout the facility.

The RS485 wiring enables consistent time synchronization across multiple clocks without relying on a clear line of sight. This makes it ideal for settings with physical barriers, as the RS485 signal remains unaffected by walls and floors. The master-slave setup ensures every clock is in sync with the GPS time, providing consistent and accurate time displays across all rooms and hallways.

Easy to install and maintain, Electromed’s RS485 system provides reliable time synchronization without frequent adjustments. It’s designed for facilities needing dependable timekeeping in various rooms, enhancing coordination and punctuality across departments. With Electromed’s RS485 clocks, organizations benefit from seamless, synchronized time across all spaces, promoting smooth operations and productivity.

When to Use Different Clock Systems
Parameter Standalone GPS Clock Wired Master Slave Clock System Wireless Master-Slave Clock System
Best Use Ideal for locations with open sky access, requiring only a single, standalone clock. Best for buildings with physical barriers and closed rooms, providing stable synchronization through wired connections. Perfect for flexible clock positioning in large spaces with minimal infrastructure.
Installation No wiring or master clock dependency; each clock operates independently with GPS synchronization. Requires RS485 or similar wiring for stable communication across multiple clocks. Requires only a power source for each clock, with the master clock wirelessly connecting to all slaves.
Advantages Excellent for outdoor setups with accurate timekeeping, independent of a master clock. Delivers consistent, synchronized time across multiple clocks connected to a central master clock. Flexible and scalable, with easy setup in large or dynamic spaces requiring synced time displays.
Available in Multiple Digit Sizes

4″, 6″, 8″, 12″, 18″, 24″ seven-segment displays

Key Features

GPS Time Sync
Automatic synchronization for precise timekeeping.

No User Interaction
Fully automated with no buttons or manual adjustment.

Standard Power
Runs on 220V 50Hz power supply.

Weather Resistant
Durable, ideal for outdoor use.

Maintenance-Free
No ongoing maintenance required.

Clear Visibility
Seven-segment displays in multiple sizes.
For full detailed specifications, please download Datasheet from above link

Synchronization
Sync Type Manual Setting GPS NTP Server RS485 Master Slave Zigbee Slave
Accuracy ±60 sec/day ±10 ms ±1-10 ms ±10 ms ±10 ms
Configuration Time <5 min 10-15 min 15-30 min 15-30 min 15-30 min
Dependencies None GPS Antenna Network Access Zigbee Network
Signal Source N/A GPS Satellites NTP Server GPS on Master Clock GPS on Master Clock
Setup Complexity Low Medium High Medium Medium
Power Consumption Standard Standard + GPS module Standard + Network module Standard Standard + Zigbee module
Maintenance Interval Monthly Quarterly Quarterly Quarterly
Time Drift High Negligible Negligible Negligible Negligible
Environmental Impact None Obstructions, Weather Network Quality Interference, Obstructions Interference, Obstructions
Use Cases Low-Precision High-Precision Enterprise Industrial, Wireless Industrial, Wireless
Display Specifications
Model CLxx-4D CLxx-6D CLxx-14D
Display Format HH:MM HH:MM:SS DD.MM.YYYY HH:MM:SS
Digits 4 6 14
Display Color Red Red Red
Display Type Refer Table Refer Table Refer Table
Display Height Refer Table Refer Table Refer Table
Viewing Distance Refer Table Refer Table Refer Table
Model: CLxx-4D          Format: HH:MM
Model Display Height Display Type Viewing Distance Dimensions
Cl02-4D 2” FnD 20 meter 144 x 288 x 160
CL04-4D 4” FnD 50 meter 190 x 460 x 80
CL06-4D 6” Dot LED 100 meter 260 x 750 x 80
CL08-4D 8” Dot LED 125 meter 280 x 800 x 80
CL12-4D 12” Dot LED 200 meter 480 x 1120 x 80

Model: CLxx-6D          Format: HH:MM:SS
Model Display Height Display Type Viewing Distance Dimensions
CL02-6D 2” FnD 20 meter 144 x 288 x 160
CL04-6D 4” FnD 50 meter 190 x 460 x 80
CL06-6D 6” Dot LED 100 meter 260 x 750 x 80
CL08-6D 8” Dot LED 125 meter 280 x 800 x 80
CL12-6D 12” Dot LED 200 meter 480 x 1120 x 80

Model: CLxx-14D          Format: DD.MM.YYYY HH:MM:SS
Model Display Height Display Type Viewing Distance Dimensions
CL02-14D 2” FnD 20 meter 144 x 288 x 160
CL04-14D 4” FnD 50 meter 190 x 460 x 80
CL06-14D 6” Dot LED 100 meter 260 x 750 x 80
CL08-14D 8” Dot LED 125 meter 280 x 800 x 80
CL12-14D 12” Dot LED 200 meter 480 x 1120 x 80

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