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Jumbo Clocks · RS485 Master-Slave Series

RS485 Wired Master-Slave Clock Systems for Multi-Display Synchronization

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…

RS485 Master-Slave Multi-Display Sync Wired System Cost-Effective
Wired Master Slave Clock System
RS485 Wired Robust serial communication with up to 32 slave displays per master
Multi-Display Single master synchronizes multiple area clocks system-wide
Cost-Effective Simple wiring reduces installation cost vs individual units
Reliable Industrial RS485 proven reliability for tough environments

Wired Master Slave Clock System Models

CL02

CL02 (HH:MM)

Size CL02 (2" Digits)
Connectivity RS485 Slave
Dimensions 140mm × 280mm × 135mm
Enclosure MS Powder Coated
CL04

CL04 (HH:MM:SS)

Size CL04 (4" Digits)
Connectivity RS485 Slave
Dimensions 210mm × 560mm × 135mm
Enclosure MS Powder Coated
CL06

CL06 (HH:MM:SS)

Size CL06 (6" Digits)
Connectivity RS485 Slave
Dimensions 315mm × 840mm × 150mm
Enclosure MS Powder Coated
CL08

CL08 (HH:MM:SS)

Size CL08 (8" Digits)
Connectivity RS485 Slave
Dimensions 420mm × 1120mm × 180mm
Enclosure MS Powder Coated

Need a different size or sync type? Tell us your requirement — we custom-build to spec.

RS485 Wired Master-Slave Clock Systems for Multi-Display Synchronization

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.

Wired Master Slave Clock System
RS485
Protocol
32 Max
Slave Clocks
1200m
Cable Distance
HH:MM/SS
Formats

Full Specification Table

Synchronization
Sync TypeManual SettingGPSNTP ServerRS485 Master SlaveZigbee Slave
Accuracy±60 sec/day±10 ms±1-10 ms±10 ms±10 ms
Configuration Time<5 min10-15 min15-30 min15-30 min15-30 min
DependenciesNoneGPS AntennaNetwork Access-Zigbee Network
Signal SourceN/AGPS SatellitesNTP ServerGPS on Master ClockGPS on Master Clock
Setup ComplexityLowMediumHighMediumMedium
Power ConsumptionStandardStandard + GPS moduleStandard + Network moduleStandardStandard + Zigbee module
Maintenance IntervalMonthly-QuarterlyQuarterlyQuarterly
Time DriftHighNegligibleNegligibleNegligibleNegligible
Environmental ImpactNoneObstructions, WeatherNetwork QualityInterference, ObstructionsInterference, Obstructions
Use CasesLow-PrecisionHigh-PrecisionEnterpriseIndustrial, WirelessIndustrial, Wireless
Display Specifications
ModelCLxx-4DCLxx-6DCLxx-14D
Display FormatHH:MMHH:MM:SSDD.MM.YYYY HH:MM:SS
Digits4614
Display ColorRedRedRed
Display TypeRefer TableRefer TableRefer Table
Display HeightRefer TableRefer TableRefer Table
Viewing DistanceRefer TableRefer TableRefer Table
Full dimensional drawings and wiring diagrams in the datasheet. Download Datasheet (PDF)

Product Documentation

Wired Master Slave Clock System — Product Datasheet

Technical specifications, dimensions, wiring diagrams

Download

Where It's Installed

🏭

Production Floors

Master clock syncs all area displays via single RS485 cable run

🏥

Hospitals

Central coordination of clocks across departments and wards

🎓

Educational

Campus-wide time sync from single master clock location

Need a Quote or Custom Spec?

Our engineers respond within 24 hours. Tell us your display size, sync type, and quantity.

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