D-Clock-R Dual Redundant Word Clock Distribution Amplifier

The D-Clock-R front panel across the width of the page

Dependable, Dual Redundant Clock Distribution

Building on the renowned D-Clock, the D-Clock-R adds dual redundancy for both power and clock inputs, making it the perfect choice for studios, live venues and broadcast facilities where reliability and stability are essential.

Engineered for Live & Broadcast Use

Designed for fail-safe operation, the D-Clock-R ensures continuous performance even in the event of a fault. Both the power and clock inputs feature full redundancy, so the system keeps running no matter what.

Dual Redundant Power Supply

Two independent, universal-voltage power supplies share the load during normal operation. If one fails, the other instantly takes over, keeping the unit running seamlessly.

showing the three frequency display formats of the DClock-R

High-Precision LCD Display

A 16-character blue LCD shows the incoming sample rate with 2ppm accuracy, displayed in three modes: actual frequency, nominal frequency with ±ppm error, or percentage pull up/down.

Auto-Sensing Clock Inputs

Two BNC inputs (default and auxiliary) automatically detect and lock to either word clock or AES3id, maintaining continuous, error-free operation. Twelve BNC outputs on the rear panel and four on the front provide flexible distribution across any digital setup.

The two word clock BNC inputs of the DClock-R

Features:

Dual redundant power supply via two universal voltage filtered mains inlets for continuous operation and reliability
Independent power supplies share load and provide automatic failover in the event of a fault
16-character blue LCD display with three sample rate measurement modes, accurate to 2ppm
Auto-sensing dual redundant word clock/AES3id BNC inputs for continuous, dependable operation
Two inputs capable of locking to both word clock and AES3id sources
Twelve BNC clock outputs on the rear panel plus four on the front for quick patching to other digital devices
Classic Drawmer build quality with rugged steel chassis and aluminium front panel
Designed and handmade by Drawmer in the United Kingdom

A line drawing of the front and rear panels of the D-Clock-R showing controls and connectors

Specifications:

	Description	Value
INPUT	BNC Wordclock Input Sensitivity	Dual 75ohm BNC Auto selecting
MAIN OUTPUTS	BNC wordclock outputs	16 x simultaneous re-buffered BNC wordclock outputs with 33 ohm output impedance. 4 of which are on the front panel for ease of connectivity.
DISPLAY	Blue/white LCD display with three switchable modes of operation with mode led indicators for each:
	Frequency	actual frequency up to >768KHz
	+/- ppm	nominal sample rate with +/- ppm error indication for 32,44.1,48,96 & 192KHz
	+/-%	Nominal sample rate with percent pull up/down indication for 32,44.1,48,96 & 192KHz
	Accuracy	2ppm at all sample rates up to 768KHz. 0.1 Hz increments @ 48KHz sample rate

	Description	Value
INDICATORS	Wordclock/AES-3id clock present led indicators.
	Active input led indicators.
	PSU active led indicators.
POWER	Power Supply	2 x Internal identical, Universal Input, 10 W for Dual Redundancy
	Power Requirement	<6W
FUSE RATING	All Voltages	T500mA
	Conforming to IEC 127-2
FUSE TYPE	20mm x 5mm, Class 3 Timed-Blo, 250Volt working
CASE	Depth	145mm
	Width	482mm
	Height	44mm
	Weight	1.7kg

In the interests of product development, Drawmer reserve the right to modify or improve specifications of this product at any time, without prior notice.

Downloads:

Below you will find various downloads to provide further information and resources.

	Description	Link
	D-Clock-R User Manual
	Higher Resolution Images of the D-Clock-R
	D-Clock-R Literature
	D-Clock-R Line Drawings
	Tips: Word Clock Synchronization - why and when you need it.

D-Clock-R

DUAL-REDUNDANT WORD CLOCK DISTRIBUTION AMPLIFIER