MCDA-112 Series 2 Ultra-Low-Jitter Studio Master Clock And 1x12 Clock Distribution Amplifier OPERATING AND MAINTENANCE MANUAL © Copyright 2011, ATI Audio Inc.
Table of Contents Safety Information Unpacking Installation Location Grounding Electromagnetic Capability Maintenance Declarations of Conformity Air Temperature & Humidity Description Inputs Outputs Front Panel Display & Switches Rear Panel Connections & Switches Installation Specifications Warranty 3 3 3 3 3 3 3 4 4 4 4 5 6 6 7 8 MCDA-112 FEATURES Switchable for use as master clock source or 1X12 clock DA Accepts AES3, AES11 Word and Super Word Clock inputs Generates standard sample rates of 4
SAFETY INFORMATION To reduce risk of electric shock, do not remove covers. There are no user-serviceable items inside. Please refer servicing to qualified personnel. UNPACKING Examine all shipping cartons for external damage and retain all damaged cartons for inspection by the carrier. Examine all equipment for any sign of damage. Do not connect AC mains power to a unit which appears to be damaged. Contact the carrier to file a damage claim.
AIR TEMPERATURE AND HUMIDITY Normal operation of this unit is warranted under ambient conditions defined by EN 60721-3-3, set IE32, value 3K3. The most important conditions of this standard are ambient temperature +5 to +40°C, relative humidity 5% to 85% (with no ice or condensation), absolute humidity 1 to 25 g/m3 and rate of temperature change <0.5°C per minute. Care should be taken to avoid operation outside these limits or erratic operation may result.
FRONT PANEL DISPLAYS AND SWITCHES POWER Indicates that low voltage DC is applied to the input of the voltage regulators. EXTERNAL CLOCK FORMAT SELECT When using an external clock source as a reference, the MCDA-112 accommodates a variety of input formats, as listed: Word Clock—Input through the 75 ohm BNC Input connector on the rear of the unit. Super-Word Clock—Input through the BNC connector on the rear of the unit. AES3—A standard AES/EBU signal.
CLOCK SOURCE When set to Internal, the MCDA-112 generates the clock reference and applies it to all outputs. When set to External, the MCDA-112 accepts an external clock or AES input and applies this reference to all outputs. FRONT PANEL LOCK The FRONT PANEL LOCK button is a feature on all Series 2 products. It is intended to reduce the possibility of inadvertent changes to front panel settings.
Expensive components start to die at internal temperatures above 70°C (158°F). We recommend that you maintain rack temperatures below 50°C (122°F) to prevent excessive internal temperature buildup. POWER If it is necessary to convert a unit wired for 115VAC to 230VAC operation, unplug the unit from the power source, remove the cover mounting screws and locate the jumpers next to the power transformer.
One Year Limited Warranty DaySequerra warrants ATI products to be free from defects in materials and workmanship to its original owner for one (1) year from the date of purchase. DaySequerra will repair or replace such product or part thereof that upon inspection by DaySequerra, is found to be defective in materials or workmanship subject to conditions contained herein. ATI products are sold worldwide, through a network of authorized ATI dealers and distributors.
