ATI Audio MCDA208 - Manual (Page 4)

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NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference in which case the user will be required to correct the interference
at his own expense.
West Berlin, NJ USA, 31 July 2009
President
AIR TEMPERATURE AND HUMIDITY
Normal operation of this unit is warranted while operating in a temperature range of +5 to
+40°C, with relative humidity ranging from 5 to 85%. Care should be taken to avoid operation
outside these limits or erratic operation may result.
FUNCTIONAL STANDARDS
All Model MCDA-208 units are in conformity with the following industry standards:
AES3-2003, AES11-2003 and IEC958 SPDIF
DESCRIPTION
The ATI Model MCDA-208 contains an ultra-low jitter studio master clock generator, dual 1X4
AES/EBU Digital Audio Distribution. Operation of the unit is simple and straightforward, and it is
housed in a rugged 2U rack mount enclosure. All audio connections are made directly to the
unit’s built-in BNC connectors, and no special breakout cables or accessory jack panels are
required.
When used as a studio master clock, the MCDA can generate an exceptionally stable 44.1, 48,
88.2, 96, 176.4 or 192 kHz clock reference for the purpose of synchronizing all of your
connected digital equipment. This single clock source assures a trouble-free digital workflow
throughout your digital facility. The output clock format can be either Word Clock or Super Word
Clock, and this signal is available on all eight of the MCDA’s individually driven BNC outputs.
The Clock Generator output can also be routed to either or both Clock output groups.
If you prefer to use another source for your reference clock, the MCDA can function as a 2X8
Clock Distribution Amplifier. It can accept an AES3 audio signal or an AES Word Clock as an
input, and will output either Word Clock or Super Word Clock from its eight BNC output
connectors. These reference clock signals can also be routed to either or both Clock output
groups as word clock.
The Clock Generator section provides automatic switchover, as well as dual redundant back-up
control. Failure of an external clock will cause the Clock Generator to automatically generate its
own preprogrammed reference signal. Internal clock can also be selected manually. The
MCDA’s dual redundant back-up control allows one MCDA unit to be designated as a master
while a second MCDA serves as the slave; it’s clock source then becomes active when the
master clock’s clock is not active.