Electro-Voice DC-One, Руководство пользователя

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DC-One
Owner‘s Manual 15
26 – A.C. Power Switch
The A.C. power switch turns power to the DC-One On and Off.
27 – Link/Relay Interface
The operating mode of this dual purpose interface is selected in the Setup menu. Operating modes are:
• RS-232 Interface - Used to link two DC-Ones together in a Master/Slave setup. Connection is made
via a standard 9-pin null-modem serial interface cable with female connectors.
• Contact Closure Port - Eight contact closure pins plus ground for interfacing to 5 V contact closure
systems. Each pin can be assigned a preset that is recalled when voltage on that pin is detected. The
lowest pin number takes priority in multiple controller systems.
28 – Balanced XLR Outputs
Each output channel has an electronically balanced XLR connector for connection to system amplifiers.
Each output channel can output different frequency ranges depending on its assignment and cross-over
settings.
29 – AES/EBU Digital Input
In addition to the analog audio inputs, an AES/EBU digital stereo input is provided and selectable in the
Setup menu. The input conforms to IEC standard 60958 Type I. Connections must be made with three-
conductor, 110-Ohm, twisted pair cabling and an XLR connector.
30 – Balanced XLR Thru
Each analog audio input is connected to an electronically buffered and balanced output as a through
connector. The signal does not undergo any digital conversion or processing. These connectors are used
to pass input audio to a second DC-One used as a slave or to other audio inputs in the system.
31 – Balanced XLR Inputs
Each input has an electronically balanced, locking XLR connector. In stereo or dual modes, connections to
both inputs must be made. In mono modes, only one connection need be made, typically to Input A.
Care must be taken to assure that each output is connected to an appropriate
amplifier and loudspeaker to avoid damage or unexpected results. Note that
a new preset may change the assignment of channel and its frequency range.
For instance an output assigned to Hi frequency speakers in one preset, may
be assigned as a sub output in another. See “Configurations of the DC-One”.