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AES 42 In

This is a 3-pin XLR input for connecting a digital microphone.

AES/EBU Out

This is a 3-pin XLR output for the AES/EBU output signal. See the “XLR cables” section for permissible maximum cable lengths depending upon the selected sampling rate.

The AES/EBU signal includes 2 standard audio channels (stereo left and right).

In the case of synchronous operation with two mono microphones (see “Synchronization” sec- tion), the audio data are distributed as follows between the audio channels of the AES/EBU output signal:

•Channel 1 AES/EBU Out Left: Microphone 1 Right: Microphone 2

•Channel 2 AES/EBU Out Left: Microphone 2 Right: No signal

In all other cases, the following assignment ap- plies:

•Channel 1 AES/EBU Out Left: Microphone 1 Right: No signal

•Channel 2 AES/EBU Out Left: Microphone 2 Right: No signal

Control Bus

RJ-45 ports are provided for connecting a control device, which is generally a computer (PC or Mac). Standard Ethernet (patch) cables are used as connecting cables: Shielded Twisted Pair (STP) or Unshielded Twisted Pair (UTP).

Data transfer is effected via an RS 485 interface with an additional power-out pin, for the optional supply of an external control device.

Attention: The RJ-45 ports of the DMI-2 must not be connected to an Ethernet.

The two RJ-45 ports are connected in parallel, in order to permit cascading and computer operation with multiple DMI devices.

The DMI-2 is connected to the USB port of a PC or Mac. A USB/RS 485 converter is supplied for this

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purpose. This permits use of the plug-and-play capability of available USB ports together with the much longer cable lengths (at least 100 m) that are possible with an RS 485 connection.

ID [device address]

The device address is set by means of a coding switch on the back of the device. If multiple DMI devices are cascaded and controlled together, they must have different device addresses (IDs). The addresses that can be used are dependent upon the RCS control software employed. Cur- rently, only the addresses 0, 1, 2 and 3 are permitted (see also Section 5, “Setup”).

Attention: The device address should be changed when the DMI is not supplied with power, since the new address will not take effect until the next time the device is switched on.

Please see the RCS control software operating manual for information concerning the mode of operation and assignment of device addresses.

Attention: On the front of the device is an opening labelled “ID”. Here there is a push-button for various future functions, which will include a convenient means of setting the device address. However, at present this button is not yet opera- tional.

User Port

This permits direct control of microphone functions by means of external switch contacts or logic signals.

The assignments of the 9 pins are as follows (low- active):

Pin 1 Channel 1 “Light 2” off (red LED, currently only for the D-01 Solution-D microphone)

Pin 2 Channel 1 “Light 1” off (blue LED of Solution -D microphones)

Pin 3 Channel 1 mute switched on

Pin 4 Reserved

Pin 5 Ground

Pin 6 Channel 2 “Light 2” off (red LED, currently only for the D-01 Solution-D microphone)

Pin 7 Channel 2 “Light 1” off (blue LED of Solution -D microphones)

Pin 8 Channel 2 mute switched on

Pin 9 Reserved

The pins can be controlled via contact with ground, or alternatively by means of logic outputs (TTL logic level). For example, in the case of mut- ing, the mute can be activated and the red LED switched off via a single contact (e.g. for the “On Air” function).

Attention: The respective switch function is activated only when “User Port” has been selected in the RCS control software for the control of the relevant function.

4.Equipment supplied

•DMI-2 Digital Microphone Interface

•USB 485 converter

•USB cable

•RJ-45 cable

•Power cable

•Operating manual

•CD with RCS software and USB driver

5.Setup

The following steps are to be carried out for the initial installation of a digital microphone system consisting of the microphone, the DMI-2 Digital Microphone Interface, and the RCS control soft- ware.

First install the RCS control software and the associated drivers on your computer.

The minimum requirements for operation of the RCS control software on the computer are:

•Computer with Windows 98 SE, ME, 2000 or XP operating system, or Mac OS with PPC (ver- sion 8.6 or higher, and CarbonLib version 1.6 or higher)

•A free USB port

•10 MB of free hard disk space

•Graphics resolution of 1024 x 768 or more

•HiColor or TrueColor

•CD-ROM drive

•Mouse and keyboard

•Adobe Acrobat Reader (only for the online manual)

Start the setup program on the accompanying CD-ROM (Windows: “Setup”; Mac OS: “Install RCS”) and follow the instructions displayed on the screen.

Attention:

•Administrator rights are required for installa- tion with Windows 2000/XP or Mac OS X.

•The USB 485 converter must not be attached to a computer USB port until after the RCS soft- ware has been installed.

USB driver installation

After the RCS has been installed, the USB 485 interface converter must be connected to a computer USB port. This ensures loading of the supplied USB driver, which is required for operation of the converter. In the Windows operating sys- tem, if there is a query regarding the storage location of the driver files, the CD-ROM drive should be selected. Before confirmation, ensure that the installation CD-ROM has been inserted into the drive.

Other connections

Using a patch cable, connect the USB 485 converter to one of the RJ-45 ports (control bus) of the DMI-2.

Set the device address (ID) of the DMI-2 (using the coding switch on the back of the DMI). Addresses should be assigned beginning with “0”. The addresses 0 to 3 are currently supported by the RCS.

Attention: The ID is detected only during startup of the DMI-2. Therefore, switch the power supply off and then back on again after changing the ID, so that the change will be detected. (Refer to the “ID” section, page 11)

Connect the microphone, the DMI-2 and the subsequent device (e.g. mixing console) by means of XLR cables (see “XLR cables” section).

If the DMI and the connected microphones are to be synchronized with an external master word clock, use a BNC cable to connect the master word clock port to the Word Clock input of the DMI-2.

If multiple DMIs are used, they can be cascaded via the control bus. For this purpose, use an RJ- 45 patch cable to connect the second RJ-45 port of the initial DMI to one of the RJ-45 ports of the second DMI, etc.

If necessary, also transfer the word clock signal to additional DMIs, via the BNC output. Connect the DMI-2 to the power supply network.

US

13 GB