User manual APOGEE AMBUS FIREWIRE CARD

[. . . ] See "Optimizing FireWire Setup" for more information. Page 1 AMBus Card Operating Information Installing the AMBus Card To install the AMBus card, first make sure the power is turned off. You may wish to keep the unit plugged into a switched-off, grounded AC receptacle so as to minimize the chance of static discharge, and avoid standing on carpeting while carrying out this procedure. Keep the new AMBus card in its packaging until you are ready to install. Ground yourself by touching a connector on the unit's rear panel and unpack the card. [. . . ] Note that there is a set of buffers for the send section (applies to the data transmission buffer) and a set for the receive section (applies to the data reception buffer). · Buffer Length: Specifies the length (1­100 milliseconds) of each buffer in the mLAN driver. Notice that, as with the number of buffers setting, there is a separate parameter for the send and receive sections. · Receive: Enables "Receive" section to be configured in order for the recording application to receive digital audio from the external mLAN device. · Audio Sequences: Displays the number of audio sequences (mono channels) present in the received mLAN data. If this number does not match the actual number in the received data, then a red "Not Match" warning will flash to the right. Click on "Fit Sequences" to automatically match this parameter to the data being received. · MIDI Sequences: Displays the number of MIDI sequences (each MIDI sequence is equal to one MIDI cable) present in the received mLAN data. If this number does not match the actual number in the received data, then a red "Not Match" warning will flash to the right. Click on "Fit Sequences" to automatically match this parameter to the data being received. · Select Source: Click this button to select the mLAN device to which the recording application sends data. This will open the "Select Source" window (see below). Fig. 3 "Select Source" window features (Fig 3) 1 Device List: Select the desired mLAN device from which you would like to receive data. 2 Output Plugs: This list shows all channels present from the selected mLAN device source. 3 Disconnect: Click this button to disconnect the assigned sources from mLAN control panel transmission. 4 Update: Click this button to have the system rescan the connected mLAN devices to update their status. 5 Revert: Click this button to set all settings to their values when "Select Source" window was first opened. 6 OK: Click this button to assign the settings made and to close the "Select Destinations" window. 7 Cancel: Click this button to close the "Select Destinations" window without saving changes. Page 5 AMBus Card Operating Information mLAN Control Panel Features (Fig 1) continued · Fit Sequences: Clicking this button will automatically match the number of audio sequences displayed to actual number present in the incoming mLAN data. · Receive Status: This section displays the current status of some important parameters of the incoming mLAN data. · Revert: Click this button to return all settings to their values when the mLAN control panel was first opened. · Set: Click this button to save any changes you've made. Configuring the mLAN control panel Fig. [. . . ] As explained in the introduction, all FireWire devices are rated at a specific speed. Connecting two devices with different speeds will result in both units running at the lower of the two speeds. Let's consider a system with a FireWire-card-equipped Apogee Trak 2 and a computer. The computer's FireWire specification may be rated as S400, capable of a 400Mb/s transfer rate. [. . . ]