User manual APOGEE AMBUS SDIF CARD

[. . . ] SDIF AMBus Card Operating Information v 1. 0 AMBus SDIF Card 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 AD-8000 rear panel and unpack the card. [. . . ] Remember that ABS is a two-way, realtime process: you can monitor a 24-bit ABS signal in destination mode while you are recording it (see below). Recording and Playback with the TDIF8 Card Recording Having installed the card, select the mode you wish to use according to the DIP switch settings described above. We will describe the procedure for simple (non-ABS) recording, using the AD-8000 as the timing reference. The only differences when recording in an ABS mode are the settings of the card switches and the synchronization of multiple machines, if they are used, and these are covered in the following section. To synchronize the AD-8000 to a different timing source, see the AD-8000 manual. It is recommended to adjust DIP switch settings with the power off to ensure that settings changes are registered. Use a standard TDIF interconnect (Tascam part # PW-88D or PW-88L) to link the card to the TDIF device. Now, determine which of the units is to provide the clock timing reference. To make the AD-8000 the timing reference, connect the Word Clock Out BNC connector on the TDIF8 card to the Word Sync In on the DTRS machine, using a high-quality Word Clock interconnection cable such as Apogee's Wyde Eye. (Note: It is preferable to use the Word Clock Out connector on the TDIF8 card for this purpose than the Word Clock Out BNC on the rear of the AD-8000 panel. ) Set the DTRS machine to utilize external Word Sync. Choose Crystal as the AD-8000 sync source, setting the sample rate on the AD-8000 as desired. To make the DTRS machine the timing reference using Word Clock: Choose the required sample rate (Fs) on the DTRS machine (on replay, this will be set automatically). Connect the DTRS machine's Word Sync Out BNC connector to the Word Clock In BNC on the rear of the AD-8000, and set the AD-8000 Sync Source to Word Clock (WC). Page 2 TDIF Card Operating Information v 1. 5 It is also possible to synchronize the AD-8000 to the DTRS machine by using LRCK instead of Word Clock, although Word Clock is preferable (and LRCK is 90 degrees out of phase with Word Clock). To use LRCK, do not connect the Word Clock Cable and instead set the AD-8000 Sync Source to the TDIF8 AMBus card slot letter. Also see the discussion above relating to the setting of DIP switch SW4. Alternatively, you can synchronize the AD-8000 to other sources such as video (if the video sync module is installed) or a digital input. To record in normal (not bit-splitting) mode, ensure that DIP switches 1 and 2 on the card are set to OFF. You may now record-enable the channels on which you wish to record, and start recording!Playback Ensure that the TDIF machine and the AD-8000 are connected as described above, and check that the TDIF machine is in replay mode (not input). If you are in input mode during replay, the meters will not read and no signal of any kind will be output. Press the AD-8000 "DIGITAL IN" button and select the channel pairs you wish to enable for digital input, or simply hold the "DIGITAL IN" button to illuminate all eight digital input indicators and set all the channels to digital input. In the Digital Routing section of the AD-8000 front panel (upper far right of the unit), press the "SOURCE" button until the correct AMBus card is selected. Refer to the earlier section on the routing matrix to check the LED display indications are correct. [. . . ] If in 4/24 mode, and two cards are installed and being used for bit-splitting, then both cards are checked for errors. If one of the two cards indicates an error condition, then the DIGITAL IN LED will flash, and outputs won't be muted (in case only one card is being used). If both cards indicate an error, the ERROR LED will come on, and digital outputs will be muted (as in normal digital input error handling). If a single card set to 4/24 mode is installed and appears in slot A or C, ch 1-4 on the dot matrix for that row are lit up. [. . . ]