User Manual-Mac

Quick Reference: 2408mk3 I/O Rear Panel
Connect the 2408mk3 to the PCI-424 card here using the Audio Wire cable provided with your 2408mk3 system.
Connect up to three Tascam digital recorders or other TDIF compatible digital I/O devices to these three connectors.
These jacks provide stereo SPDIF digital input and output. To use them, choose the SPDIF format for one of the three banks in the PCI- 424 configuration window on your computer. Then assign the audio tracks in your software to the SPDIF outputs that appear in its output assignment menus. These jacks also double as (analog audio) SMPTE time code inputs and outputs. For complete details, see “Syncing to SMPTE time code” on page 41 and chapter 14, “MOTU SMPTE Console” (page 117).
This is an extra SPDIF stereo output jack, which carries a digital copy of the same signal as the main outs and Analog 1-2. You can connect it to whatever you want. For example, you could connect it to a DAT machine to record stereo mixdowns of your 2408mk3 projects.
These two balanced, quarter-inch jacks serve as the 2408mk3’s main outputs. They dupli- cate the material from channels 1 and 2 of the analog bank. To hear material from them, choose “Analog” as the desired format for one of the 2408mk3’s three banks (using the PCI-424 configuration window on your computer), and then assign any tracks you want to hear to Analog channels 1-2. Use the front panel MAIN OUT volume knob to control the level from these outputs.
The 2408mk3’s eight analog inputs are gold-plated, balanced +4dB TRS (tip/ring/sleeve) quarter-inch connectors. They have 24-bit, 64x oversampling converters. Each input pair can be set at +4dB or -10dB via the PCI-424 configuration window on your computer. Click the Interface Options button to access the input level settings. Note that you can use one of these inputs for SMPTE time code input, instead of the RCA connectors on the left side of the unit.
Use the word clock input and output for digital transfers with devices that cannot slave to the clock supplied by their digital I/O connection with the 2408mk3. Via software, you can switch the word clock output rate to either double or halve the 2408mk3’s system word rate. For example, if the 2408mk3 is running at 96 kHz, it can transmit 48 kHz word clock output. The WORD IN connector can also serve as a video input, which allows the 2408mk3 to resolve to video or blackburst. For details, see “Syncing to video” on page 42 and chapter 14, “MOTU SMPTE Console” (page 117).
Analog outputs 1 and 2 are dupli- cated on the 2408mk3’s main stereo outputs, as well as the front panel stereo headphone jack and the DAT SPDIF output.
Connect up to three ADATs or other ADAT optical digital I/O devices to these three connectors. Be sure to connect the optical cables “OUT to IN” and “IN to OUT”.
If you want, you can connect both an ADAT optical and a TDIF device to a bank. They will share the same output (regardless of which format you choose on the computer), but you can only record input from one format or the other at a time per bank (as chosen in the PCI Console software).
The 2408mk3’s eight analog outputs are gold- plated, balanced +4dB TRS (tip/ring/sleeve) quarter-inch connectors. They have 24-bit, 128x oversampling converters.