TASCAM DM-24 Installation and Use Owners Manual - Page 39

5 - Setting up the I/O-Assigning inputs to channels Return modules Return sources are available for channels 1 through 24 (channels 25 through 32 are input only). The return options for each group of eight channels are selected by moving the cursor to the RETURN field at the left of the list of channels, and using the dial to select from the available options. Press ENTER to confirm the setting. NOTE If a slot card has not been fitted, an error message appears. Press ENTER to dismiss the message. Each group of eight channels is assigned to use the same return source block (though it is possible to mix inputs and returns within the same block). It is important to note the following: • The returns from TDIF1-1 cannot be assigned and used at the same time as the returns from a card fitted in slot 1. • The returns from TDIF1-2 cannot be assigned and used at the same time as the returns from a card fitted in slot 2. • The returns from TDIF1-3 cannot be assigned and used at the same time as the returns from the internal ADAT connector. Digital inputs Each digital input has two connectors; an XLR-type connector and an RCA pin jack. One of these is selected for input as described here. These connectors can both be used for either AES/ EBU or SPDIF data, and the data format is automatically detected by the DM-24-no settings are necessary to choose the data format. The first 24 channels may have the following sources assigned to them as returns: Channel 1,9,17 2,10,18 3,11,19 4,12,20 5,13,21 6,14,22 7,15,23 8,16,24 Return signal TDIF1-3 Trk1 / Slot1-2 Trk1 / Slot1-2 Trk9 / Slot1-2 Trk17 / ADAT Trk1 TDIF1-3 Trk2 / Slot1-2 Trk2 / Slot1-2 Trk10 / Slot1-2 Trk18 / ADAT Trk2 TDIF1-3 Trk3 / Slot1-2 Trk3 / Slot1-2 Trk11 / Slot1-2 Trk19 / ADAT Trk3 TDIF1-3 Trk4 / Slot1-2 Trk4 / Slot1-2 Trk12 / Slot1-2 Trk20 / ADAT Trk4 TDIF1-3 Trk5 / Slot1-2 Trk5 / Slot1-2 Trk13 / Slot1-2 Trk21 / ADAT Trk5 TDIF1-3 Trk6 / Slot1-2 Trk6 / Slot1-2 Trk14 / Slot1-2 Trk22 / ADAT Trk6 TDIF1-3 Trk7 / Slot1-2 Trk7 / Slot1-2 Trk15 / Slot1-2 Trk23 / ADAT Trk7 TDIF1-3 Trk8 / Slot1-2 Trk8 / Slot1-2 Trk16 / Slot1-2 Trk24 / ADAT Trk8 As can be seen, it is possible for the same return to be assigned to more than one channel at the same time (of course, it is not possible for one channel to accept the signal from more than one return at the same time). Although the return module for each block can be selected, the channels of the module cannot be changed. For example, if an MTR return is assigned to channels 1-8, track 2 of an MTR cannot be assigned to channel 1. Track 3 can only be assigned to TDIF channel 3 (in the TDIF1, TDIF2, TDIF3 return source blocks), or ADAT channel 3, etc. Note, though that when slot cards are fitted, the number of the channel in the slot card may be offset by 8 or 16, so that channel 9 (or 17) of slot card 2 may be assigned to channel 1, etc. See "The FORMAT screen" on page 26 for details of how to set the parameters for sampling frequency conversion, etc. at these inputs. However, although there are two physical connectors for these inputs, the audio data for an input can only be accepted from one of these connectors at any one time. TASCAM DM-24 Reference Manual 39