TDIF 3 or ADATOnce the preferred “return” interfaces have been selected, they can be assignedto channels 1-24 in groups of eight. For instance:Slot 1 to channels 17-24TDIF 2 to channels 1-8ADAT to channels 9-16OPTIONS• IF-TD/DM (TDIF I/O) $249 (supported in version 2.0)• IF-AD/DM (ADAT lightpipe I/O w/ ADAT Sync (ADAT sync will besupported in future frimware.) $249• IF-AE/DM (AES/EBU I/O on a D-25 connection) $299• IF-AN/DM (Analog I/O on two D-25 connections) $499• IF-CS/DM (Cascade card w/ cascade cable) $299• MU-24 (Meter bridge plus cable) $949• Each of the optional interface cards has 8 channels of I/O.• The IF-TD/DM TDIF option card will be supported with version 2.0. Thiscard does NOT add 8 TDIF inputs. The DM-24 only supports 24 channelsof digital “RETURNS.” When mixing 24 channels of TDIF “RETURNS” in5.1 surround, the IF-TD/DM can be used to send the 6 buss outputs to aTDIF stem recorder like a DTRS machine. This is the only use for thiscard with a DM-24. The IF-TD/DM is also compatible with the TASCAMSX-1 and future TASCAM products.• Mixing 24 tracks of ADAT or any other lightpipe device requires twooptional IF-AD/DM ADAT I/O cards. The IF-AD/DM does NOT support96kHz. ADAT sync is not yet functional and will be supported in a futureversion of firmware.• Adding two IF-AE/DM AES/EBU cards provides a total of 20 channels ofAES/EBU I/O (four channels come standard on the DM-24.) The IF-AE/DM AES/EBU card supports 4 channels of DUAL LINE or HI SPEEDI/O.• Two IF-AN/DM analog cards are necessary if 32 channels of analog inputare required. This configuration requires specific settings on the DM-24.Assign SLOT 1 to channels 1-8, SLOT 2 to channels 9-16, Mic/Line inputs1-8 to channels 17-24 and Mic/Line inputs 9-16 to channels 25-32. Manypeople use the DM-24 as a live mixer this way. You can also use thisanalog I/O for aux sends and returns, leaving your assignable sends andreturns for use as assignable “inserts.” The IF-AN/DM does not offer micpreamps, only balanced analog I/O on 2 D-25 jacks. Adding one IF-AN/DM to the DM-24 does NOT allow you to record 24 trackssimultaneously. This is a bussing issue that will be addressed in a futureversion of firmware.