I/O Cards & Cables - Mackie HDR 24 Operation Manual

AIO•8
ANALOG I/O
DIO•8
APOGEE
DIGITAL I/O
OPT•8
PDI•8
PDI• 8
8
HDR 24/96
I/O Cards & Cables
I/O cards are available in four different flavors and can be mixed and matched in
any combination:
AIO•8
• Each AIO•8 provides 8 analog line-level inputs and outputs on two 25-pin
D-subminiature (DB25) connectors. These connectors are pin-for-pin
compatible with the analog (not TDIF) DB25 connectors found on the
TASCAM DTRS recorders. DB25 cables that break out to XLR or 1/4" TRS
connectors for mating with your console are readily available.
DIO•8
• Each DIO•8 provides 8 digital inputs and outputs in two formats:
1. TASCAM Digital Interface (TDIF) provides 8 input and output channels
of digital audio on a single DB25 connector. It requires a TASCAM
PW-88D or equivalent TDIF-compatible cable.
2. ADAT Optical provides 8 channels of digital audio on fiber-optic cable.
Two optical cables are required for each card, one for inputs, the other
for outputs. Both cables must connect to the same device, creating a
closed loop.
3. The DIO•8 also provides a TDIF word clock sync output for use with
older TASCAM equipment.
OPT• 8
• The OPT•8 is a low-cost, ADAT Optical-only version of the DIO•8 card.
The previous ADAT information also applies to this card.
PDI• 8
• Each PDI•8 carries four stereo pairs (eight channels) of digital input and
output on a single DB25 connector. This card supports the AES/EBU
(IEC-958 Type 1) digital interfacing standard carrying two channels of
digital audio on a single balanced cable. The PDI•8 can also be configured
for the consumer (IEC-958 Type 2, or S/PDIF) data format if required.
DB25 cables that break out to XLR connectors, and double-ended DB25 to
DB25 AES/EBU cables for mating with your console, are readily available.
The PDI•8 is the only Mackie I/O card that currently supports 88.2 or 96
kHz operation. At these Sample Rates the PDI•8 card runs in "double-
wide" (dual-wire) mode. In double-wide mode, the PDI•8 carries four mono
channels of digital I/O by transmitting two consecutive 88.2/96k samples
of the same channel on a single conductor.
Note: Different manufacturers use different wiring standards for DB25 in-
terface cables (both analog and digital) that otherwise look the same. Make
sure the cable you are using is the correct one. See Appendix A for a list of
compatible I/O card cables for the HDR24/96.