DigiDesign 888/24 I/O - 50-pin Interface Connector; S;PDIF Digital Input;Output; Slave Clock In;Out; Power Input

Using the 888/24 I/O 5
5. 50-pin Interface Connector
This 50-pin Computer connector is used to
connect the 888/24 I/O to a MIX card, d24
audio card, Disk I/O card, or a DSP Farm
card. The necessary cable is supplied with
your Audio Interface. If you plan to con-
nect two 888/24 I/O Interfaces to a MIX
card or d24 card, a 16-channel peripheral
cable adapter is necessary. (This cable is
available from your Digidesign dealer.)
6. S/PDIF Digital Input/Output
The Sony Phillips Digital Interface Format
(S/PDIF) is used in many professional and
consumer CD players and DAT recorders.
The 888/24 I/O S/PDIF in/out jacks are un-
balanced 2-conductor phono (RCA) jacks
which utilize a full 24-bit digital data
stream. To avoid RF interference, use 75-
ohm coaxial cable for S/PDIF transfers and
keep the cable length to a maximum of 10
meters.
Because input channels 1–2 of the
888/24 I/O are software selectable between
analog or digital format, input to these two
digital channels is disabled when analog
input is chosen or when AES/EBU digital
format is chosen in the Pro Tools Session
Setup window. Output is continuously ac-
tive on both the AES/EBU and S/PDIF out-
put jacks, regardless of which digital input
format is selected for channels 1–2. To
avoid RF interference, use 75-ohm coaxial
cable for S/PDIF transfers and do not ex-
ceed a cable length of 10 meters.
7/9. Slave Clock In/Out
The Slave Clock Out jack is a standard BNC
type connector that outputs a 256 times
sample rate Super Clock signal for slaving
and synchronizing multiple Digidesign In-
terfaces and synchronization peripherals
together.
When the 888/24 I/O Sync Mode is set to
Internal, connecting a valid Slave Clock
Out signal to this port will cause the
888/24 I/O to automatically switch to Slave
mode. When the 888/24 I/O is the master
interface or the first interface in a chain,
Digital sync mode overrides the Slave
Clock input, and an incoming Slave Clock
Out signal will not switch the 888/24 I/O
to Slave mode.
Because crucial timing data is passed over
these ports, you should use high-quality,
75-ohm RG-59 cables for making connec-
tions, and keep total cable length to less
than 3 meters between interfaces.
8. Power Input
This connector accepts a standard AC
power cable. The Interface is auto power-
selecting (100V to 240V) and will automat-
ically work with a standard modular cable
to connect to AC power receptacles in any
country.