Teac X-48MKII - Manual (Page 14)

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TASCAM X-48MKII
I/O Card Installation
I/O cards of different types may be installed in the
X-48MKII simultaneously. For example, an X-48MKII may
have one analog card and one digital card installed, with
independent I/O routing. Each X-48MKII option card
provides 24 channels of input and output.
CAUTION
To install an I/O card, please contact the retailer where
you bought the unit or TASCAM support.
Making Connections
You may not use all the connections provided on the
rear of the X-48MKII, but they are there if you need them.
Just skip over the sections below that don’t apply to your
setup. For further information on routing to and from
these connectors, please refer to Section ‘I/O Settings’
(page 20).
CAUTION
Before connecting or disconnecting anything to a
connector, turn OFF the power of this unit and the devices
being connected (particularly, with VGA and similar
connections). Failure to do so could cause this unit or
connected equipment to be damaged.
TDIF
The X-48MKII comes standard with six DB25 connectors,
each one capable of carrying eight channels of I/O at
normal sample rates (44.1k, 48k) or double speed sample
rates (88.2k, 96k).
NOTE
Eight channels of double speed sample rate I/O on a
single TDIF connection is a new development for TASCAM
recorders and mixers. Please ensure that the equipment
you are connecting the X-48MKII to will support this by
contacting the manufacturer of that equipment.
CAUTION
Use only cables that are specified by the manufacturer
as “TDIF” cables. Using incorrect cables can damage your
equipment.
S/PDIF
The X-48MKII comes standard with two RCA jacks for
S/PDIF I/O at both normal and double speed sample rates.
CAUTION
To ensure clean data transmission, use only cables
specified by the manufacturer as “S/PDIF” cables.
AES/EBU
When installed into an X-48MKII Slot, an AES/EBU digital
I/O card (TASCAM IF-AE24X) will provide 24 channels of
I/O at normal sample rates (44.1k, 48k) or double speed
sample rates (88.2k, 96k).
The AES/EBU DB-25 pinout is pictured :
CAUTION
Use only DB25 cables specified by the manufacturer as
“AES/EBU” cables. Many cables look the same on
the outside.
Digital In Digital Out
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ADAT
When installed into an X-48MKII slot, an ADAT digital
I/O card will provide 24 channels of I/O at normal
sample rates (44.1k, 48k).
Digital Audio Clock
Any time multiple digital audio devices are connected
together, or multiple digital audio connections are used
simultaneously on a single device, all the digital audio
clock rates of the connected devices must be locked
together. If this is not done, or if it is done incorrectly,
clicks, distortion, or muted audio may result. The X-48MKII
may act as the master clock to other devices in a system,
or it can lock its clock to an external device.
This section will only deal with the physical connections
to achieve clock lock. For system configuration, please
refer to ‘Digital Audio Clock’ (page 19). Note that all digital
audio clock related connections may be connected
simultaneously, with the needed one selected in the user
interface.
If the X-48MKII is digitally connected to only one other
device, the clocks may be locked via that connection,
requiring no other connection be made.
Word Clock
If the X-48MKII is digitally connected within a system
of more than two digital devices, it is recommended to
use Word Clock from one master source, distributed to
all devices. The X-48MKII’s rear panel BNC Word Clock
connectors have the following uses:
IN
This connector receives word clock from
another device. When used, the X-48MKII
should be configured to Lock to Word Clock.
OUT This connector transmits word clock to other
devices. When used, the X-48MKII should be
configured to Internal Clock.
3 – Setup