Mutec iclock, Operating Manual

Page: 11 / 42

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B E D I E N E L E M E N T E
B E D I E N E L E M E N T E
B E D I E N E L E M E N T E
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Manual SDs-01 D 3.2.2003 17:45 Uhr Seite 3
11
INSTALLATION
Content of the Box
The unit was packed carefully. Nevertheless we recommend to check the
content directly after opening the package:
1 x iCLOCK / iCLOCK dp
1 x Power cable, 2 x power cables for iCLOCK dp
4 x Rubber feet
1 x Manual
1 x Registration card
Placing the Device
The unit should be set up as closely as possible to the devices to which it
will be connected, so as to avoid excessive cable lengths. Use the 4 rubber
feets enclosed with the appliance and stick them symmetrically on the
bottom side of the unit to protect the enclosure and supporting surface
from being damaged.
The device can be mounted into a standard 19“ rack and will require 1
unit. In this case, the rubber feet cannot be attached. Install the device so
that one unit of rack space is left free both above and below the device to
allow for sufficient ventilation! The mounting depth including the termi-
nals is 240 mm/9.45“ for iCLOCK and 280mm/11.02 for iCLOCK dp. Another
60 mm/2.4“ should be added for the required cables.
Additional slide-in rails on the rack inside are recommended for safe instal-
lation. This will also avoid long-term mechanical deformation of the housing.
Wiring the Word Clock and Video Interfaces
To allow for synchronization of signals, the interfaces of all devices involved
must be properly connected to each other, so as to ensure a logical signal
flow. Always be sure to connect the Word Clock outputs of iCLOCK to the
according inputs of the devices you wish to synchronize! Cable lengths should
be kept as short as possible to minimize signal losses and/or interference!
For the transmission of Word Clock or video signals electrical, asymmetrical
cables with a resistance of 75
Ω
and BNC connectors on both ends are used.
Typically, such cables are marked »RG-59U, RG59B/U«.
Additionally, you should make sure that the Word Clock or video inputs to
be connected to iCLOCK’s outputs have a 75
Ω
terminating resistor! Most
Word Clock or video inputs allow for enabling/disabling the termination
with a so-called »termination-switch«, which may be located on the outside
or inside of the device.
For devices which have no termination of the Word Clock input, e.g. RME
Hammerfall with Word Clock i/o or Alesis BRC, you can use an additional
BNC-T piece to terminate the input. Plug the T piece with its center connec-
tor into the input of the receiving device. Then, connect the cable coming
from iCLOCK to one of the lateral connectors, and the other connector of
the BNC-T piece to a 75
Ω
resistor forming the BNC termination.
Basically, you should avoid »looping through« Word Clock leads by means
of passive BNC-T pieces to preserve the signal quality, as level drops will be
the result. If there is no other way to wire your set-up, please make sure
that all Word Clock inputs (except for the last device in the chain) have
their terminations disabled! In a serial Word Clock chain only the last clock
input should have a termination! Never connect more than three devices in
series to one output!
Clock Cable Lengths
It is imperative that the lengths of
all cables connected are largely the
same, as this is the only way to ensure that
all devices will be synchronized in phase
(exception: cable tolerances).
Please make sure that the cable used has a
resistance of 75
Ω , in compliance with the
specifications! If a cable with a different
resistance is used, a dramatic deterioration
of the signal quality can be the result! In
this case, the perfect synchronization of all
devices involved could be impaired.
!
We recommend using high-grade cables
with a good shielding for your clock signal
leads, in particular, if you need to transmit
Word Clock x 256 (so-called Super Clock)
signals over greater distances. In any case, a
length of max. 10 meters (approx. 30 feet)
should never be exceeded!
Before Powering Up
The condition of the packaging
material and the device should
be checked carefully additionally. If there
are any damages please refer to SAFETY
INSTRUCTIONS, Initial Operation, and
WARRANTY REGULATIONS.
Before installing the unit the section SAFETY
INSTRUCTIONS located at the beginning of
this manual should be read carefully.
Never expose the device and accessories to
rain, moisture, direct sunlight, or excessive
heat produced by radiators, heaters, or
spot lights! Sufficient air circulation in the
environment of the device must be ensured!
!