DTR-4630
I.R.T. Communications Pty Ltd | www.irtcommunications.com
Page 8 of 17
Revision 02
INSTALLATION
Pre-installation:
Handling:
This equipment may contain or be connected to static sensitive devices and proper static free handling precautions
should be observed.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Power:
AC mains supply:
Ensure that operating voltage of unit and local supply voltage match and that correct rating
fuse is installed for local supply.
DC supply:
Ensure that the correct polarity is observed and that DC supply voltage is maintained within
the operating range specified.
Earthing:
The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure
that the frame is connected to earth for safety reasons. See frame manual for details.
Signal earth:
For safety reasons a connection is made between signal earth and chassis earth.
No attempt should be made to break this connection.
Installation in frame or chassis:
See details in separate manual for selected frame type.
Signal Connections:
The default setting of the DTR-4630 is to automatically operate at either
2.97 Gb/s 3G-SDI
,
1.485 Gb/s HD-SDI
or
270 Mb/s SD-SDI / ASI
signals and do not require any adjustment prior to use, with the exception of link and DIP
switch options described in the
Configuration
section of this manual that also allow SD only, HD/SD only or
reclocker bypass modes of operation.
The transmitter and receiver sections of the DTR-4630 act independently from each other in that the signal rates
are both independently set.
The serial digital signal connections are made to the BNC connectors on the rear panel. IN 1 is the primary input to
the transmitter section of the DTR-4630. With DIP switch SW1-6 OFF, IN 2 becomes the secondary input and will
switch in automatically on loss of a valid input to IN1. Upon restoration of a valid signal to the IN 1 port, the optical
transmitter automatically restores back to the signal on the IN 1 port. With SW1-6 ON, automatic changeover is
disabled and IN 2 is ignored.
With link LK 1 IN, the OUT 1 BNC connector acts as a monitor port for the transmitter section. It will monitor either
the IN 1 or IN 2 input depending on which input is actually feeding the optical transmitter.
With link LK 1 OUT, the OUT 1 BNC connector acts as one of the optical receiver section outputs. OUT 2 is always
an output of the optical receiver section, regardless of link or DIP switch settings.
