Instruction manual

Page 9
Page 9 of 74 UTY4422-001
SECTION 1
GENERAL INFORMATION
1.1 GENERAL
The purpose of this manual is to describe the proper installation and operation of the Wegener
Communications UNITY4422 MPEG Video Integrated Receiver Decoder.
1.2 INTRODUCTION
The UNITY 4422 IRD is an integrated receiver/decoder designed to receive SCPC or MCPC
DVB-compliant digital video signals transmitted by satellite. These include the new 4:2:0 and
4:2:2 chroma formats, as well as the traditional 4:3 and new 16:9 aspect ratios. The input to the
IRD is an L-band (950-2150 MHz) RF signal which is processed to produce NTSC or PAL
video, audio, e-mail output, and electronic-relay cueing signals. The IRD is fully network-
controlled via the Wegener Communications, Inc. (WCI) COMPEL control system.
The optional decryption feature for the IRD allows for use of WCI conditional access.
Authorization of each IRD is under network control.
In addition to network control, the IRD features a front-panel LCD interface for gathering local
status information. In addition, limited control of the IRD (if allowed by the COMPEL
network) may be implemented via serial port, connecting either to a local terminal (or via phone
modem) to a remote terminal.
The IRD has expansion ports for up to two add-in modules. Contact the Wegener Sales
Department about available options.
1.3 UNPACKING AND INSPECTION
Carefully unpack the unit and inspect it for obvious signs of physical damage which might have
occurred during shipment. Any damage claims must be reported to the carrier immediately. Be
sure to check the package contents carefully for important documents and materials.
1.4 INSTALLATION INSTRUCTIONS
To avoid damage to this and other equipment, or personal injury, the following items should be
strictly observed.
1.4.1 Elevated Operating Ambient
If equipment is installed in a closed or multi-unit rack assembly, the operating ambient of the
rack may be greater than the room ambient. Therefore, considerations should be given to the
TMRA, or Temperature inside the Mounting Rack, and not just inside the roomThe statements
on the second line tell which devices can be connected to Serial Port 2 when the device on the
top line is connected to Serial Port 1.
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