TV distribution via CAT5 structured cabling with full interactivity

High quality video and stereo audio routing

Signal distribution over CAT5 structured cabling

Full interactivity via infrared control

Fully compatible with all standards of modulated IR and IRDA

Automatic cable compensation

On-screen display

Distributes signals over 300m

Expandable on-site

Remote powering of receiver

Variable input versions 16/32/48/64/128

Overview
The IRX-SW series of products provide a unique combination of:

• High quality video and stereo audio matrix
• Remote infrared control with pass-through
• Signal distribution via CAT5 cable

Combining these functions creates an extremely powerful and cost effective product for use in monitoring, security and AV distribution. Housed in standard 19" rack mounting cases, various models are available allowing multiple configurations and applications. Each output comes with a small discrete receiver unit providing a high quality signal conversion from the CAT5 cable to the television, computer or other display device.

IR Control
The SmartNet-V products allow the extension of infrared control signals via a single category 5 twisted pair cable. Using a unique method of transparent data transfer, the system allows a device (e.g. set-top box) to be situated up to 1000ft (300m) from the controller (e.g. television).

Fully compliant with standard modulated IR and the latest IRDA, the extender will provide a transparent path for all protocols and data transfers.

Matrix
The units contain a high quality routing matrix for composite video and stereo audio. Gold RCA jacks sockets on the rear of the unit connect the input signals to the matrix. Color coded jacks are used for ease of identification. Both audio and video inputs are high impedance to allow for looping inputs. This enables multiple units to be cascaded together increasing the number of users to the system. Each model in the series has looping inputs giving a convenient method of upgrading the system on site. An integral on screen display (OSD) for each output keeps the user informed of channel identification and system configuration.

Signal Distribution
All signals are distributed balanced and driven differentially, this method provides for the best immunity to external noise and interference. Sending signals balanced also minimizes emissions, as any interference transmissions from the cable are cancelled out.

Pairs 1,2 and 3 of the CAT5 cable are used for video and stereo audio respectively. Pair 4 is used for the return Infrared signals from the user, which is combined with the power from the chassis and sent as a common mode signal.

Receiver unit
Each user requires a receiver unit complete with IR 'eye' and handset. There are currently 3 receiver models:

• Scart receiver and separate 'eye'
• Integral receiver
• Bulkhead mounted receiver

The Scart receiver consists of a small box with integral Scart plug, which connects directly to the television. The flying 'eye' is then placed on top of or to the side of the television so that it can pick up the IR commands from the handset when directed at the TV. Other receivers have the same specification but allow for differing installation requirements.

All that is required to view the channels is to connect a CAT5 cable to the receiver unit, the other end of which connects to an output on the chassis. No adjustments are necessary to receive the video and stereo audio as the unit provides an automatic compensation for any losses for up to 300m of cable. Power is provided through the cable eliminating the need for bulky plug-top supplies.

Handset On-Screen Menu
For ease of installation and monitoring the chassis provides an on-screen menu for each user. This feature is used to allocate names to each AV source and allow programming of all system options.

The SmartNet-V handset enables the user to switch between the various external sources. The system uses a unique IR protocol so conflicts with other devices should not occur. The handset has a multifunction feature allowing it to be programmed with other protocols. This allows the same handset to be used for multi-devices e.g. TV, VCR and STB etc.

Expansion
Multiple units can be cascaded together to form larger matrices. Looping inputs allow both the video and audio signals to be bussed to other units expanding the number of available users. The infrared control can also be cascaded by connecting the input and outputs between racks, thereby allowing all users to remotely control the source devices.

CHASSIS SPECIFICATIONS

Video
Bandwidth	15MHz
Input Signal Level	1Volt pk-pk into 75R
Output Impedance	100 Ohms
Input Impedance	100k Ohms
Connector	RCA jack socket
Format	PAL/NTSC/SECAM
Audio
Bandwidth	20KHz
Signal level	0dB
Output Impedance	100 Ohms
Input Impedance	10K Ohms
Input Connector	RCA jack socket
Looping Connector	Subminiature dB25 socket
Power
Voltage	90-230V
Connector	IEC
Fuse Rating	1A A/S
Frequency	50/60 Hz
IR Control
Type	Open collector to 12V
Multi-output connector	Subminiature dB37 socket
Multi-input connector	Subminiature dB37 plug
Cat 5 Signals
Pair 1	Video balanced 1 V pk-pk
Pair 2	Audio L balanced 0dB
Pair 3	Audio R balanced 0dB
Pair 4	12V DC power + IR balanced signals
Dimensions
Height	3U (133mm)
Width	19"
Depth	450 mm
Weight	10Kg

RECEIVER'S SPECIFICATIONS

Input Signals
Inputs	Connector	Signal Type	Impedance
User	RJ45	Balanced Video/IR/Audio	100R
DC Power Requirements	12 V DC@100mA	Power Source	Remote via UTP
Output Signals
Outputs	Connector	Signal Type	Impedance
User	Scart	Video
Audio 1
Audio 2	75R
50R
50R
Infrared	3.5mm jack	TTL	100R
Dimensions
	Height	Width	Depth
Receiver	65mm	65mm	28mm
IR 'eye'	40mm	40mm	20mm