Meyertech ZoneVu 328 Series Technické informace stáhnout pdf (Strana 52)

A&E specification Series 3 Page 6 of 12

The information in this specification is believed to be accurate and reliable. However, no responsibility

or liability is assumed by Meyertech Limited for its use, or for any infringement of patents or other

rights of third parties which may result from its use. No license is granted by implication or otherwise

under any patent or other rights of Meyertech. Meyertech Limited reserve the right to change

specifications without notice.

3.3.Video Matrix Architecture

3.3.1. A separate video matrix control module shall be employed to manage

communications with the video routing and video output modules.

3.3.2. All modules employed in the video matrix shall communicate using serial data. Parallel data busses

will not be accepted.

3.3.3. The design of the video matrix shall be 100% non-blocking. I.E. any input can be routed to any input

or any number of inputs without limitation.

3.3.4. The design of the video matrix system shall employ separate PSU modules to power the Video

Routing and Video Output modules.

3.3.5. Each video matrix input shall be buffered prior to the crosspoint matrix circuitry.

3.3.6. To minimise system response times E.G. X-point switch, and to eliminate single point failure each

video routing module will employ a dedicated 16-bit CPU.

3.3.7. It shall be possible to populate the Video Output Module with either straight-buffered outputs or

buffered outputs with text insertion (OSD) or, a combination of both in the same module.

3.3.8. All video inputs and outputs of the video matrix shall be DC coupled to eliminate the undesirable

effects from other equipment / systems connected to it.

3.4.Diagnostics

3.4.1. All video matrix modules shall incorporate diagnostic LED’s on the front panels of the modules

3.4.2. The following system diagnostic LED’s shall be provided.

3.4.3. Communication network fault LED to indicate when communications with the system matrix controller

has been lost.

3.4.4. Communication network termination LED to indicate which matrix module(s) are terminated with

respect to their network communications port.

3.4.5. Communication network data received LED to indicate when data has been correctly received from

the video matrix controller.

3.4.6. Communication network data transmitted LED to indicate when data has been correctly transmitted to

the video matrix controller.

3.4.7. Communication network data received LED to indicate when data has been correctly received from

the video matrix controller.

3.4.8. Video Loss Alarm LED to indicate when a video input has lost its video signal.

3.4.9. X-point switch confirmation LED’s to indicate when the video matrix has executed a x-point switch.

3.4.10. Power LED’s to indicate a module is receiving power.

3.5.Video Matrix I/O Connections

3.5.1. All inputs and outputs to and from the video matrix shall be via the rear panel.

3.5.2. Video Routing Module

The video routing module shall have two hundred and fifty-six industry (256) standard BNC

connectors. One hundred and twenty-eight (128) BNC connectors for video inputs to connect the

video source signal and one hundred and twenty-eight (128) loop-through BNC connectors for

connection to further Video Routing Modules or other equipment. Miniature BNC, ribbon cables or any

other form of connection to the video matrix will not be permitted.

Each video input shall be Hi-Z impedance (high impedance).

75-ohm termination of each video input shall be via a standard 75-ohm termination plug. Links to

terminate and de-terminate video inputs shall not be permitted.

Auto-termination of video inputs shall not be permitted.

Dual RJ45

connectors located on the back panel shall be provided to loop through the data-comms

from on module to the next using standard RJ45 ‘patch-leads’.

A single Power Connector shall be used to provide power to the Video Routing Module.

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