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SECTION 1. GENERAL INFORMATION

1.1   INTRODUCTION

The KNOX MEDIAFLEX SERIES AUDIO/VIDEO DISTRIBUTION SYSTEM

are modular devices which accept up to sixteen composite, Y/C, RGBHV, or analog
HDTV video sources (up to 1080I or 720P), sixteen unbalanced or balanced stereo
audio sources, and (optionally) eight sources of VGA signal. The MediaFlex con-
nects any one of the input SOURCES (buffered electrically) to one or more of the
sixteen ZONES.

1.2   TECHNICAL DESCRIPTION

The MediaFlex Series uses a single chip microprocessor with battery-backed

memory to drive a set of monolithic digital latching crosspoint decoders.

Cross-point information is collected by the microprocessor from the front

panel pushbutton switches, the infrared remote control, or from the RS232 input
on the rear panel, and distributed to the crosspoint decoders. Audio or video may
be routed together or separately.

1.3   DETAIL SPECIFICATIONS

Video Channels:

Levels:

1v NTSC or Y/C (S-VHS or Hi-8) or analog HDTV
(YUV or RGB)

Frequency Response:

DC to 30MHz
@ 1v <3dB down at 30MHz

Input Impedance:

75 ohms

Output Impedance:

75 ohms

Crosstalk:

less than -70dB@5MHz

Audio Channels:

Levels:

Unbalanced audio:

2v p-p unbalanced audio

Balanced audio:

up 16dBM

Frequency Response:

20Hz through 30KHz

KNOX VIDEO

MediaFlex Series Audio/Video Distribution System

Page 1

Limited Warranty

Unless otherwise stated in the product specific documentation received

with this product, Knox Video Technologies provides a five-year limited
warranty for this product. The above warranty period shall begin on the
date of shipment by Knox to purchaser or, if purchaser is an authorized
reseller of such Knox products, from the date of shipment by the reseller to
the reseller’s original customer.

The warranty set forth above shall not apply to failure or deficiency

which has been caused by misuse, abnormal or unusually heavy use, neglect,
alteration, improper installation, unauthorized repair or modification, improper
testing, accidental or causes external to the product such as but not limited
to excessive heat or humidity, power failure, or improper installation.

IF SERVICE IS REQUIRED:

If the product does not perform as warranted, call Knox Video Technologies
at 301-840-5805 for available service options.

If it is necessary to return an item to Knox, the defective product should be
securely packaged in original boxes and insured for shipment. Owner agrees
to insure and accept all liability for loss of or damage to this product.

YOU MUST CALL TECHNICAL SUPPORT AT 301-840-5805 FOR
A RETURN AUTHORIZATION NUMBER (RA) AND “SHIP-TO”
ADDRESS BEFORE SHIPPING ANY PRODUCT TO KNOX.

This warranty gives you specific legal rights, and you may also have other
rights, which vary from state to state.

Knox Video Technologies

8547 Grovemont Circle

Gaithersburg, MD  20877

301-840-5805 / 301-840-2946 Fax

www.knoxvideo.com

Summary of Contents for MediaFlex Series

Page 1: ...VIDEO TECHNOLOGIES 8547 Grovemont Circle Gaithersburg MD 20877 TEL 301 840 5805 FAX 301 840 2946 www knoxvideo com MediaFlex Series Modular Audio Video Distribution System Operation and Technical Man...

Page 2: ...EO TECHNOLOGIES 8547 Grovemont Circle Gaithersburg MD 20877 TEL 301 840 5805 FAX 301 840 2946 www knoxvideo com May 2005 Operation and Technical Manual MediaFlex Series Modular Audio Video Distributio...

Page 3: ...mpanying the appliance WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THISAPPLIANCE TO RAIN OR MOISTURE CAUTION To reduce the risk of electrical shocks fire etc 1 Do not remove scr...

Page 4: ...RFERENCE CAUSING EQUIPMENT STANDARD ENTITLED DIGITAL APPARATUS ICES 003 OF THE DEPARTMENT OF COMMUNICATIONS CETAPPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITS RADIOELEC TRIQUES APPLICABLES AUX APPAR...

Page 5: ...the Front Panel Switches 7 3 4 Control via the RS232 Port 11 3 4 1 Using an RS232 Terminal Device 11 3 4 2 Routing Audio and Video 12 3 4 3 Using the Salvo Mode 13 3 4 4 Using the Queue Mode 13 3 4 5...

Page 6: ...nty Unless otherwise stated in the product specific documentation received with this product Knox Video Technologies provides a five year limited warranty for this product The above warranty period sh...

Page 7: ...at 1 amp The CPU on the front panel controller board has a battery backed up memory for the crosspoint pattern storage and other non volatile functions It is important to check the battery annually a...

Page 8: ...HALL BEEASILYACCESSIBLE THERESHALLBENOSWITCHESOR DISCONNECTDEVICESINTHEEARTHCONDUCTOR Page 3 Page 22 KNOX VIDEO MediaFlex Series Audio Video Distribution System KNOX VIDEO MediaFlex Series Audio Video...

Page 9: ...are high impedance 15K Note an unbalanced source may be connected to a balanced input by connecting the signal lead of the audio source to the input and connecting the shield to both the center and in...

Page 10: ...Flex Series provides for 8 regular contact closures and one optional Doorbell contact closure accessible from the rear panel DB25 connector Allowable inputs include mechanical switches relays TTL or C...

Page 11: ...give them more meaningful names push 2 ENTER and select the zone name to be changed Note the default names remain available as an alternate set of names Assigning Names to Sources Sources are given de...

Page 12: ...e LED in the lower center of the front panel will be lit and the selected ZONE will appear in the left display window If Zone Lock is OFF the LED will be dark To turn Zone Lock on push the FUNCTION bu...

Page 13: ...urce push the FUNCTION key then push the 16 button VOLUME and MUTE buttons see also ROTARY KNOB below Note the ZONE LOCK light if it is on it means a zone has been pre selected usually the local zone...

Page 14: ...e crosspoint connections For a readout of the current map of crosspoint connections push the DIS PLAY button and rotate the rotary knob until the ZONE you are interested in appears in the LCD window t...

Page 15: ...utput number from 01 16 or for trim an input number from 01 16 To control volume send a command of the form vxx vxx or vxxyy where xx is an output number and yy is a number from 00 63 04 is the defaul...

Page 16: ...e commands which start with the dollar sign Certain other commands are used only for setup The MediaFlex Series will echo all ASCII characters and acknowledge completed valid letter commands with the...

Page 17: ...and where y specifies the source of audio 00 16 use 0 s for audio OFF 3 4 3 USINGTHESALVOMODE It is possible to send the same input to a number of sequential outputs by a single eight byte command of...

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