Knox Video Media Flex User Manual
MediaFlex Series
Modular Audio/Video Distribution System
Operation and Technical Manual
KNOX 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 Manual
May, 2005
KNOX VIDEO
TECHNOLOGIES
8547 Grovemont Circle
Gaithersburg, MD 20877
TEL 301•840•5805
FAX 301•840•2946
www.knoxvideo.com
Warnings, Cautions and Others
Mises en garde, precautions et indications diverses
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point, within an equilateral triangle, is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO
NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION
To reduce the risk of electrical shocks, fire, etc.:
1. Do not remove screws, covers or cabinet.
2. Do not expose this appliance to rain or moisture.
ATTENTION
Afin d’éviter tout risque d’électrocution, d’incendie, etc.:
1. Ne pas enlever es vis ni es panneaux et ne pas ouvrir le coff ret de
l’appareil.
2. Ne pas exposer l’appareil a la pluie ni a l’humidité.
Caution — STANDBY/ON switch!
Disconnect the mains plug to shut the power off completely. The STANDBY/ON
switch in any position does not disconnect the mains line. The power cannot be
remote controlled.
Attention — Commutateur STANDBY/ON!
Déconnecter la fiche de secteur pour couper complètement le courant. Le
commutateur STANDBY/ON ne coupe jamais complètement la ligne de secteur,
quelle que soit sa position. Le courant ne peut être télécommandé.
For U.S.A.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
For Canada/pour le Canada
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO
WIDE SLOT, FULLY INSERT.
ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA
PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET
POUSSER JUSQUAU FOND.
For Canada/pour le Canada
THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS B LIMITS FOR RADIO
NOISE EMISSIONS FROM DIGITAL APPARATUS AS SET OUT IN THE INTERFERENCECAUSING EQUIPMENT STANDARD ENTITLED “DIGITAL APPARATUS,” ICES-003
OF THE DEPARTMENT OF COMMUNICATIONS.
CETAPPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITS RADIOELECTRIQUES APPLICABLES AUX APPAREILS NUMERIQUES DE CLASSE B PRESCRITES
DANS LA NORME SUR LE MATERIEL BROUILLEUR: “APPAREILS NUMERIQUES,”
NMB-003 EDICTEE PAR LE MINISTRE DES COMMUNICATIONS.
CAUTION:
• Do not block the ventilation openings or holes.
(If the ventilation openings or holes are blocked by a newspaper or cloth, etc., the heat may not be
able to get out.)
• Do not place any naked flame sources, such as lighted candles, on the apparatus.
• When discarding batteries, environmental problems must be considered and local rules or laws
governing the disposal of these batteries must be followed strictly.
• Do not use this apparatus in a bathroom or places with water. Also do not place any containers filled
with water or liquids (such as cosmetics or medicines, flower vases, potted plants, cups, etc.) on top
of this apparatus.
ATTENTION:
• Ne bloquez pas es orifices ou es trous de ventilation.
(Si es orifices ou es trous de ventilation sont bloqués par un journal un tissu, etc., la chaleur peut ne
pas être évacuée correctement de l’appareil)
• Ne placez aucune source de flamme nue, telle qu’une bougie, sur l’appareil.
• Lors de la mise au rebut des piles, veuillez prendre en considération es problèmes de l’environnement
et suivre strictement les règles et les lois locales sur la mise au rebut des piles.
• N’utilisez pas cet appareil dans une salle de bain ou un autre endroit avec de l’eau.
• Ne placez aucune récipient contenant de l’ear (tel que des cosmétiques ou des médicaments, un vase de
fleurs, un pot de fleurs, une tasse, uec.) sur cet appareil.
NOTES
KNOX VIDEO
MediaFlex Series Audio/Video Distribution System
TABLE OF CONTENTS
Section 1. GENERAL INFORMATION
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Detail Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Section 2. INSTALLATION
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Video Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.6 (Optional) VGA Connections . . . . . . . . . . . . . . . . . . . . . . . . 5
2.7 RS232 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.8 Using the Knox MediaFlex Series Setup Program . . . . . . . . 6
Section 3. OPERATION
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Control via 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 How to Store and Recall Crosspoint Patterns . . . . . . 14
3.4.6 Controlling the Sound . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4.7 Additional RS232 Commands . . . . . . . . . . . . . . . . . . . 17
3.4.8 Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5 Control via the Contact Closures . . . . . . . . . . . . . . . . . . . . . 20
3.6 Using the Doorbell Option . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Section 4. MAINTENANCE
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Switch/Jumper Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Clearing the Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Page i
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.
KNOX VIDEO
MediaFlex Series Audio/Video Distribution System
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 connects any one of the input SOURCES (buffered electrically) to one or more of the
sixteen ZONES.
1.2 TECHNICAL DESCRIPTION
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
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
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