Ocean Matrix OMX-4X4 User manual

OMX-4X4
4x4 Video & Stereo Audio Vertical
Interval Matrix Switcher
www.oceanmatrix.com
Thank you for purchasing this Ocean Matrix component. This unit is designed
to give you years of trouble free professional operation for your most
demanding applications. It is our goal to develop long term partnerships with
our customers through our commitment to exceed their expectations.
Instruction Manual
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4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
VIDEO
Inputs: Composite Video Signals terminated into 75Ω; Inputs can be looped, Internal switches for
termination,on BNC connectors
Outputs: 4 Composite video signals into 75Ω, BNC connectors
Video Performance: Measured with a 40 IRE 3.58MHz sine wave a linear ramp 0-100 IRE
30MHz unity gain bandwidth
Differential Gain: 0.01% Differential Phase: 0.05%
Tilt: < 0.5% S/N Ratio: > 75dB, 5.0MHz, Low pass
Response: DC -30MHz Baseband @ ±0.05dB DC Offset: 0V @ 1Vp-p into 75Ω
Adj. Crosstalk: -65dB tested @ 10MHz
AUDIO
Inputs: 4 Stereo inputs, Unbalanced, 150K bridging, 600Ωnominal
0.5Vp-p - 2.0Vp-p input signal, RCA connectors
Outputs: 4 Stereo outputs, Unbalanced, 600Ω, Unity gain set @ 1.2Vp-p, RCAs
Performance: Measured with 1KHz 1.2Vp-p sine wave
Frequency Response: 10-30KHz ±0.1dB
S/N Ratio: 85dB, at specified tested center frequency for response
Crosstalk: > 110dB isolation
SPECIFICATIONS
The OMX-4x4 Switchers are flawlessly designed 4 x 4 matrix routers for seamless routing between any one
of four inputs to any or all of the four outputs.
Since audio-follows-video, each switch selected controls
both video and audio. As a true matrix switcher, you may send any input signal to any output.
Vertical Interval Switching provides glitch free transitions between synchronized sources.
The 4x4 models are controlled from the front panel using “output” assignment switches with LED con-
firm.Additionally, a 9-Pin Serial Control Port Located on the rear panel is provided to interface your PC
with the switcher. Included Software is provided for switcher control from any standard PC.

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
BASIC OPERATIONS
POWER UP After unpacking the unit, plug in to 110 VAC power. The OMX-4X4 has no
power switch. The front panel LEDs will light immediately. After a second the
LEDs will go out. This indicates that POWER RESET has occurred and that the
microprocessor is operational.
CONNECTIONS Connect the composite video to input #1.THIS INPUT MUST BE USED AT ALL
TIMES. Failure to use video input #1 will disable the switcher. Connect other
video sources to inputs 2-4 as desired. The OMX-4X4 comes factory set for
video 75Ωtermination. If the OMX-4X4 is to be bridged with another device or
another OMX-4X4, then the internal termination switches must be set to “off” as
required. Open the top panel and set the 4 position DIP Switch located near
the front, to the proper termination. OFF is open and ON is terminated. There
is no need for audio termination.
Connect the outputs using the proper cables to the various destinations in your
system. All output cables must be properly terminated if the devices being fed
these signals provide a terminate option.
OPERATION Once the unit is properly connected, simply select the input required to be
switched for each output. The front panel switches are labeled “OUTPUT” on
the top of the switch area and “INPUT” below the switches. To select input #1
to be fed to output #2: Simply push the #1 button for output #2 switch buss.
RS-232 RS-232 operation requires that you first write a program that outputs HEX code
via the COM port of your PC. Review the section: SERIAL PROTOCOL in this
manual for additional programming information.
You can control the OMX-4X4 with the PC software control provided with this
unit. You can also order a more sophisticated software.
VERSION 1.0 is provided with this manual. Review the installation instructions
later in this manual.
NOTE: The OMX-4X4 has been designed for simple use and reliable performance. The screening and layout
work was carefully considered to provide an easy understanding of the product and its utilization. If
you require any assistance in either application or operations, please call us at 845-247-0680 between
10 AM - 4 PM EST. We are happy to serve you with any assistance and tech support.

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
OMX-4X4 SWITCHER SERIAL PROTOCOL SPECIFICATIONS
1.0 PROTOCOL DEFINITION
The serial protocol used by the OMX-4X4 switcher is an asynchronous byte oriented protocol
at 9600 bits per second, no parity, 1 stop: commonly referred to as 9600, N, 8, 1.
There is no protocol encapsulation (e.g., HDLC,SLIP, etc.). Each valid code sent signifies an
operation of the switcher. The switcher contains an 8 byte receive buffer therefore a program-
mer should be careful no to overflow the buffer, causing received bytes to be dropped. As a
guideline, the host program (MAC or PC) should delay 5 milliseconds between send codes.
Table 1 shows the codes for connecting outputs to inputs for basic switching. Note that audio
follows video.
TABLE 1.0: BASIC SWITCHING CODES
HEX VALUE DESCRIPTION
0x80
0x90
0xA0
0xB0
0x81
0x91
0xA1
0xB1
0x82
0x92
0xA2
0xB2
0x83
0x93
0xA3
0xB3
Connect output 1 to input 1
Connect output 2 to input 1
Connect output 3 to input 1
Connect output 4 to input 1
Connect output 1 to input 2
Connect output 2 to input 2
Connect output 3 to input 2
Connect output 4 to input 2
Connect output 1 to input 3
Connect output 2 to input 3
Connect output 3 to input 3
Connect output 4 to input 3
Connect output 1 to input 4
Connect output 2 to input 4
Connect output 3 to input 4
Connect output 4 to input 4

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
OMX-4X4 SWITCHER SERIAL PROTOCOL SPECIFICATIONS
2.0 GENERAL OVERVIEW
Note that on power up the unit has all outputs disabled. Simply connecting an output to an
input does not produce the selected input at the selected output. The output must be enabled
using the codes shown below in Table 2.0.
EXAMPLE 2.1: To produce input 3 video/audio at output 1 the following code must be sent by
the host:
0x82 <5mS delay> 0x8C
The value 0x82 tells the switcher to connect output 1 to input 3
The value 0x8C tells the switcher to enable output 1
2.2 OUTPUT CONTROL
Outputs can be enabled or disabled. If the output is disabled, the switched connection
remains intact. Thus, re-enabling the output restores the previously connected input.
For example, let’s assume the steps in example 2.1 have occurred and input 3 is present at
output 1. If the output is then disabled by sending code 0x8B and then a code 0x8C is sent,
input 3 is present at output 1.
Ganged control of all outputs is possible using the DISABLE/ENABLE codes 0x8D and 0x8E
TABLE 2.0: SWITCHER CONTROL CODES
HEX VALUE DESCRIPTION
0x8B
0x9B
0xAB
0xBB
0x8C
0x9C
0xAC
0xBC
0x8D
0x8E
Disable output 1
Disable output 2
Disable output 3
Disable output 4
Enable output 1
Enable output 2
Enable output 3
Enable output 4
Disable all outputs
Enable all outputs

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
OMX-4X4 SERIAL CONTROL SOFTWARE VERSION 1.0
The OMX-4X4 is provided with a DOS bases RS232 control software. This software is provided on a
3.5” 1.44Mb floppy disc. This software allows the operator to run all switcher functions from a standard
IBM compatible PC. The software can be run from the floppy disc or installed on a PC hard drive.
Additionally, the software has control features not available via manual control.
TEST: This mode will instantly connect input #1 to all outputs. It can be used to feed Colorbars to all
outputs for test purposes.
MUTE: This feature allows all outputs to be disabled or “muted” at once. Individual output channels
may be muted as well.
Install the floppy disc in drive A of your PC. At the A: Prompt type: Install and hit return.
TypeY to answerYES for hardware installation. The software will create a sub-directory called 4X4232
on your hard drive and the copy the file AV.EXE into that directory.
From the directory 4X4232 type: AV
The operations menu will appear as shown below.
Select Output (1-4),T forTest, M toToggle Mute or Q to Quit.
*************Current Switch Configuration***************
INSTALLATION
RUNNING PROGRAM
OUTPUT CONNECTED OUTPUT
10
20
30
40
The top menu line offers these options: SELECT OUTPUT, TEST, MUTE & QUIT.
To enter the TEST mode type T and press enter. You will note that all the connected outputs change
to “1”. This indicates that all outputs are now connected to input #1. Follow the screen instructions for
exiting the TEST mode.
The MUTE feature is a Toggle. This means it may turned on & off by pressing the ENTER key. Type
M to engage this feature. You will note “MUTED” appears before each output line when the feature is
engaged. To toggle back & forth, simply hit ENTER & “MUTED” goes on & off accordingly.

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
RUNNING PROGRAM (cont...)
SERIAL CABLE
MATRIX ROUTING is accomplished by first entering the output bank required. The command line
will ask for a selection of an input for that output. Enter the input you require and the next line will
ask for an enable Y/N. Enter your choice and the route is executed. At the same time the CON-
NECTED OUTPUT register will show the connection. Repeat this operation for all four outputs.
At the command line, you can also enter MUTE mode. This will mute only the output selected. You
may also QUIT the program from any of the prompt lines. Exiting the program leaves the switcher in
the last controlled mode. Pressing the front panel switches or enabling the RS232 port again will
change the settings.
PORT ASSIGNMENTS: The software is configured to boot on COM1. However, it can be assigned
to andy COM PORT 1-4. To change a port assignment: At C:\4x4232 type AV [-p] where p is the
new port number. Example: AV [-2] will boot the program on COM2.
To connect your PC to the OMX-4X4, a straight 9-Pin Female to 9-Pin Female cable can be used. The
pinout is direct pin-to-pin. The cable can be up to 100’ long. Ribbon cables can be used for cable
lengths up to 30 feet. It is recommended that shielded cable is used for longer length runs.
CABLE PINOUT: PIN# FUNCTION
1NC
2TX
3RX
4 DTR
5 GND
6 DSR
7NC
8 DSR LOOP
9NC

4x4 Video/Stereo Audio
Vertical Interval Matrix Switcher
OMX-4X4
812 Kings Highway • Saugerties, NY 12477
A Division of Tower Products, Inc.
1. To prevent fire or shock hazard, do not expose this equipment to the environment of Humidity
and/or dust. Do not use this equipment in an unprotected outdoor installation or any area classi-
fied as a wet area.
2. The operating temperature of this product must be kept between -40°C and +95°C. Direct sun-
light or an intense source of heat, direct or ambient, must not be introduced to the product
either by induction or contact.
3. Always keep the product on a stable and secure base or enclosure. Do not drop the product or
subject it to sudden heavy impact.
4. Provide adequate ventilation so that thermal characteristics do not cause an increase in product
temperature to resulting in overheating.
5. Do not clean the unit by using electrically conductive or corrosive chemicals. Always be certain
to unplug the unit from AC wall power before any major cleaning. Use a damp cloth only for
cleaning.
6. Do not subject the product to electrical mains power over voltage:The product must be used at
the rated supply voltages indicated on the product rear panel only.
7. Do not plug the product into an overloaded electrical outlet. This may result in fire or electrical
shock.
8. Object Ingress and Liquid Entry: Never insert or push sharp metal objects into the product or use
such devices for an attempt at opening or servicing the product. Servicing should be referred to
a trained and qualified technician only. Do not allow liquid of any type to enter the unit. Do not
allow the unit to be submersed in water as this may cause a shock hazard.
9. A trained qualified technician should perform all servicing of the unit. There are no serviceable
components within the unit for user access.
Safety Precautions