HDMI 4x4 Matrix Switcher User Guide Model CM-MT4420-HD 2014-02-382 • Rev 02
Copyright © 21MAR14 Clare Controls, Inc. All rights reserved. This document may not be copied in whole or in part or otherwise reproduced without prior written consent from Clare Controls, Inc., except where specifically permitted under US and international copyright law. Trademarks and patents HDMI 4x4 Matrix Switcher, Model CM-MT4420-HD name is a trademark of Clare Controls, Inc.
Content Limitation of liability...ii Introduction...1 Features...1 Package contents...1 Product appearance...2 Front panel...2 Rear panel...3 System connection...3 Usage precautions...3 Connecting the RS232 communication port...4 Connecting with the computer...5 System diagram...6 Connection procedure...6 EDID management...7 EDID automatic handshake...7 System applications...8 System operations...8 IR controls...9 Using the IR remote...9 Communication protocol and command codes...10 Specifications...
Limitation of liability To the maximum extent permitted by applicable law, in no event will Clare Controls, Inc. be liable for any lost profits or business opportunities, loss of use, business interruption, loss of data, or any other indirect, special, incidental, or consequential damages under any theory of liability, whether based in contract, tort, negligence, product liability, or otherwise.
Introduction The HDMI 4x4 is a matrix switcher with four, female HDMI inputs and four, female HDMI outputs. It enables cross-point switching from any input to any output, or all outputs, and supports 3D, 4K x 2K, and 1080P. It can be used in both residential and commercial applications to allow sharing of HD source content to multiple displays. Features HDMI 1.4a, supports 3D. HDTV compatible with high definition transmission resolution up to 1920 x 1200 at 60 Hz, and supports 1080P.
Product appearance Front panel Figure 1: Front panel of the HDMI 4x4 switcher (1) Firmware Micro USB port for updating firmware. (2) Power indicator Power 'on' indicator light. (3) IR receiver IR receive window. (4) LCD indicator Shows real-time system status. (5) INPUTS Normal mode: Input buttons range from 1 to 4. Inquire mode: Press and hold “SELECT” for 3 seconds to enter this mode to check connection status, switching status, HDCP and output resolution.
Rear panel Figure 2: Rear panel of the HDMI 4x4 switcher (1) GROUND Connection point for equipment grounding. (2) INPUTS Four HDMI input ports. Connect them to the HDMI ports on the signal sources. (3) OUTPUTS Four HDMI output ports. Connect them to the HDMI ports on the output source devices. (4) IR EYE A .25 in. mono jack for rear connection of IR control. (5) RS232 The serial port for unit control, 9-pin female connector. Connects with a control device, such as a PC.
Connecting the RS232 communication port You can use the front-mounted buttons to control the switcher. However, you can also perform control functions via a control system (Clare Controls, Crestron, Control4, etc.) using its RS232 communication port. The RS232 communication port is a female, 9-pin D connector (DB9). As shown in the table below, only pins 2, 3, and 5 are used. The standard functions of Tx, Rx, and Gnd apply. Table 1: RS232 connection definitions No.
Connecting with the computer The switcher can be controlled via a computer COM port. However, another scenario is to use a third-party control system such, as Clare Controls, Crestron, or Control4. The RS232 protocols required for these systems are listed in the section “Communication protocol and command codes” on page 10. Use a straight-thru RS232 cable (non-null modem) to connection to these systems, unless otherwise stated by the control system’s manufacturer.
System diagram The 4x4 switcher allows up to four HDMI sources (Blu-ray DVD, tablet, digital camcorder, PC, etc.) to be routed to any or all of the four HDMI destinations (HDTV, projector, AV receiver, etc.). The diagram below shows an example of possible connections. Figure 4: System diagram Connection procedure 1. Connect the HDMI sources (e.g., DVD) to the HDMI “INPUTS” on the SWITCHER with the HDMI cables. 2. Connect the HDMI displays to the HDMI “OUTPUTS” on the SWITCHER with HDMI cables. 3.
EDID management The switcher has a built-in EDID management database. The EDID management system can handle the handshake automatically, manually, or it can be set to the factory default. EDID automatic handshake The EDID data management can communicate with the sources and displays automatically. When the sources and displays are connected to the switcher, they share the EDID/DCC information with the switcher. The communication solution is shown below.
System applications The switcher can be used in both residential and commercial applications when centrally locating the source equipment and displaying HD video in remote locations. The switcher allows the sharing of source content across multiple displays. System operations A description of the front panel operations is covered in “Front panel” on page 2. Here we give a brief introduction to the system inquiry operations. Press the Select button for three seconds to enter into the System Inquire menu.
IR controls Using the IR remote Figure 6: IR remote Note: A built-in IR or extended IR receiver connected to an IR Eye can control the device with this remote control.
Communication protocol and command codes Through the RS232 communication port, you can control a device with a baud rate of 2400, 4800, 9600, 19200, 38400, 57600 or 115200. Communication protocol: RS232 communication protocol Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none Table 3: RS232 command types and codes Command types Command codes Functions System command /*Type; Inquire the models information. /%Lock; Lock the front panel buttons on the matrix.
Status. Inquire all outputs statues one by one. Save[Y]. Save the present operation to the preset command [Y], ranges from 0 to 9. Recall[Y]. Recall the preset command [Y]. Clear[Y]. Clear the preset command [Y]. PWON. Work in normal mode. PWOFF. Enter into standby mode and cut off the power supply. STANDBY. Enter into standby mode. /%[Y]/[X]:[Z]. HDCP management command. [Y] is for input (value: I) or output (value: O). [X] is the number of one port, if the value of X is ALL (all ports).
UpgradeIntEDID[x]. Select one type of EDID data and upgrade built-in EDID data. Supports 4 types of EDID data: 1. 1080P, 2D, PCM2.0 2. 1080P, 2D, 5.1 (audio) 3. 1080P, 3D, PCM2.0 4. 1080P, 3D, 5.1 (audio) [x] = 1, 2, 3 or 4 When the switcher gets the command, it will show a message to send EDID file (.bin file). Operations will be canceled after 10 seconds. EDID/[x]/[y]. Set the built-in EDID data of input port [x] to type [y]. The value of [y] is 1, 2, 3, and 4.
Specifications Video Input Video Output Input HDMI Output HDMI Input connector Female HDMI Output connector Female HDMI Input level T.M.D.S. 2.9 V / 3.3 V Output level T.M.D.S. 2.9 V / 3.3 V Input impedance 100Ω (differential) Output impedance 100Ω (differential) Gain 0 dB Bandwidth 6.75 Gbit/s Video signal HDMI Maximum pixel clock 225 MHz Resolution range Up to 1920 x 1200 or 1080P at 60 Hz Switching speed 200 ns (max.
Panel drawing Figure 7: Panel drawing of the HDMI 4x4 switcher 14 HDMI 4x4 Matrix Switcher User Guide
Troubleshooting and maintenance When there is color loss or no video signal output, ensure that the cables are well connected, or not broken. When EDID management does not work normally, the HDMI cable may be broken at the output end. When switching, there is a blank screen on the display, the display may not support the resolution of the video source. Switch again or manage the EDID data manually to make the resolution of the video source automatically comply with the output resolution.
Safety operation guide To guarantee the reliable operation of the equipment and safety of the staff, please follow the procedures listed below. The system must be grounded properly. Do not use two blades plugs. Ensure the supply voltage is in the correct range of 100~240 V and from 50~60 Hz. Do not locate the device in a place that is abnormally hot or cold or does not have proper temperature control and ventilation. The device generates heat when running.
After-sales service If there appears to be problems when running the device, refer to the “Troubleshooting and maintenance” section in this manual. Return shipping costs are not covered by this warranty. You can contact Customer Support at http://support.clarecontrols.com. Please be ready to provide the following information. Product model number, version and serial number. Detailed description of the trouble issues. Description of all connections and third-party equipment being used.
