Video Products Computer Hardware SE HDMI 8 LC User Manual

8-in 1-out  
HDMI Switcher  
Operation Manual  
CHDMI-81  
 
1. HDMI output: Connect the HDMI output to the HDMI input of  
your display using HDMI cable.  
2. HDMI inputs: Connect your various HDMI sources to each of the  
HDMI input of the unit using HDMI cables.  
3. Power: Plug the supplied 5VDC power supply into the unit.  
4. RS232: 9-pin D-sub female connector for connecting to your other control  
console for remote control.  
Remote Control  
1. Power:  
Press the button to turn on/off the unit.  
2. Direct input selector:  
1
2
Press numerical number button to select your desired  
input source.  
3
3. Void buttons (No function). If the button number is  
greater than the total input number of the unit then  
the button is of no function.  
CR-22  
Specifications  
* Frequency bandwidth: 1.65Gbps(single link)  
* Inputs: 8 x HDMI female ports (Type A connector)  
* Output: 1 x HDMI female port (single link)  
* 5VDC universal power supply  
* Weight: 0.85kgs  
* Dimension: 280(W) x104(L) x 44(H)mm  
CHDMI-81 RS-232 Remote Control Protocol  
* The connection between CHDMI-81 and remote controller with RS-232 modem cable.  
Pins definition of modem cable  
CHDMI-81  
Definition  
Remote Controller  
PIN Definition  
PIN  
1
2
3
4
5
6
7
8
NC  
T xD  
R x D  
NC  
GND  
NC  
NC  
NC  
NC  
1
2
3
4
5
6
7
8
9
NC  
R xD  
T x D  
NC  
GND  
NC  
NC  
NC  
NC  
9
* RS-232 transmission format:  
Baud Rate : 9600 bps  
Data Bit : 8 Bits  
Parity: None  
Stop Bit: 1 bi  
 
* Command :  
* A command is combined with a word plus a digit  
* This combination commnad code has to be separated by ASCII character SPACE  
* The command will be executed after ASCII character "CR" input  
* After ASCII character "CR" is entered, The unit will reply "OK" if the command is legal  
* If the command is illegal, The unit will reply "NG"  
Command Code  
Comment  
PORT 1 ON  
"PORT"+ SPACE+"1"+CR  
"PORT"+ SPACE+"2"+CR  
"PORT"+ SPACE+"3"+CR  
"PORT"+ SPACE+"4"+CR  
"PORT"+ SPACE+"5"+CR  
"PORT"+ SPACE+"6"+CR  
"PORT"+ SPACE+"7"+CR  
"PORT"+ SPACE+"8"+CR  
"PORT"+ SPACE+"?"+CR  
"SIGNAL"+SPACE+"1"+CR  
"SIGNAL"+SPACE+"0"+CR  
"SIGNAL"+SPACE+"?"+CR  
"POWER"+ SPACE+"1"+CR  
"POWER"+ SPACE+"0"+CR  
"POWER"+ SPACE+"?"+CR  
PORT 2 ON  
PORT 3 ON  
PORT 4 ON  
PORT 5 ON  
PORT 6 ON  
PORT 7 ON  
PORT 8 ON  
QUERY PORT STATUS  
ENABLE SIGNAL ENHANCE  
DISABLE SIGNAL ENHANCE  
QUERY SIGNAL STATUS  
POWER ON  
POWER OFF  
QUERY POWER STATUS  
Connection and Installation  
......  
DVD 2  
STB  
DVD 1  
DVD 3  
LCD TV  
 

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