8-in 1-out
HDMI Switcher
Operation Manual
CHDMI-81
Comment
QUERY POWER STATUS
PORT 4 ON
ENABLE SIGNAL ENHANCE
POWER ON
POWER OFF
Comment
QUERY POWER STATUS
PORT 4 ON
ENABLE SIGNAL ENHANCE
POWER ON
POWER OFF
Introduction
Operation Controls and Functions
Rear Panel
1 4
2
3
INPUT 1INPUT 2INPUT 3INPUT 4OUTPUT
RS-232
DC 5V
CHDMI-81 is a high performance HDMI switcher
with remote control. It allows your various HDMI sources to
share one HDTV display.
Simply pressing one button to select your desired HDMI source
for display on the HDTV.
Features
* HDMI 1.2, HDCP 1.1 and DVI 1.0 compliant.
* Signal Enhancement feature allows you to improve signal quality
after long distance transmission.
* LED indicators.
* Ideal for home theater integration.
* Supports high resolution input:
PC: VGA, SVGA, XGA, SXGA, and UXGA (1600 x 1200)&
HDTV: 480i, 576i, 480p, 576p, 720p, 1080i, and 1080p
* Remote control.
* Easy to install and simple to operate.
Operation Controls and Functions
Front Panel
HD
8x1
Switcher
INPUT 5 INPUT 6 INPUT 7 INPUT 8
65
INPUT3 421
87
SIGNAL
ENHANCE
POWER
1
2
3 54
1. Remote control sensor.
2. HDMI inputs: Connect your various HDMI sources to each of the
HDMI input of the unit using HDMI cables.
3. Input select/Indicators: Press the " INPUT" button repeatedly to switch to your
desired input source and the LED will illuminate to indicate which
input source is being selected.
4. Signal Enhancement/Indicator: Press the " Signal Enhance" button to turn
on this feature to improve signal quality after long distance transmission.
Press again to turn off. The LED will illuminate when the signal is enhanced.
5. Power LED Indicator: The LED will illuminate when the power is connected.
Comment
QUERY POWER STATUS
PORT 4 ON
ENABLE SIGNAL ENHANCE
POWER ON
POWER OFF
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.
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
CR-22
1
3
2
Remote Control
1. Power:
Press the button to turn on/off the unit.
2. Direct input selector:
Press numerical number button to select your desired
input source.
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.
CHDMI-81 RS-232 Remote Control Protocol
* The connection between CHDMI-81 and remote controller with
RS-232 modem cable.
CHDMI-81
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
T xD
R x D
NC
GND
NC
NC
NC
NC
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
R xD
T x D
NC
GND
NC
NC
NC
NC
Remote Controller
Pins definition of modem cable
* RS-232 transmission format:
Baud Rate : 9600 bps
Data Bit : 8 Bits
Parity: None
Stop Bit: 1 bi
Connection and Installation
LCD TV
DVD 3
DVD 1
DVD 2
STB
......
Command Code
"PORT"+ SPACE+"1"+CR
PORT 1 ON
"PORT"+ SPACE+"2"+CR
PORT 2 ON
"PORT"+ SPACE+"3"+CR
PORT 3 ON
"PORT"+ SPACE+"4"+CR
"PORT"+ SPACE+"5"+CR
PORT 5 ON
"PORT"+ SPACE+"6"+CR
PORT 6 ON
"PORT"+ SPACE+"7"+CR
PORT 7 ON
"PORT"+ SPACE+"8"+CR
PORT 8 ON
"PORT"+ SPACE+"?"+CR
QUERY PORT STATUS
"SIGNAL"+SPACE+"1"+CR
"SIGNAL"+SPACE+"0"+CR
DISABLE SIGNAL ENHANCE
"SIGNAL"+SPACE+"?"+CR
QUERY SIGNAL STATUS
"POWER"+ SPACE+"1"+CR
"POWER"+ SPACE+"0"+CR
"POWER"+ SPACE+"?"+CR
Comment
QUERY POWER STATUS
PORT 4 ON
ENABLE SIGNAL ENHANCE
POWER ON
POWER OFF
* 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"
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