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Thank you for purchasing this product. For optimum performance and safety, please read these
instructions carefully before connecting, operating or adjusting this product. Please keep this
manual for future reference.
I. Introduction
This is a high performance HDMI 4x1 switcher that supports HDTV formats up to
4Kx2K@60Hz and all HDMI 3D TV formats. It can extract HDMI stream audio to separate
digital and analog audio output. This product supports HDCP repeater/CEC/ARC functions.
Select any of the inputs by front panel button or IR Remote. The corresponding indicator LED
on the front panel will be illuminated.
II. Features
Compliant with HDMI 2.0a, DVI 1.0 standards
HDCP 2.2 and HDCP 1.4 compliant

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Video formats up to 4Kx2K@60 and all HDMI 3D video formats
Support PCM, Dolby TrueHD, DTS-HD Master Audio up to 7.1CH
Digital and analog audio output
Support smart EDID management (Auto/2CH/5.1CH/7.1CH selectable)
Support input port auto switching or manual switching mode
Audio Return Channel (ARC) supports
III. Package
1 x HDMI 4x1 Switcher
1 x 5V/1A Power Adapter
1 x 38KHz IR Rx cable
1 x Optical convert header (for SPDIF audio output)
1 x HDMI 4x1 IR Remote
1 x Operation Manual

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IV. Specifications
Frequency Bandwidth
Input Ports
Output port
HDMI Audio Output
ESD Protection
Dimensions (mm)
Weight (g)
Power Consumption
Operating Temperature
Storage Temperature
18Gbps
4 HDMI Female ports, 1 IR Receive port and 1 RS232 port
1 HDMI Female port and 1 L/R & Optical port
PCM2.1/5.1/7.1CH,Dolby 5.1, DTS5.1, Dolby-TrueHD, DTS-HD
Human Body Model: ± 8kV (air-gap discharge)
± 4kV (contact discharge)
180 (D) x 85 (W) x 11.6 (H)
300
Max 2.5W
0˚C ~ 40˚C / 32˚F ~ 104˚F
-20˚C ~ 60˚C / -4˚F ~ 140˚F

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V. Switcher Operation controls and Functions
Front Panel:
① Input indicator LED - corresponding port LED will light when port is selected.
② Auto or manual select button:
Press this button >2 seconds to select auto switching or manual switching mode.
Under manual switching mode, short press this button to select input port.
③ EDID status LED (Auto means using TV EDID).
④ EDID select button (Press this button to select EDID mode Auto/2.1CH/5.1CH/7.1CH)
⑤ ARC status LED (this LED will be illuminated if ARC is enabled successfully)

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⑥ ARC function on/off button
Rear Panel:
① HDMI output port, connect to HDTV or monitor via HDMI cable
②③④⑤ HDMI input ports, connect with DVD, PS4 or other source unit
⑥ Audio output (including L/R analog and optical audio out)
⑦ RS232 port ⑧ IR receiver port ⑨ DC 5V input port

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VI. IR Remote
ARC: Press this button to enable or disable ARC function. ARC LED on
front panel will be illuminated if ARC function is enabled successfully.
Auto/2.1ch/5.1ch/7.1ch: Press to select different EDID settings.
corresponding LED on front panel will be illuminated.
Auto Source: Press this button to select auto switching / manual switching
mode.
In1/In2/In3/In4: Under manual switching mode, press this button to select
the input port.

CSW-HD40118G
RS232 Protocol and Commands
Baudrate: 19200
Data Width: 8 bit
Parity: None
Stop: 1 bit
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Output 1
Input 1
Input 2
Input 3
Input 4
A5 5B 02 03 01 00 01 00 00 00 00 00 F9
A5 5B 02 03 02 00 01 00 00 00 00 00 F8
A5 5B 02 03 03 00 01 00 00 00 00 00 F7
A5 5B 02 03 04 00 01 00 00 00 00 00 F6
Audio Switch
Audio Auto A5 5B 03 02 01 00 01 00 00 00 00 00 F9
Stereo Audio2.0 A5 5B 03 02 02 00 01 00 00 00 00 00 F8
Dolby/DTS 5.1 A5 5B 03 02 03 00 01 00 00 00 00 00 F7
HD Audio 7.1
Query Audio
Audio Auto
Audio 2.0
Audio 5.1
Audio 7.1
A5 5B 03 02 04 00 01 00 00 00 00 00 F6
A5 5B 01 0C 01 00 00 00 00 00 00 00 F2
A5 5B 01 0C 01 00 01 00 00 00 00 00 F1
A5 5B 01 0C 01 00 02 00 00 00 00 00 F0
A5 5B 01 0C 01 00 03 00 00 00 00 00 EF
A5 5B 01 0C 01 00 04 00 00 00 00 00 EE
Auto Switch
ON
OFF
Query Auto
Auto ON
Auto OFF
ARC
ON
OFF
Query ARC
ARC ON
ARC OFF
A5 5B 02 05 0F 00 00 00 00 00 00 00 EA
A5 5B 02 05 F0 00 00 00 00 00 00 00 09
A5 5B 01 0D 00 00 00 00 00 00 00 00 F2
A5 5B 01 0D 0F 00 00 00 00 00 00 00 E3
A5 5B 01 0D F0 00 00 00 00 00 00 00 02
A5 5B 10 01 0F 00 01 00 00 00 00 00 DF
A5 5B 10 01 F0 00 01 00 00 00 00 00 FE
A5 5B 10 02 00 00 01 00 00 00 00 00 ED
A5 5B 10 02 0F 00 01 00 00 00 00 00 DE
A5 5B 10 02 F0 00 01 00 00 00 00 00 FD
Device Information Query ( e.g:No Devices Connected)
HDMI IN1
HDMI IN2
HDMI IN3
HDMI IN4
HDMI OUT
A5 5B 01 04 01 00 00 00 00 00 00 00 FA
A5 5B 01 04 02 00 00 00 00 00 00 00 F9
A5 5B 01 04 03 00 00 00 00 00 00 00 F8
A5 5B 01 04 04 00 00 00 00 00 00 00 F7
A5 5B 01 05 01 00 00 00 00 00 00 00 F9

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