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HDMI Selection Switcher
PTN electronics Limited www.PTN-electronics.com
HDMI Switcher
WHD4 & WHD8
1 Function
WHD4 / WHD8 is a 4x1 / 8x1 selection switcher, which enables easy manual or RS232/infrared
remote switching within different HDMI sources.
It is a high performance HDMI device with resolution up to 1920*1200@60Hz, 1080p & 2K,
supporting EDID and DDC, with HDCP & HDTV compliant.
2 WHD4 / WHD8 (HDMI selection switcher 4x1 / 8x1)
WHD4:
WHD8:
USER MANUAL
HDMI Selection Switcher
PTN electronics Limited www.PTN-electronics.com
3 Specification
Input Output
Input 4 / 8 HDMI Output 1 HDMI
Input Connector HDMI 1.3 Output Connector HDMI 1.3
Input Level T.M.D.S. 2.9V/3.3V Output Level T.M.D.S. 2.9V/3.3V
Input Impedence 50Ω
Output
Impedence
50Ω
General
Resolution Range
Up to 1920 x 1200 or
1080P@60Hz
Bandwidth 340 MHz (10.2 Gbit/s)
Switching Speed 200ns (Max.)
Input / Output
Level
T.M.D.S. 2.9V/3.3V
Gain 0dB Video Impedance 50Ω
EDID / DDC
Supports Extended Display Identification Data (EDID) and Display Data Channel (DDC)
data using DVI and HDMI standards, EDID and DDC signals are actively bufferred. The
built-in EDID/DDC database can analyze these two signals, mix them, and realize the
handshake of them internally.
HDCP
Compliant with High-bandwidth Digital Content Protection (HDCP) using DVI and HDMI
1.3 standards. The built-in HDCP management technology can analyze HDCP key, and
realize the handshake internally.
Control Parts
Control/Remote
Buttons; RS-232 (9-pin female D
connector); IR remote
Pin
Configurations
2 = TX, 3 = RX, 5 = GND
General
Temperature
-20 ~ +70℃
Humidity 10% ~ 90%
Power Supply 100VAC ~ 240VAC, 50/60Hz
Power
Consumption
10W
Case Dimension
W155 x H30 x D80mm for WHD4
W310 x H30 x D100mm for WHD8
Product Weight
0.5Kg for WHD4;
1Kg for WHD8.
HDMI Selection Switcher
PTN electronics Limited www.PTN-electronics.com
4 IR Remote
5 The switching command : RS232 controlling
Communication protocol:
Baud rate: 9600 Date bit: 8 Stop bit: 1 Parity bit: none
(WHD4 has the same protocol with WHD8, the only difference is without input5 to input8)
Command
Function Description Feedback Code
1B1. Switching the audio/video to input 1 AV: 1 -> 1
2B1. Switching the audio/video to input 2 AV: 2 -> 1
2B2. Switching the audio/video to input 3 AV: 3 -> 1
2B3. Switching the audio/video to input 4 AV: 4 -> 1
2B4. Switching the audio/video to input 5 AV: 5 -> 1
2B5. Switching the audio/video to input 6 AV: 6 -> 1
2B6. Switching the audio/video to input 7 AV: 7 -> 1
2B7. Switching the audio/video to input 8 AV: 8 -> 1
0B0. Mute the output MUTE
0B1. UnMute the output UNMUTE
600% Checking the working status
AV: 1 -> 1
HDMI Selection Switcher
PTN electronics Limited www.PTN-electronics.com
6 System Diagram
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