LINK-MI LM-DA401 User manual

U S E R M A N U A L
LM-DA401
SPDIF/TOSLINK
Digital Optical Audio Switch 4x1

INTRODUCTION
Dear customer
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.
Our series of HDMI converters, switchers, extenders, matrixes and splitters are
designed to make your A/V device use more convenient, more comfortable, more
productive and more cost-efficient.
This SPDIF/TosLink Digital Optical Audio Switchers can let the users to connect four.
digital optical TosLink sources to one optical TosLink (SPDIF) input on your AV amplifier.
Our devices offer solutions for noise, space and security concerns, data center control,
information distribution, conference room presentation, school and corporate training
environments.
FEATURES
Four ways of optical fiber signals switch to one sets of SPDIF/TosLink signal receiving
device.
Audio format support : LPCM2.0/DTS/Dolby-AC3
Support signal retiming
Used optical fiber cable loss less the 0.2Db/m, Output distance is up to 40m.
The input control can through R/M and also can directly press the button
Support last time working state memory when power off
Over-voltage protection can prevent the damage caused by connecting unmatched
power adapter to the machine
LED status indication
No loss of quality
Installs in minutes
Need DC5V power supply
The accessories with the machines lists as picture：
1、5V Power Adapter
2、User manual
3、Remote-control unit
4、IR extender cable

Physical Connection Showing Picture：
Figure 1.0 Front Panel Showing Picture
1. POWER : power switch
2. IR : Remote control
3. 1,2,3,4 : input signal LED
4. SWITCH : input switch
Figure 1.1 Rear Panel Showing Picture
5. DC5V : 5V Power Adapter Interface
6. IR EXT : Remote control extender line input
7. IN 1,2,3,4 : SPDIF/TosLink input 1,2,3,4
8. OUTPUT : SPDIF/TosLink output
Remote-control unit operating instructions:
Power switch button
SPDIF/TosLink input port switch button, If you want to choose input source 2 , direct press
numeric key 2
Note: Before using the remote of the unit, please first take out the insulation plastic film from remote-control unit tail. If the
remote is under long-time rest state, please insert the insulation plastic film.
Operating and Connecting：
1. To use the optical fiber cable to connect the optical fiber signal source (such as blue-
ray
player, the computer and so on) with the switcher input.
2. To let the switcher output port connected to the optical fiber signal receiver (such as
amplifier, home theater and so on) by using the optical cable.
3. Connect IR extender line to IR extender line input port.
4. Connect 5V power supply to the matrix DC input port
5. Use the remote or button to switcher the input source freely.

SPECIFICATIONS:
Support audio format
LPCM2.0/DTS/Dolby-AC3
Peak wavelength
650nm
Max baud rate
16Mbps
Output cable distance
≤40m(Use the optical fiber cable loss less the 0.2Db/m )
Max working current
100mA
Power adapter format
Input:AC (50HZ, 60HZ) 100V-240V; Output: DC5V
Operating Temperature range
(0 to +40℃)
Operating Humidity range
5 to 90%RH (No Condensation)
Dimension (L x W x H)
110*49*20(mm)
Weight
283g
Notes:
Pls use the machine as the instruction listed to keep the long use lifetime of the machine.
1. The machine should be placed at the spot far from the Damp, High-Temperature, Dusty,
Erosive, and oxidative environment.
2. All parts will be free from the strong shake, hit, fall.
3. Touching the power adapter with the wet hands is prohibited.
4. Pls hold the power adapter head and do not pull the power cord when cut off from the
socket.

5. Pls turn the power off when the machine is not used for long time.
6. Pls do not open the cover and do not touch the inside parts.
7. Pls use the original factory power adapter.
Before power on, pls check the connection line carefully. And make sure that all interfaces
are normally connected. The common trouble shooting way shows below:
Serial NO
Trouble
Description
Cause and Ways to deal with
1
Non-Power-
Connected
1、Check if the power adapter head is truly and
correctly inserted the power socket.
2、Check the power switcher if it is in on status.
2
No Picture
1、Pls to make sure that the TV is on and has been
connected with the machine.
2、To check if the signal source is on and well
connected.
3、Check the system connection quality.
4、Check if the line is all good quality.
5、Check the cable quality
3
Obscure Picture
1、To try again to connect the cable to be free from the
unsuccessful connection.
2、HDMI Cable Quality