SY MHDBT-88P User manual

MHDBT-88P
SY Electronics Ltd, Unit 7, Worrall Street, Salford, Greater Manchester, M5 4TH, United Kingdom
Tel: [phone] – Fax: [phone] – www.sy.co.uk
Installation Guide
8 x 8 HDMI Matrix Switcher
with
HDBT PoC Outputs
8 HDMI in to 8 HDBT + 4 mirrored HDMI out

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The SY-MHDBT-88P is an 8 channel HDMI matrix switcher with 8 HDBT outputs, 4 local HDMI outputs and
8 stereo de-embedded audio outputs. It can work with all the SY HDBT receivers. Its transmission distance
for HDMI, IR, RS232 and PoC signals can up to 70 meters through CAT5e/6 cable.
As its good performance in control and transmission, the MHDBT-88P can be widely used in computer
realm, monitoring, large screen displaying, conference system, television education and bank securities
institutions etc.
Features
Supports 1080p@60Hz & 3D, DVI1.0 compliant
HDCP Compliant and DVI compatible, support HDMI 1.4a
Powerful EDID & HDCP management
8 HDBT outputs, to transmit HDMI, IR & RS232 to a 70-metre long distance over a Cat5E/6 cable
Supports PoC, providing power for all the receivers connected to the HDBT outputs.
Supports multiple control methods: front panel, RS232, IR and optional TCP/IP control.
Multiple EDID management
LCD shows connection status, switching status, HDCP status, and output resolution.
RS232 and IP control interfaces
Connectors and Controls
Front
Name
Description
Firmware
Micro USB port for updating firmware.
Power Indicator
Red when power on.
IR
Receive IR signals sent from IR remote.
SYSTEM MONITOR
Display real-time operation status.
INPUTS
Input channel selection and Menu navigation buttons
OUTPUTS
Output channel selection buttons
ALL
Selects an input to appear on all outputs together
EDID
EDID management button: Enable input port to manually capture and learn the EDID
data of output devices.
CLEAR
Cancels the current command, if ENTER has not been pressed.
ENTER
Confirms the desired command, or press and hold for 3 seconds to enter in to the
Inquiry mode.

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Rear
Name
Description
IR OUT
8 in total, connects to an IR transmitter to send the IR signal received from the
HDBT remote receivers.
HDMI
HDMI input ports, 8 in total.
IR IN
Connect with IR receiver, 8 in total, correspond to the 8 IR OUTs, cannot be
switched separately. It makes up an IR bi-directional transmission with the IR OUT
on the corresponding far-end receiver.
RS232
3-way captive connectors, 8 in total, corresponding to 8 output sources.
Communicates with the RS232 port on the corresponding HDBT receiver.
AUDIO
HDMI de-embedded stereo audio outputs, 8 in total
HDMI
Local HDMI output for HDMI Inputs 1 to 4. Connect to HDMI output devices for
local monitoring.
HDBT
Output extension ports, works with HDBT receivers, for example SY-HDBT-70PR, SY-
HDBT-100R.
RS232
Serial port for controlling the matrix.
IR ALL IN
IR control signal input from an IR receiver, the IR signal is sent to all 8 receivers
simultaneously.
TCP/IP
TCP/IP port for unit control
IR EYE
Connect an IR receiver to use the IR remote to control the MHDBT-88P.
Power
Use to turn on/off the matrix. The indicator is red when the power is on.
Power Supply
Connect with 110V to 240V AC power outlet.
GROUND
Connect to earth to ensure the unit is well grounded.
Connection with SY-HDBT-70PR
MHDBT-88P can work with SY-HDBT-70PR to extend transmission distance up to 70m and the ports all
support PoC, so a remote PSU is not required. Connect the HDBT output port of MHDBT-88P to SY-HDBT-
70PR with Cat5e/6 cable.

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Connection Diagram
Connection Procedure
1. Connect HDMI sources (e.g. DVD) to HDMI inputs of the MHDBT-88P with HDMI cables.
2. Connect HDMI displays (e.g. HDTV) to HDMI outputs of the MHDBT-88P with HDMI cables.
3. Connect speakers/earphones to AUDIO output ports (3-way captive screw connectors).
4. Connect the HDBT port of HDBT receiver and the MHDBT-88P with Cat5e/6 cable.
5. Connect the RS232 port (9 pin female D) of the MHDBT-88P with control device, e.g. a PC.
6. Connect the RS232 port of controlled device to any RS232 port (3p captive screw connector) of
the MHDBT-88P. The control signal can be transmitted bi-directionally.
7. The MHDBT-88P can be controlled by its built-in IR receiver or through the IR EYE port by
connecting with external IR receiver. The IR signal can also be transmitted bi-directionally
(connect IR OUT port of the MHDBT-88P to IR IN port of a far-end IR device, and connect IR IN
ports of the MHDBT-88P to IR OUT port of the far-end IR device), and in this mode, we can
control the MHDBT-88P remotely.
8. Note: The IR IN port has built-in infrared carrier receiver.
9. Connect the 100V~240V AC power adapter to the MHDBT-88P.
System Operations
Front Panel Button Control
Whenever a command is accepted the indicators of all the buttons pressed will blink green three times
then they will go off. If the command fails then they will go off immediately without blinking.

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Input to output selections
Operation: INPUT + OUTPUT + ENTER
Example: Input 1 to Output 2:
Note: In default status, 8 IR OUTs correspond with 8 HDMI INPUTS. When you connect an HDMI input to
an output, the IR OUT will be switched at the same time.
Connecting a single input to several outputs
Operation: INPUT + OUTPUT + OUTPUT +… + ENTER
Example: Switch input 2 to outputs 2, 4, and 7
Connecting an input to all outputs
Operation: INPUT + ALL + ENTER
Example: Convert Input 1 to all outputs
EDID Data Transfer
To copy the EDID data from a single output port to one input port, please note that the HDBT output will
always take priority:
Operation: EDID + INPUT + OUTPUT + ENTER.
Example: Input 2 reads EDID data from output 4
All input ports copy the EDID data from one output port
Operation: EDID, ALL + OUTPUT + ENTER
Example: All input ports read EDID data from output 4
Predefined EDID Settings
There are four types of embedded EDID data shown as below. Select one type of EDID data in EDID setting
status.
OUTPUT Button
Default Resolution
Colour Space
Digital Audio
3D Capable
1
1080p
YPbPr
PCM2.0
No
2
1080p
YPbPr
5.1
No
3
1080p
YPbPr
PCM2.0
Yes
4
1080p
YPbPr
5.1
Yes
Set a Predefined EDID Setting for One Input Port
Operation: Press EDID for 3 seconds to enter the EDID setting mode, INPUTS + OUTPUTS + ENTER.
Example: Set the EDID data of INPUT 4 to the fourth predefined EDID data type:
Press (hold for 3 seconds)
Set a Predefined EDID Setting for All Input Ports
Operation: Press EDID for 3 seconds to enter the EDID setting mode, ALL + OUTPUTS + ENTER.
Example: Set the EDID data of all input ports to the second predefined EDID data type:

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Press (hold for three seconds)
Inquiry Modes
Check status
Press and hold the button ENTER for 3 seconds to activate the system inquiry menu in the front panel LCD.
Use Left and Right direction button to navigate checking previous/next item.
Function Items
Example
Description
Check the connection
status of inputs
Y means the corresponding port is
connected with input device, N means
it is not.
Check the connection
status of outputs
Y means the corresponding port is
connected with output device, N means
not.
Correspondence
between inputs and
outputs
Shows the correspondence between
the 8 inputs and 8 outputs.
Check if the input is
with HDCP
Y means the input signal is with HDCP,
N means it is not.
Check if the output is
with HDCP
Y means the output signal is with HDCP,
N means it is not.
Check the output
resolution
Use button to check all the 8
output resolutions.
Output Check
Press any output button to check its corresponding input.
Example: To check which input is connected to output 2.
Operation: Press Output 2 button, the LCD screen displays:
AV: 1-> 2
IR: 1-> 2
Also the indicators of the Input 1 and Output 2 buttons will turn on for 3 seconds. Showing that output 2 is
connected to input 1.
Clear Button
If you decide you do not wish to carry a command, press CLEAR button to cancel the operation. The matrix
will not perform the command and remain in its previous state.
IR Control
By using IR & HDBT transmission technology, the MHDBT-88P provides the following features:
Control of the remote output device from the location of the MHDBT-88P.
Control local input/output device remotely.
Control the MHDBT-88P locally/remotely.
In 1 2 3 4
Connect Y Y Y Y
Out 1 2 3 4
Connect Y Y N N
Out 1 2 3 4
Input 1 2 3 3
In 1 2 3 4
HDCP Y Y Y N
Out 1 2 3 4
HDCP Y Y Y N
Resolution
Out 1 1920x1080

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IR Operations
IR Matrix Switching
The 8 IR OUT ports on the matrix and the 8 IR IN ports on the far-end receivers make up an 8x8 IR matrix:
Control Local Devices or the MHDBT-88P Remotely
The IR signal is sent to the corresponding IR remote, where it is transferred from the HDBT receiver to the
matrix via the Cat6 cable and then to the IR OUT port where it is received by controlled device.
Switching Operation
The 8 IR IN ports correspond with 8 HDMI input ports separately by default.
Sending the command: [x1]R[x2]. (See RS232 Control)
[x1] is the desired IR OUT port of the matrix, the IR transmitter connected to this port can be placed
at IR receiving area of output device or in front of the MHDBT-88P itself.
[x2] is the desired output channel number of the MHDBT-88P. There must be an HDBT receiver with
an IR detector connected.
Example: Send the RS232 command 3R2. to transfer the received IR signal from zone 2 to IR OUT port 3.
Note: When switching all the 8 IR input signal channels to the same IR out channel, it will not be possible
to control the 8 far-end IR receivers at the same time.
IR Carrier Enforcing
Factory Default
a) The received IR signal can only be transferred to the IR OUT port of the matrix only if the IR receiver
connected with HDBT receiver also has an IR carrier signal.
b) The received IR signal can only be transferred to the IR OUT port of the matrix only if the IR receiver
connected with IR ALL IN port of the matrix also has an IR carrier signal.
If the IR receiver connected to the HDBT receiver or IR ALL IN port of the matrix does not have an IR
carrier, then send the command %0901. to force the infrared carrier enforcing to be presented on the IR
OUT port.

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IR control setting
Control far-end output device from local
When you need to control a remote display from the matrix location, the IR receiver used must have the IR
carrier signal.
The IR signal is transferred to the corresponding IR OUT port on the HDBT receiver which must have an IR
transmitter connected.
When the IR receiver is connected to IR ALL IN port, the IR signal is simultaneously sent to all 8 HDBT
receivers each of which must have an IR transmitter attached, as shown below:
Control far-end device from Local
Control far-end device through IR ALL IN port
The IR signal received from IR ALL IN port will be transmitted to all the eight far-end HDBT receivers
connected to HDBT ports of the MHDBT-88P. See as below:

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Control far-end device through IR ALL IN port
Control local device from remote
The user can control a local device such as a video player, the HDBT 8x8 matrix etc. from the remote
location. In this case, the IR signal received from the HDBT receiver will be transmitted to the
corresponding IR OUT port of the MHDBT-88P, as shown below:
Control by a Third-party IR Control Device
Use the included IR converting cable (see below), connect the 3 pole end to IR input port of the MHDBT-

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88P, the 2 pole end to IR output port of the third-party control device. The IR signal is now transmitted via
the cable and eventually to the remote output device.
RS232 Control
RS232 Commands
Through the RS232 communication port, the user can control a far-end device whose bound rate is 2400,
4800, 9600, 19200, 38400, 57600 or 115200. Default settings of the MHDBT-88P: baud rate is 9600, data
bit is 8, stop bit is 1 and parity bit is none.
Communication protocol: Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Command Code
Function
/*Type;
Return information about the matrix type.
/%Lock;
Lock the front panel buttons on the matrix.
/%Unlock;
Unlock the front panel buttons on the matrix.
/^Version;
Return the firmware version
/:MessageOff;
Turn off the command feedback from the com port. It will only show
simple words like Switch OK!
/:MessageOn;
Turn on the feedback command from the com port.
Demo.
Switch to the “demo” mode, convert input and output in turn like1->1,
1->2, …8->7, 8->8, 1->1… and so on .The switching interval is 2 seconds.
Undo.
To cancel the previous operation.
[x]All.
Transfer signals from the input channel [x] to all output channels
All#.
Transfer all input signals to the corresponding output channels
respectively like 1->1, 2->2…
All$.
Switch off all the output channels.
[x]#.
Transfer signals from the input channel [x] to the output channel [x].
[x]$.
Switch off the output channel [x].
[x]@.
Switch on the output channel [x].
All@.
Switch on all output channels.
[x1]V[x2].
Transfer the video signal from the input channel [x1] to the output
channel [x2].
[x1]B[x2].
Transfer the AV and IR signal from the input channel [x1] to the output
channel [x2].
Status[x]
Check the status of the output channel [x]
Status.
Inquire the input channel to the output channels one by one.
Save[Y].
Save the present operation to the preset command [Y], ranges from 0 to
9.
Recall[Y].
Recall the preset command [Y].
Clear[Y].
Clear the preset command [Y].
PWON.
Work in normal mode.
PWOFF.
Enter into standby mode and cut off the power supply to HDBT
receivers.
STANDBY.
Enter into standby mode. (Do not cut off the power supply to HDBT
receivers, press other buttons or send other commands to start.)

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Command Code
Function
/%[Y]/[X]:[Z].
HDCP management command. [Y] is the input (value: I) or output (value:
O). [X] is the number of the port, if the value of X is ALL, it means all
ports. [Z] is for working status (value: 1 or 0).
Y=I & Z=1, sets the input port to HDCP enabled.
Y=O & Z=1, sets the output port to HDCP enabled.
Y=I & Z=0, sets the input port HDCP disabled.
Y=O & Z=0, sets the output port to HDCP disabled.
[x1]R[x2].
Transfer the IR signal from input channel [x1] to output channel [x2].
DigitAudioON[x].
Enable HDMI audio output of port x.
[X]=1, 2, 3, 4, 5, 6, 7, 8, enable this port.
[X]=9, enable all the 8 ports.
DigitAudioOFF[x].
Disable HDMI audio output of port x.
[X]=1, 2, 3, 4, 5, 6, 7, 8, disable this port.
[X]=9, disable all the 8 ports.
/+[Y]/[X]:******.
Set communication between PC and HDBT receiver.
1. [Y] is for RS232 port on the HDBT receiver
Value = 1,2,3,4,5,6,7,8,A,B,C,D,E,F,G or H
The value of [Y] is defined into the following meanings (with a given
baud rate stated by the value of [X]):
a. [Y] = 1, 2, 3, 4, 5, 6, 7, or 8, send this command to the
corresponding HDBT receiver to control far-end device.
b. [Y] = 9, send this command to all HDBT receivers to control all
far-end devices.
c. [Y] = A, B, C, D, E, F, G or H (HDBT PWON commands)
d. [Y] = I, J, K, L, M, N, O or P (HDBT PWOFF commands)
For items c or d, send this command, it will be saved by the
matrix switcher and not sent to the corresponding HDBT
receiver.
The command functions will be sent after the matrix receives
with the PWON command (for item c) or the PWOFF command
(for item d).
Note: A & I are for port 1. B & J are for port 2.
C & K are for port 3. D & L are for port 4.
E & L are for port 5. F & N are for port 6.
G & O are for port 7. H & P are for port 8.
2. [X] is the baud rate (Value ranges from 1 to 7, 1 is for 2400, 2 for
4800, 3 for 9600, 4 for 19200, 5 for 38400, 6 for 57600 and 7 for
115200)
3. ***** is represents the data up to a maximum of 48 bytes.
4. The symbol “.” is the end of the command. If there are some
symbols of “.” in one command, this case is allowed and the last one
is the end.
EDIDH[x]B[y].
Study the EDID from output port [x] to input port [y].
If the EDID data is effective and the audio part supports not only PCM
mode, then force-set it to support PCM mode only. If the EDID data is
not effective, then set it as initialized EDID data.
EDIDPCM[x].
Set the audio part of input port [x] to PCM format in EDID database.
EDIDG[x].
Get EDID data from the output port and display the output port number
of X.
EDIDMInit.
Recover the factory default EDID data.
EDIDM[X]B[Y].
Manually EDID switching. Enable input[Y] to study the EDID data of
output[X]. If the EDID data is not effective, then set it as initialized EDID
data.

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Command Code
Function
EDIDUpgrade[x].
Upgrade EDID data via the RS232 port.
[X] is for input port, when the value of X is 9, it means to upgrade all
input ports. When the switcher receives the command, it will show a
message to prompt you to send EDID file (.bin file). Operations will be
cancelled after 10 seconds. Please cut off all connections of HDBT ports.
UpgradeIntEDID[x].
Select one of the built-in EDID data blocks for upgrade. There are 4 built-in
EDID data blocks:
1. 1080P, 2D, PCM2.0
2. 1080P, 2D, 5.1 (audio)
3. 1080P, 3D, PCM2.0
4. 1080P, 3D, 5.1 (audio)
[x] = 1, 2, 3 or 4
When the switcher gets the command, it will show a message requesting
an EDID file (.bin file). Operations will be cancelled after 10 seconds.
EDID/[x]/[y].
Set the built-in EDID data of input port [x] to type [y].
The value of [y] is 1, 2, 3, and 4. The EDID data types are as stated above.
%0801.
Automatic HDCP management. If the input has HDCP, so does the
output.
%0900.
Set as infrared carrier following mode.
%0901.
Set as infrared carrier enforcing mode.
%0911.
Reset to factory default.
%9951.
Check the command sent by port 1 when PWON.
%9952.
Check the command sent by port 2 when PWON.
%9953.
Check the command sent by port 3 when PWON.
%9954.
Check the command sent by port 4 when PWON.
%9955.
Check the command sent by port 5 when PWON.
%9956.
Check the command sent by port 6 when PWON.
%9957.
Check the command sent by port 7 when PWON.
%9958.
Check the command sent by port 8 when PWON.
%9941.
Check the command sent by port 1 when PWOFF.
%9942.
Check the command sent by port 2 when PWOFF.
%9943.
Check the command sent by port 3 when PWOFF.
%9944.
Check the command sent by port 4 when PWOFF.
%9945.
Check the command sent by port 5 when PWOFF.
%9946.
Check the command sent by port 6 when PWOFF.
%9947.
Check the command sent by port 7 when PWOFF.
%9948.
Check the command sent by port 8 when PWOFF.
%9961.
Check the system locking status.
%9962.
Check the status while in standby mode.
%9963.
Check the working mode of infrared carrier.
%9964.
Check the IP address.
%9971.
Check the connection status of the inputs.
%9972.
Check the connection status of the outputs.
%9973.
Check the HDCP status of the inputs.
%9974.
Check the HDCP status of the outputs.
%9975.
Check the switching status.
%9976.
Check the output resolution.
%9977.
Check the status of digital audio of output channels.
%9978.
Check the HDCP status of the input ports.
Note:
1) Please disconnect all the twisted pairs before sending command EDIDUpgrade[X].
2) In above commands, [ and ] are symbols for easy reading and do not need to be typed in the actual
command.
3) Please remember to end the commands with the correct ending symbol . or ; as shown in the
commands above.

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4) Type the command carefully, it is case-sensitive.

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Control the MHDBT-88P from a PC
To control the MHDBT-88P from a PC, you need to connect its 9 pin female RS232 port to the RS232 port
of the PC, or connect to the RS232 port of any one of the HDBT receivers to the PC (the RS232 command
transmits to the MHDBT-88P via the Cat6 cable). By using RS232 control software and with the right
communication settings, you are able to control the MHDBT-88P.
Local Control of the MHDBT-88P
Control the MHDBT-88P from local
Control the MHDBT-88P from Remote Location
Control the MHDBT-88P from remote
Control 3rd-Party Device from Local
Connect the 9 pin female RS232 port of the MHDBT-88P with PC, by using the RS232 command
/+[Y]/[X]:******., you are able to control the 3rd-party device connected with the HDBT receiver.
Please refer to the detailed command descriptions in RS232 Control.

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Control 3rd-party Device through 9 pin female RS232 port
Control 3rd-Party Device from Remote Location
By connecting the 3-way captive screw RS232 port on the HDBT receiver to a PC (or the controlled device),
the RS232 signal can be transmitted bi-directionally.

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Control Far-end Device from Local
Connect the RS232 (3-way captive screw) port in any zone to PC, and connect the controlled RS232 device
(3rd party device) to the corresponding HDBT receiver that is on the same zone as the PC, see below:
Specification
Video Inputs:
8 HDMI
Video Outputs:
4 HDMI and 8 HDBT
HDBT Cable Length:
Up to 70 m when using PoC to SY-HDBT-70PR
Video Standards:
HDMI or DVI-D
Video Input Resolution:
Up to 1920 x 1200@60Hz or 1080p@60Hz
Video Output Resolution
1080p@60Hz
HDCP
Supports HDCP 1.3, auto and manual HDCP management.
EDID Management
Built-in EDID data and manual EDID management
Audio Output
Stereo Analogue and Digital HDMI
Control Interfaces
RS232 and IP
Power Supply
110V ~ 240V AC, 50 / 60 Hz
Power Consumption
Fully Loaded: 117.8 W
Unloaded: 54.4 W
Temperature
-20 ~ + 70 ℃
Humidity
10% ~ 90% non-condensing
Weight
5.6 kg
Dimensions (W x H x D)
483 x 44 x 380 mm (1U rack mounting)
Troubleshooting & Maintenance
1. When there is a colour losing or no video signal output, check hat the cables are properly
connected and are not broken.
2. If EDID management does not work correctly, check the HDMI cable.
3. When switching, there is a blank screen on the display, maybe the display does not support the
resolution of the video source. Switch again or use the EDID management to manually set the
resolution of the video source to a compatible output resolution.

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4. When user cannot control the switcher by computer through its COM port, check the COM port
number in the software, also make sure the COM port is operating, the communication
protocol is correct and that the RS232 cable is correctly wired.
5. If there is no output image when switching:
Check if there is a signal at the input.
Check if there is a signal at the output.
If there is no signal at either input of the output, check whether the cables are damaged or the
connection is loose, also try another cable.
Check if the output port number is the same with the controlled one.
If it is still the same after the above checking, maybe there is something wrong in the
switcher. Please send it to the dealer for repairing.
6. If the static becomes stronger when connecting the video/audio connectors, it probably due to
bad grounding, please check the grounding and make sure it connected well; otherwise it
would damage the switcher.
If the switcher cannot be controlled through the RS232 port, front panel buttons or by the IR remote, the
unit may have already been faulty. Please return it to your dealer for repair.
Safety Instructions
To ensure reliable operation of these products as well as protecting the safety of any person using or
handling these devices while powered, please observe the following instructions.
1. Use the power supplies provided. If an alternate supply is required, check Voltage, polarity and
that it has sufficient power to supply the device it is connected to.
2. Do not operate either of these products outside the specified temperature and humidity range
given in the above specifications.
3. Ensure there is adequate ventilation, as these products generate heat while operating.
4. Repair of the equipment should only be carried out by qualified professionals as these products
contain sensitive devices that may be damaged by any mistreatment.
5. Only use these products in a dry environment. Do not allow any liquids or harmful chemicals to
come into contact with these products.
After Sales Service
1. Should you experience any problems while using these products, firstly refer to the
Troubleshooting section in this manual before contacting SY Technical Support.
2. When calling SY Technical Support, the following information should be provided:
Product name and model number
Product serial number
Details of the fault and any conditions under which the fault occurs.
3. These products have a two year standard warranty, beginning from the date of purchase as stated
on the sales invoice. Online registration of these products is required to activate the full three
year extended warranty. For full details please refer to our Terms and Conditions.
4. SY Product warranty is automatically void under any of the following conditions:
The product is already outside of its warranty period
Damage to the product due to incorrect usage or storage
Damage caused by unauthorised repairs
Damage caused by mistreatment of the product
5. Please direct any questions or problems you may have to your local dealer before contacting SY
Electronics.