Comm-Tec MTX88M-N User manual

MTX88M-N
Modular Matrix Switcher 8x8
All Rights Reserved
Version: 2017V1.0
User Manual

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Preface
Read this user manual carefully before using this product. Pictures shown in this
manual are for reference only, different models and specifications are subject to real
product.
This manual is only for operation instruction only, not for any maintenance usage. The
functions described in this version are updated till September 25, 2017. In the constant
effort to improve our product, we reserve the right to make functions or parameters
changes without notice or obligation. Please refer to the dealers for the latest details.
FCC Statement
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. It has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a commercial
installation.
Operation of this equipment in a residential area is likely to cause interference, in
which case the user at their own expense will be required to take whatever measures
may be necessary to correct the interference.
Any changes or modifications not expressly approved by the manufacture would void
the user’s authority to operate the equipment.

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SAFETY PRECAUTIONS
To insure the best from the product, please read all instructions carefully before using
the device. Save this manual for further reference.
Unpack the equipment carefully and save the original box and packing material for
possible future shipment
Follow basic safety precautions to reduce the risk of fire, electrical shock and injury
to persons.
Do not dismantle the housing or modify the module. It may result in electrical shock
or burn.
Using supplies or parts not meeting the products’ specifications may cause damage,
deterioration or malfunction.
Refer all servicing to qualified service personnel.
To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this
product near water.
Do not put any heavy items on the extension cable in case of extrusion.
Do not remove the housing of the device as opening or removing housing may
expose you to dangerous voltage or other hazards.
Install the device in a place with fine ventilation to avoid damage caused by
overheat.
Keep the module away from liquids.
Spillage into the housing may result in fire, electrical shock, or equipment damage. If
an object or liquid falls or spills on to the housing, unplug the module immediately.
Do not twist or pull by force ends of the optical cable. It can cause malfunction.
Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to
the device before cleaning.
Unplug the power cord when left unused for a long period of time.
Information on disposal for scrapped devices: do not burn or mix with general
household waste, please treat them as normal electrical wastes.

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ontents
1. Introduction.................................................................................................................6
1.1. About MTX88M-N.............................................................................................6
1.2. Features ...........................................................................................................6
1.3. MMX Signal Card..............................................................................................7
1.4. Package List.....................................................................................................7
2. Panel Description........................................................................................................8
2.1. MTX88M-N ............................................. Errore. Il segnalibro non è definito.
2.1.1. Front Panel.............................................................................................8
2.1.2. Rear Panel..............................................................................................9
2.2. Changeable Cards..........................................................................................10
2.2.1. 4I-DV & 4O-DV.....................................................................................10
2.2.2. 4I-DS& 4O-DS......................................................................................11
2.2.3. 4I-HD & 4O-HD.....................................................................................12
2.2.4. 4I-HS & 4O-HS.....................................................................................14
2.2.5. 4I-VG & 4O-VG.....................................................................................15
2.2.6. 4I-VA.....................................................................................................17
2.2.7. 4I-SD & 4O-SD.....................................................................................17
2.2.8. 4I-SS ....................................................................................................18
2.2.9. 4I-TP & 4O-TP......................................................................................18
2.2.10. 4I-UH & 4O-UH...................................................................................19
2.2.11. 4I-UF & 4O-UF ...................................................................................20
2.2.12. 4I-BT & 4O-BT....................................................................................21
3. System Connection...................................................................................................22
3.1. Usage Precautions .........................................................................................22
3.2. Connection Diagram.......................................................................................22
4. Control Operations....................................................................................................23
4.1. Front Panel Button Control .............................................................................23
4.2. IR Remote Control..........................................................................................24
4.3. RS232 Control................................................................................................25
4.3.1. RS232 Connection ...............................................................................25
4.3.2. RS232 Communication Command.......................................................25

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4.4. TCP/IP Control................................................................................................33
4.4.1. Control Mode........................................................................................33
4.4.2. Control MTX88M-N via TCP/IP communication software.....................35
4.4.3. Port Management.................................................................................36
5. Specification .............................................................................................................37
5.1. Main Unit ........................................................................................................37
5.2. Changeable Card............................................................................................37
5.2.1. 4I-DV & 4O-DV.....................................................................................37
5.2.2. 4I-DS & 4O-DS.....................................................................................38
5.2.3. 4I-HD & 4O-HD.....................................................................................38
5.2.4. 4I-HS & 4O-HS.....................................................................................39
5.2.5. 4I-VG & 4O-VG.....................................................................................39
5.2.6. 4I-VA.....................................................................................................40
5.2.7. 4I-SD & 4O-SD.....................................................................................40
5.2.8. 4I-SS ....................................................................................................41
5.2.9. 4I-TP & 4O-TP......................................................................................42
5.2.10. 4I-UH & 4O-UH...................................................................................42
5.2.11. 4I-UF & 4O-UF ...................................................................................43
5.2.12. 4I-BT & 4O-BT....................................................................................44
6. Troubleshooting & Maintenance ...............................................................................46
7. Customer Service .....................................................................................................48

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Introduction
1.1. About MTX88M-N
The MTX88M-N is a high-performance 8x8 video and audio modular matrix switcher. It
supports different video signals with cross switching. Every AV signal is transmitted
and switched independently to decrease signal attenuation. MTX88M-N supports
various changeable cards including HMDI, DVI, VGA, SDI and HDBaseT etc. Users
can choose to insert different signal card for different application.
MTX88M-N has 1 RS232 port and 1 TCP/IP port for convenient control from third-party.
With its flexible design, MTX88M-N can be used for different project and tend to be an
all-in-one solution. It is the combo solution for multimedia conference rooms, control
rooms, broadcasting rooms, shopping center etc. It will handle all the audiovisual
management, including the switching, driving, scaling etc.
1.2. Features
Modular chassis with configurable I/O slots, ranging from 4x4 to 8x8
Various I/O cards, includes HDMI, HDBaseT, SD/HD/3G-SDI, DVI and VGA cards
(Compatible with YUV, YC & CVBS.) to configure any matrix
Truly cross-point switching, any input to any output, regardless signal format
Support HDMI1.4a, support 3D
Integrated HDBaseT technology
Controllable via button, RS232 & optional TCP/IP, also compatible with 3rd parties
control
HDCP compliant
LCD display

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1.3. MMX Signal Card
The MTX88M-N supports multiple signal cards as listed in the following charts:
Input Cards
Spec
Models
Inputs
Signal Format
4I-HD
4
HDMI
4I-HS
4
HDMI& analog audio
4I-DV
4
DVI
4I-DS
4
DVI, HDMI, VGA, AV,
YPbPr
4I-VG
4
VGA
4I-VA
4
VGA& analog audio
4I-SD
4 inputs& LOOP
SDI
4I-SS
4 inputs& LOOP
SDI
4I-TP
4
HDMI TP, IR, RS232
4I-UH
4
HDMI& analog Audio
4I-UF
4
Optical Fiber
4I-BT
4
HDBT, RS232, Audio
Output Cards
Spec
Models
Outputs
Signal Format
4O-HD
4
HDMI
4O-HS
4
HDMI& analog audio
4O-DV
4
DVI
4O-DS
4
DVI, HDMI, VGA, AV,
YPbPr
4O-VG
4 VGA& Stereo
audio
VGA, analog audio
4O-SD
4 outputs& LOOP
SDI
4O-TP
4
HDMI TP, IR, RS232
4O-UH
4
HDMI& analog Audio
4O-UF
4
Optical Fiber
4O-BT
4
HDBT, RS232, Audio
1.4. Package List
✓1 x MTX88M-N
✓1 x Power Cord
✓1 x IR remote (Not include battery)
✓4 x Plastic cushions
✓1 x RS232 cable
✓1 x User manual
Note: Confirm all the accessories are included, if not, please contact with the dealers.

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2. Panel Description
2.1. MTX88M-N
2.1.1. Front Panel
No.
Name
Description
①
IR
IR sensor, receive IR signal sent from IR remote
②
Power LED
Illuminate red once powered on
③
LCD Screen
Display real-time operation status
④
INPUTS
Back-lit buttons for input selection, ranges from 1~ 8,
correspond to 1~8 sources on input signal cards (counting
from left to right, top to bottom)
⑤
OUTPUTS
Back-lit buttons for output selection, ranges from 1~ 8,
correspond to 1~8 displays on output signal cards (counting
from left to right, top to bottom)
⑥
MENU
AV: Transfer AV signal from AV signal card.
VIDEO: Transfer AV signal from AV signal card only.
AUDIO: Unavailable.
ALL: Select all input/output channel
THROUGH: To transfer the signals directly to the
corresponding output channels.
UNDO: Undo button, to resume to the status before the
command just performed.
: Backspace button, to backspace the last press.
INPUTS
OUTPUTS
1 2 3456 7 8
1 2 3456 7 8
AV Video Audio
MENU
IR
SYSTEM MONITOR
Undo
ALL
All Through
1
25
346

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2.1.2. Rear Panel
No.
Name
Description
①
INPUTS
Input signal card slots, 2 in total, insert necessary input cards
here
②
OUTPUTS
Output signal card slots, 2 in total, insert necessary output
cards here
③
TCP/IP
RJ45 connector for TCP/IP control
④
RS232
Serial control port for RS232 control
⑤
Power port
Connect with household alternating current power
⑥
GND connector
Used for system grounding
R 232S
TCP/IP CONTROL
OUTPUTS OUTPUTS
VGA 3VGA 2VGA 1 VGA 4
INPUTS INPUTS
VGA 3VGA 2VGA 1 VGA 4
OUTPUTS OUTPUTS
VGA 3VGA 2VGA 1 VGA 4
INPUTS INPUTS
VGA 3VGA 2VGA 1 VGA 4
123
4
5
6
INPUTS INPUTS
SEAMLESS
LR
1
2
Audio
AV 1 AV 2 LR
3
4
Audio
AV 3 AV 4
OUTPUTS OUTPUTS
SEAMLESS
LR
1
2
Audio
AV 1 AV 2 LR
3
4
Audio
AV 3 AV 4
INPUTS INPUTS
HDMI 3
HDMI 2HDMI 1 HDMI 4
L R L R
1
2
3
4
Audio Audio
SEAMLESS
OUTPUTS OUTPUTS
HDMI 3
HDMI 2HDMI 1 HDMI 4
L R R
1
2
3
4
Audio Audio
SEAMLESS

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2.2. Changeable Cards
MTX88M-N support expansion through various changeable input/ output cards of
different signals including DVI, HDMI, VGA, twisted pair, SDI etc. Here is a brief
introduction to the changeable cards.
2.2.1. 4I-DV & 4O-DV
DVI signal card. (Please check the specification from 5.2.1)
It is fully compatible with HDMI1.3 and HDCP, but not supporting analogy signal.
It is embedded EDID management technology, supporting DDC.
4I-DV: input card, maximum four input signal. Input signal can pass to output device
through 4O-DV or other kinds of output cards.
4O-DV: output card, maximum four output signal, output signals from 4I-DV, or other
kinds of input cards.
Pin Layout of the DVI-I connector (Dual-Link). (Female)
Pin
Function
Pin
Function
1
T.M.D.S.Data2-
13
T.M.D.S.Data3+
2
T.M.D.S.Data2+
14
+5V Power
3
T.M.D.S. Data
2/4 Shield
15
Ground (return for
+5V,
Hsync and Vsync)
4
T.M.D.S. Data 4-
16
Hot Plug Detect
5
T.M.D.S. Data
4+
17
T.M.D.S. Data 0-
6
DDC Clock
18
T.M.D.S. Data 0+
7
DDC Data
19
T.M.D.S. Data 0/5
Shield
8
Analog Vertical
Sync
20
T.M.D.S.Data5-
9
T.M.D.S.Data1-
21
T.M.D.S.Data5+

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10
T.M.D.S.Data1+
22
T.M.D.S. Clock
Shield
11
T.M.D.S.Data1/3
Shield
23
T.M.D. S. Clock +
12
T.M.D.S.Data3-
13
T.M.D.S.Data3+
C1
RED
C2
Analog Green
C3
Analog Blue
C4
Horizontal Sync
Analog
C5
GND
Note: Pin C1~C5 are not used in 4I-DV & 4O-DV.
2.2.2. 4I-DS& 4O-DS
Seamless DVI signal card. (Please check the specification from 5.2.2)
It is fully compatible with HDMI1.3& HDCP, and supports seamless transmission for
high-definition DVI, HDMI, VGA, AV, YPbPr signals. Signal format can be modified via
RS232 commands.
It boasts embedded EDID management (only for HDMI/ DVI signal), supporting DDC.
4I-DS: seamless input card, maximum four input signal. It can automatically identify
the format of input signal. Input signal can pass to output device through 4O-DS, or
other kinds of output cards.
4O-DS: seamless output card, maximum four output signal. Automatically recognize
output signal (HDMI/ DVI), and output resolution is adjustable. Output signal can come
from 4I-DS, or from other kinds of input cards. It supports off memory for resolution,
signal format, HDCP compliant status.
Note:
When 4O-DS works with input cards except 4I-DS, to ensure reliable seamless
output, adjust the input signals to any one of the following 5 resolutions: 1024x768,
1280x720, 1600x1200, 1920x1080, 1920x1200.
INPUTS INPUTS
DVI 1 DVI 2 DVI 3 DVI 4
SEAMLESS
DVI 1 DVI 2 DVI 3 DVI 4
SEAMLESS
OUTPUTS OUTPUTS

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Before using 4O-DS, upgrade the front-board and backboard of MTX88M-N. Seek
technical assistant from our technical supporters.
DVI interfaces on the signal card are same with the interfaces on 4I-DV& 4O-DV. Pin
C1~C5 are used in 4I-DS & 4O-DS.
When connecting to VGA, YPbPr or C-VIDEO signal, insert converting cables
according to specific pin definitions (see the figures below):
DVI- C-VIDEO:
Pin
Signal
C1
Yellow
C5
GND
Other pins are unused.
DVI- YPbPr:
Pin
Signal
Pin
Signal
C1
RED
C2
GREEN
C3
BLUE
C5
GND
Other pins are unused.
DVI- VGA (female):
Pin
Signal
Pin
Signal
C1
RED
C2
GND
C3
GREEN
C4
Horizontal Sync
Analog
8
Vertical Sync Analog
Other pins are unused.
2.2.3. 4I-HD & 4O-HD
HDMI signal card. (Please check the specification from 5.2.3)
It boasts embedded EDID management, and supports DDC. It’s also compliant with
DVI signal & HDCP.
4I-HD: input card, maximum four input signal. Input signal can pass to output device
through 4O-HD, or other kinds of output cards.

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4O-HD: output card, maximum four output signal, output signals from 4I-HD, or other
kinds of input cards.
Pin layout of the HDMI connectors (female).
No.
Signal
No.
Signal
1
TMDS Data 2+
20
SHELL
2
TMDS Data 2
Shield
19
Hot Plug Detect
3
TMDS Data 2-
18
+5V Power
4
TMDS Data 1+
17
Ground
5
TMDS Data 1
Shield
16
DDC Data
6
TMDS Data 1-
15
DDC Clock
7
TMDS Data 0+
14
No Connect
8
TMDS Data 0
Shield
13
CEC
9
TMDS Data 0-
12
TMDS Clock-
10
TMDS Clock+
11
TMDS Clock
Shield
2.2.4. 4I-HS & 4O-HS
Seamless HDMI signal card with auxiliary audio port (Please check the specification
from 5.2.4)
It boasts seamless switch that provides real-time audio& video switching; support
HDMI1.3& HDCP1.2, compliant with DVI signal;
HDMI embeded audio and auxiliary stereo audio supports PCM format, audio source
selectable via designed command (default: HDMI embeded audio);
Built in scaler handles various resolution, output resolution adjustable via command.
4I-HS: input card, maximum four input signal. Input signal can pass to output device
through 4O-HS, or other kinds of output cards.

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4O-HS: output card, maximum four output signal, output signals from 4I-HS, or other
kinds of input cards.
HDMI connectors of 4I-HS & 4O-HS are same with the 4I-HD & 4O-HD.
Note: When 4O-HS works with input cards except 4I-HS, to ensure reliable seamless
output, adjust all the input signals to the same designed resolution: 1024x768,
1280x720, 1600x1200, 1920x1080, or 1920x1200.
2.2.5. 4I-VG & 4O-VG
VGA signal card. (Please check the specification from 5.2.5)
Scale all inputs to 1080p or 1920x1200
The bandwidth is up to 350MHz (-3dB);
Input signal can be VGA (RGBHV), YPbPr, S-video, C-video or CVBS;
Output card only supports VGA output
4I-VG: input card, maximum four input signal, support VGA (RGBHV), YPbPr, S-video,
C-video& CVBS. Input signal can pass to output device through any kinds of output
cards.
4O-VG: output card, maximum four VGA output signal and 4 stereo audio outputs,
output video signal from 4I-VG, or other kinds of input cards, and output audio signal
from the audio of the input signal.

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Pin layout of the VGAconnectors (female):
Pin
Signal
Pin
Signal
1
RED
9
KEY/PWR
2
GREEN
10
GND
3
BLUE
11
ID0/RES
4
ID2/RES
12
ID1/SDA
5
GND
13
HSync
6
RED_RTN
14
VSync
7
GREEN_RTN
15
ID3/SCL
8
BLUE_RTN
When connecting to YPbPr or C-VIDEO signal, insert converting cables according to
specific pin definitions (see the figures below):
VGA- YPbPr:
Pin
Signal
Pin
Signal
1
RED
6
GND
2
GREEN
7
GND
3
BLUE
8
GND
Other pins are not used.
VGA- C-VIDEO:
Pin
Signal
Pin
Signal
1
RED
6
GND
7
GND
8
GND
Other pins are not used.

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2.2.6. 4I-VA
VGA signal card. (Please check the specification from 5.2.6)
Scale all inputs to 1080p or 1920x1200;
Input signal can be VGA (RGBHV), YPbPr, S-video, C-video or CVBS;
4 stereo audio inputs.
4I-VA: input card, maximum four VGA inputs and four stereo audio inputs. Input signal
can pass to output device through any kinds of output cards.
The VGA connector and source connection are same with the 4I-VG.
2.2.7. 4I-SD & 4O-SD
SDI signal card. (Please check the specification from 5.2.7)
It is compatible with different SDI signal formats, including SD/HD/3G-SDI (adaptive)
Every port has loop output for local monitoring.
4I-SD: input card, maximum four input signal. Input signal can pass to output device
through 4O-SD, or other kinds of output cards.
4O-SD: output card, maximum four output signal, output signals from 4I-SD, or other
kinds of input cards.
INPUTS INPUTS
VGA 3
VGA 2
VGA 1 VGA 4
L R L R
1
2
3
4
SEAMLESS

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2.2.8. 4I-SS
Seamless SDI signal card (Please check the specification from 5.2.8)
It is compatible with different SDI signal formats, including SD/HD/3G-SDI (adaptive),
support seamless transmission for high-definition signal up to 1080p;
Auto-detect input resolution and scale to 1080p@60Hz (default resolution, adjustable
via command);
Every port has loop output for local monitoring.
4I-SS: input card, maximum four input signal. Input signal can pass to output device
through 4O-SD, or other kinds of output cards.
BNC connectors are same with 4I-SD & 4O-SD’s.
2.2.9. 4I-TP & 4O-TP
Twisted pair card (HDMI/DVI extender). (Please check the specification from 5.2.9)
Support HDTV, compatible with HDMI1.3 and HDCP
4I-TP: input card, maximum input four HDMI TP signal. Input signal can pass to output
device through 4O-TP, or other kinds of output cards, need to work with TPHD402T.
4O-TP: output card, maximum output four HDMI TP signal, output signals from 4I-TP,
or other kinds of input cards, need to work with TPHD402R.
How the indicators work:
Color
Definition
Status
Yellow
Power Indicator
Blink once powered on;
Turn off when there is no power.
Green
Link Indicator
Light when the port is connected with
CAT5e/6;
Turn off when there is no connection.

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Pin layout of the HDBT connector:
Pin
Color
1
orange white
2
orange
3
green white
4
blue
5
blue white
6
green
7
brown white
8
brown
1st Group
4--5
2nd Group
1--2
3rd Group
3--6
4th Group
7--8
Note: Cable connectors MUST be metal one, and the shielded layer of cable MUST be
connected to the connector’s metal shell, to well share the grounding.
2.2.10. 4I-UH & 4O-UH
4K HDMI signal card. (Please check the specification from 5.2.10)
Support HDMI 1.4a& HDCP 1.4 compliance; Compatible with DVI signal; Support
high-definition HDMI source up to 4kx2k, 1080p 3D compliance;
Provide auxiliary audio port as supplement to HDMI embedded audio, audio source
selectable via command “AUDIO[X]I[Z].”, [X] stands for output port, [Z] stands for
audio source (0 is for HDMI embedded audio, 1 is for analog audio)
It also boasts embedded EDID management.
4I-UH: input card, maximum four input signal. Input signal can pass to output device
through 4O-UH, or other kinds of output cards.
Note: When matching with output cards that do not support 4kx2k, adjust the input
resolution to 1080p to enable reliable output.

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4O-UH: output card, maximum four output signal, output signals from 4I-UH, or other
kinds of input cards, HDCP compliant status settable via RS232 command
The HDMI connector is same with 4I-HD& 4O-HD’s.
2.2.11. 4I-UF & 4O-UF
4K optical signal card. (Please check the specification from 5.2.11)
Work with single-mode/ multi-mode module to realize long-distance optical fiber
transmission, support multi-mode transmission up to 300m and single mode
transmission up to 2km.
High bandwidth: 10.2Gbps; Compliant with HDMI 1.4, capable to transmit 4K×2K&
1080P 3D (max) signals;
4I-UF: input card with indicators, maximum four input signal, corresponding indicator
illuminates green when there is input signal. Input signal can pass to output device
through 4O-UF, or pass through other kinds of output cards.
4O-UF: output card with indicators, maximum four output signal, output signals from
4I-UF, or other kinds of input cards; corresponding indicator illuminates green when
there is output signal.
Note:
Use the 4I-UF/ 4O-UF with optical fiber transmitter/ receiver.
Multi-mode transmission may include the following cases:
Single-mode optical fiber module& Multi-mode optical fiber cable
Multi-mode optical fiber module& Multi-mode optical fiber cable