KanexPro HDMMX88-4K User manual

HDMMX88-4K Modular Matrix
Switcher
User Manual
All Rights Reserved
Version: HDMMX88-4K_2015V2.5

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
Preface
Read this user manual carefully before using this product. Pictures shown in this
manual is for reference only, different model 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 until August 2015. Any changes of
functions and parameters since then will be informed separately. Please refer to the
dealers for the latest details.
All product function is valid till 2015-8-3.
Trademarks
Product model, and logo are trademarks. Any other trademarks mentioned in this
manual are acknowledged as the properties of the trademark owner. No part of this
publication may be copied or reproduced without prior written consent.
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
SAFETY PRECAUTIONS
To ensure 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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
Contents
1. Introduction.................................................................................................................3
1.1. About Modular Matrix Switcher 8x8 (with Audio)...............................................3
1.2. Features ...........................................................................................................3
1.2.1. Modular Matrix Switcher signal card (changeable cards) .......................4
1.4 Package List......................................................................................................4
2. Panel Description........................................................................................................6
2.1. Modular Matrix Switcher 8x8 (with Audio).........................................................6
2.1.1. Front Panel.............................................................................................6
2.1.2. Rear Panel..............................................................................................7
2.2. Changeable Cards............................................................................................7
2.2.1. 4I-DV & 4O-DV.......................................................................................7
2.2.2. 4I-DS& 4O-DS........................................................................................9
2.2.3. 4I-HD & 4O-HD.....................................................................................10
2.2.4. 4I-HS & 4O-HS.....................................................................................11
2.2.5. 4I-VG & 4O-VG.....................................................................................11
2.2.6. 4I-VA.......................................................Error! Bookmark not defined.
2.2.7. 4I-SD & 4O-SD.....................................................................................13
2.2.8. 4I-SS ....................................................................................................14
2.2.9. 4I-TP & 4O-TP......................................................................................14
2.2.10. 4I-UH & 4O-UH...................................................................................15
2.2.11. 4I-UF & 4O-UF ...................................................................................16
2.2.12. 4I-BT & 4O-BT....................................................................................17
2.2.13. AU88 Stereo Audio (MMX88A Only)...................................................17
3. System Connection...................................................................................................19
3.1. Usage Precautions .........................................................................................19
3.2. Connection Diagram.......................................................................................19
3.3. Application......................................................................................................19
4. Control Operations....................................................................................................20
4.1. Front Panel Button control..............................................................................20
4.2. IR Remote control...........................................................................................21
4.3. RS232 Control................................................................................................21

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
4.3.1. Connection of RS232 Communication Port..........................................21
4.3.2. RS232 Communication Commands .....................................................22
4.4. TCP/IP Control (Optional)...............................................................................31
4.4.1. Control Modes......................................................................................31
4.4.2. Control Modular Matrix Switcher 8x8 (with Audio) via TCP/IP
communication software.................................................................................32
4.4.3. TCP/IP Configuration............................................................................33
5. Specification .............................................................................................................35
5.1. Main Unit ........................................................................................................35
5.2. Changeable Cards..........................................................................................35
5.2.1. 4I-DV & 4O-DV.....................................................................................35
5.2.2. 4I-DS & 4O-DS.....................................................................................36
5.2.3. 4I-HD & 4O-HD.....................................................................................36
5.2.4. 4I-HS & 4O-HS.....................................................................................37
5.2.5. 4I-VG & 4O-VG.....................................................................................37
5.2.6. 4I-VA.....................................................................................................38
5.2.7. 4I-SD & 4O-SD.....................................................................................38
5.2.8. 4I-SS ....................................................................................................39
5.2.9. 4I-TP & 4O-TP......................................................................................39
5.2.10. 4I-UH & 4O-UH...................................................................................39
5.2.11. 4I-UF & 4O-UF ...................................................................................40
5.2.12. 4I-BT & 4O-BT....................................................................................41
5.2.13. AU88 (Modular Matrix Switcher 8x8 (with Audio) Only) ......................42
6. Troubleshooting & Maintenance ...............................................................................43
7. After-sales Service....................................................................................................45

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
1. Introduction
1.1. About The HDMMX88-4K (with Audio)
The KanexPro HDMMX88A-4K is an eight input by eight output modular matrix switcher
chassis with two input slots and two output slots; each modular input or output card
supports up to four device connections. As an add-on to front panel control, the
HDMMX88A-4K can be controlled via IR, RS232, or TCP/IP connections.
The optional modular input cards include the following connections: HDMI, DVI, VGA,
HDBaseT (with RS232 and bi-directional wide-band IR), Fiber Optic and analog video
with digital scaling via HD15 (VGA-UXGA, RGBHV, RGBS, RGsB, RsGsBs, component
video, S-video and composite video). The modular output cards include the following
connections: HDMI, SDI, DVI, VGA, HDBaseT and Fiber Optic. Stereo audio embedding
is supported on the HDMI input cards to allow analog audio to be inserted into the digital
signal. Stereo audio can also be de-embedded using the HDMI or HDBaseT output
cards. Advanced EDID management restricts sources to output only stereo audio, while
emulating the native video data from the attached displays. This system allows analog
audio to be switched with the paired digital video, eliminating the requirement for an
additional audio matrix switcher.
1.2. Features
▪Customizable 8x8 modular switch serving various AV connections
▪4K UHD resolution via HDMI & HDBaseT
▪Supported connections: VGA, SDI, DVI, HDMI, HDBaseT & Fiber optic
▪High-bandwidth up to 10.2 Gbps
▪Add I/O modular cards based on expandability
▪Cross-point ultra-switching
▪Advanced HDCP & EDID management
▪Hot swappable design
▪Clear illuminated buttons
▪Control via IR, Ethernet & RS-232
▪10 global presets
▪Front panel LCD for switching & status
▪Front panel security lock

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
▪2U rack-mountable aluminum enclosure
▪Dual-Internal power supply (100Volt~240Volt AC, 50/60Hz)
1.2.1. Modular Matrix Switcher signal card (changeable cards)
Modular Matrix Switcher 8x8 (with Audio) 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 Modular Matrix Switcher 8x8 (with Audio)
1 x Power Cord
1 x IR remote (Not include battery)
4 x Plastic cushions

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
1 x RS232 cable
1 x User manual
Notes: Confirm all the accessories are included, if not, please contact with the
dealers.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
2. Panel Description
2.1. Modular Matrix Switcher 8x8 (with Audio)
2.1.1. Front Panel
Figure 2- 1 Front Panel of Modular Matrix Switcher 8x8 (with Audio)
No.
Name
Description
①
IR
IR sensor, receive IR signal sent from IR remote
②
Power
indicator
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& audio signal from
audio card synchronously
VIDEO: Transfer AV signal from AV signal card only
AUDIO: Transfer audio signal from audio card only
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
2.1.2. Rear Panel
Figure 2- 2 Rear Panel of Modular Matrix Switcher 8x8 (with Audio)
No.
Name
Description
①
INPUTS
Audio input slot
②
OUTPUTS
Audio output slot
③
INPUTS
Input signal card slots, 2 in total, insert necessary input cards here
④
OUTPUTS
Output signal card slots, 2 in total, insert necessary output cards
here
⑤
Power port
Connect with household alternating current power
⑥
RS232
Serial control port; connect with RS232 port of control device.
⑦
GND
connector
Used for system grounding
⑧
TCP/IP
(Optional) Used for TCP/IP control port
2.2. Changeable Cards
Modular Matrix Switcher 8x8 (with Audio) support expansion through various
changeable input/ output cards of different signals including DVI, HDMI, VGA, and
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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+
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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:
1. 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.
2. Before using 4O-DS, upgrade the front-board and backboard of MMX88A. Seek
technical assistant from our technical supporters.
3. 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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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.
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

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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 embedded audio and auxiliary stereo audio supports PCM format, audio source
selectable via designed command (default: HDMI embedded 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.
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 specs 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,

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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.
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
VGA- C-VIDEO:
Pin
Signal
Pin
Signal
1
RED
6
GND
7
GND
8
GND
Other pins are not used.
2.2.6. MOD-IN-VGA
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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
The BNC connector is shown as the figure below.
Sleeve ( )
Tip (+)
BNC Connector
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 HDBT
Transmitters.
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 HDBT Receivers.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
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.
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
Notice: 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.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
Note: When matching with output cards that do not support 4kx2k, adjust the input
resolution to 1080p to enable reliable output.
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 1km.
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, and 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:
1. Use the 4I-UF/ 4O-UF with optical fiber transmitter/ receiver.

KanexPro HDMMX88-4K Series Modular Matrix Switcher (with Audio)
2. 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
3. Before using 4I-UF & 4O-UF, upgrade the front-board and backboard of MMX88A.
Seek technical assistant from our technical supporters.
2.2.12. 4I-BT & 4O-BT
4K Twisted pair card (Please check the specification from 5.2.12)
Support HDTV, compatible with HDBT 1.0, HDMI1.4a& HDCP1.4; Wide resolution
range from 480p~ 4kx2k, 1080p 3D compliant; Extend HDBT signal up to 70m at
1080p or 40m at 4k; Bi-directional RS232 transmission on single cable; Audio source
selectable via corresponding command;Auxiliary audio ports support stereo signal.
It also boasts embedded EDID management.
4I-BT: input card, maximum input four HDBT signal. Input signal can pass to output
device through 4O-BT, or other kinds of output cards, need to work with HDBT
transmitters.
Note: When matching with output cards that do not support 4kx2k, adjust the input
resolution to 1080p to enable reliable output.
4O-BT: output card, maximum output four HDBT signal, output signals from 4I-BT, or
other kinds of input cards, need to work with HDBT receivers.
The indicators and pin layout is the same with 4I-TP & 4O-TP’s. Refer to 2.2.9 4I-TP &
4O-TP for detailed information.
2.2.13. AU88 Stereo Audio (MMX88A Only)
8x8 stereo audio cross point switching card. (Please check the specification from
5.2.13)
It supports the balanced/unbalanced audio, by different connection.
It is not a hot plug card, fixed on the chassis.