Avlink BAX-3088 User Manual

User Manual

BAX-3044 BAX-3084

BAX-3088

BAX Series Matrix Switching Systems

BAX Matrix Switching Systems—User Manual

Before You Use the System

1、Read manual——Carefully read the manual before you use the system.
2、Installation environment——The system should be installed indoor only. Install either on a

sturdy rack or desk in a well-ventilated place.

3、Lightning——Unplug the power cord during lightning or after a prolonged period of non-use

to avoid damage to the equipment.

4、Maintenance——Only qualified technical engineers or specified distributors are permitted to

repair or replace components and parts of the equipment upon failure.

1

BAX Matrix Switching Systems—User Manual

Table of Contents

1.0 Matrix System Overview…………………………………….……………………………4

1.0.1 BAX Matrix System………………………………………………………………..…4

1.0.2 BAX Matrix System Packing…………………………………………………….…...4

2.0 BAX Matrix Host Installation……………………………………………………….…….5

3.0 BAX Matrix System Models…………………………………………………………........6

4.0 Matrix System Front and Rear Panels………………………………………………….….6

4.0.1 BAX-3044 Front and Rear Panels.................................................................................6

4.0.2 BAX-3084 Front and Rear Panels………………………………………………….....7

4.0.3 BAX-3088 Front and Rear Panels……………………………………………….........8

5.0 BAX Matrix System and Perpherals Connection……………………………………..…...8

5.0.1 Input/Output Ports…………………………………………………………………….9

5.0.1.1 RGBHV Connecting Cable…………………………………………..…………..9

5.0.1.2 Audio Connecting Cable……………………………………………………..…...9

5.0.2 BAX Matrix System and Control Computer Connection……………………………10

5.0.3 Remote Control and Settings………………………………………………………...11

5.0.3.1 RS-232 Communication Port and Connection……………………………..…...11

5.0.3.2 RS-485 Communication Port…………………………………………………...13

5.0.3.3 On/Off Switch Settings…………………………………………………………13

5.0.3.4 BAX Matrix System and Control System Connection…………………………15

6.0 Matrix System Control Panel Operation…………………………………………………17

6.0.1 Input/Output Switching Key Operating Mode……………………………………....17

6.0.2 Front Panel Key Function…………………………………………………………...17

6.0.3 Operation Examples…………………………………………………………………19

7.0 Matrix Application Software……………………………………………………………..21

7.0.1 Software Introduction…………………………………………………………..……21

7.0.1.1 Software Description……………………………………………………………21

7.0.1.2 Software Activation…………………………………………………………......22

7.0.2 Software Features……………………………………………………………………22

7.0.2.1 Main Operating Interface Features……………………………………………...22

7.0.2.2 Disconnect Function Key………………………………………………….........24

7.0.2.3 Select all output、DeSelect all output Switching Function Usage…………......25

7.0.2.4 Disconnect all Command……………………………………………………….25

7.0.2.5 Memory Function Usage……………………………………………………......26

7.0.2.6 Scan Function Usage……………………………………………………………26

7.0.2.7 Options Function Applications…………………………………………….........26

7.0.2.8 Exit Function Applications……………………………………………………...27

7.0.2.9 Other Applications……………………………………………………………....27

2

BAX Matrix Switching Systems—User Manual

8.0 Communication Protocol and Control Command Code………………………………..27

9.0 BAX Matrix System Technical Parameters…………………………………………….28

10.0 Common Problems and Solutions…………………………………………………….29

3

BAX Matrix Switching Systems—User Manual

1.0 Matrix System Overview

1.0.1 BAX Matrix System

The BAX Matrix switcher is a high performance switching equipment for audio/video
frequencies. It is used for multiple input/output cross switching of audio/video signals. It
provides independent RGBHV component and audio input/output terminals. Each RGBHV
component signal and audio signal is transmitted separately and switched separately, thereby
minimizing signal attenuation and ensuring high definition graphics and high fidelity signal
output.

The BAX Matrix is used mainly in TV broadcasting projects, multi-media conference halls,
large display projects, TV teaching and command control centers. It boasts features of power
interruption protection during power surge, LCD display and synchronous and separate video
switching functions. Its RS-232 and RS-485 communication ports enable convenient
communication with remote control equipment. This manual describes using of the BAX-3088
model. Refer to the BAX-3088 User Manual for using of other models of matrix systems.

Figure 1-1 BAX-3088 Matrix

1.0.2 BAX Matrix System Packing

BAX Matrix Host

4

BAX Matrix Switching Systems—User Manual

RS-232 Communication Connection Cable

Power Cord

BAX Matrix Testing and Application Software CD

User Manual

Green T erm inal（M）
BAX-3044 10 Pcs
BAX-3084 14 Pcs
BAX-3088 18 Pcs

Quantity

2.0 BAX Matrix Host Installation

The BAX Series Matrix Host has a black metallic housing. It can be placed on a sturdy desk

or installed on a 19-in rack. See Figure 2-1 below:

Figure 2-1 Installing the BAX Matrix Host on a Standard Rack

5

BAX Matrix Switching Systems—User Manual

3.0 BAX Matrix System Models

The BAX Series Matrix has following models to meet different requirements of different
users:

Technical
Parameters
Model

BAX-3044 4 4 4 4 √ √
BAX-3084 8 4 8 4 √ √
BAX-3088 8 8 8 8 √ √

Video

Input Port

Video

Output

Port

Audio

Input Port

Audio

Output

Port

RS-485

Connector

4.0 Matrix System Front and Rear Panels

4.0.1 BAX-3044 Front and Rear Panels

RS-232

Connector

Figure 4-1 BAX-3044 Front Panel

Figure 4-2 BAX-3044 Rear Panel

6

BAX Matrix Switching Systems—User Manual

4.0.2 BAX-3084 Front and Rear Panels

Figure 4-3 BAX-3084 Front Panel

Figure 4-4 BAX-3084 Rear Panel

4.0.3 BAX-3088 Front and Rear Panels

Figure 4-5 BAX-3088 Front Panel

7

BAX Matrix Switching Systems—User Manual

Figure 4-6 BAX-3088 Rear Panel

5.0 BAX Matrix System and Peripherals Connection

Figure 5-1 BAX Matrix System Connection

8

BAX Matrix Switching Systems—User Manual

5.0.1 Input/Output Jacks

Referring to the different models, the video signal input/output jacks are formed by the 4th
row and 8th row BNC female connectors. The audio input/output conectors are formed by the
4th and 8th row 5-phase 3.8mm connection terminals. The BAX-3088 video signal
input/output jack channels are numbered from left to right as NO.1 to NO.8 (in two rows). The
connectors are indicated from upper to lower as R, G, B, H, and V signal terminals. The audio
signal input/output channels are numbered NO.1 to NO.8 from left to right. Refer to the drawing
on the housing for other types of connectors.

Different models of BAX matrix systems provide a different number of input/output
connectors where users can connect to different Audio/video equipment including CD/DVD
players, graphics workstations, and number display. The output connectors can be connected to
projectors, video recorders, displays and multiplexers.

5.0.1.1 RGBHV Conencting Cable

The BAX matrix supports various types of AV video frequencies and VGA signal sources.
The AV signal source equipment must have RGBHV signal output terminals; the VGA signal
source must have RGBHV signal output terminals.

The BAX matrix BNC connector connection is shown in Figure 5-2 below:

Figure 5-2 BNC Connection

If the VGA signal source equipment has no RGBHV output terminal, you are recommended
to use a VGA-RGB converter to get high quality RGB output signals.

Pleas use a 5-wire RGB signal cable for connection to input/output equipment. Connect the
R (Red), G (Green), B (Blue), H (Horizontal sync) and V (Vertical sync) BNC connectors of the
signal source equipment output terminal separately to the same channel RGBHV connectors of
the BAX matrix inputs. Also, connect the RGBHV connectors of the BAX matrix outputs to the
RGBHV input connectors of the output equipment through a 5-wire RGB signal cable.

NOTE: The RGBHV connectors at both ends of the signal cable must correspond to each
other, otherwise loss of color reproduction and even no signal output could happen.

5.0.1.2 Audio Connecting Cable

Compared to the video connecting cable, the audio connecting cable has two different ways
of connection: the balanced and the unbalanced connection.

The “Audio Inputs” and “Audio Outputs” connectors of the BAX matrix are for connection
to the video players audio signal and multiplexers.

9

BAX Matrix Switching Systems—User Manual

Balanced connection is a connection method of using two signal wires to transmit a pair of
balanced signals. Since interference to two signal wires are similar and out of phase the
interfering signals are cancel out.The lower audio frequencies are susceptible to interference in
long distrance transmission. Therefore, balanced connection is a way to counter interference
commonly used in professional audio equipment. In household appliances, two-wire cable with
sleeve is sometimes used. However, they are used for the left and right audio signal channels and
do not belong to balanced connection.

Unbalanced connection uses only one signal cable for connection is susceptible to
interference. Most household appliances and not-so-demanding audio equipment uses
unbalanced connection.

A specific connection of the audio signal cable is given below:

1. Unbalanced connection: The “G” leg connects to the Sleeve, and the “+” leg connected to

the red wire (TIP) while the “-“ leg connects to the “G” leg.

2. Balanced connection: The “G” leg connects to the Sleeve, and the “-“ leg connects to the

black wire (RING) while the “+” leg connects to the red wire (TIP). Refer to Figure 5-3 below:

Figure 5-3 5-Phase 3.8mm Audio Connecting Socket Cable（Balanced/Unbalanced Connection）

To select balanced or unbablanced connection is often depended on the connectors of the
equipment. Use balanced connection as far as possible. Refer to the User Manual prior to
connection. Occasionally, you will have to connect balanced connectors of one piece of
equipment to unbalanced connectors of another equipment. In most cases, you can use
unbalanced connection at the balanced end if quality is not so demanding. If you are demanding
for audio quality, you must use a balun to convert a signal from balanced to unbalanced, or vice
versa.

5.0.2 BAX Matrix System and Control Computer Connection

Use the RS-232 connecting cable to connect the computer serial port (COM1 or COM2) to
the RS-232 communication port of the BAX matrix host. The computer can then be used to
control the BAX matrix after installation of application software.

Figure 5-4 BAX Matrix and Computer Connection

10

BAX Matrix Switching Systems—User Manual

5.0.3 Remote Control and Settings

The BAX matrix provides standard RS-232 and RS-485 serial communication ports. Aside
from using the front panel keys for switching operation, you are also permitted to use the RS-232
and RS-485 serial communication ports for remote operation. It also supports RS-485 serial
control.

5.0.3.1 RS-232 Communication Port and Connection

The RS-232 port is a 9-pin female connector. The Leg functions are shown in the table
below:

Pin No. Leg Description

1 N/u Null

2 Tx Send

3 Rx Receive

4 N/u Null

5 Gnd Ground

6 N/u Null

7 N/u Null

8 N/u Null

9 N/u Null

Figure 5-5

11

BAX Matrix Switching Systems—User Manual

Figure 5-5（a）

Figure 5-6

Note: The Matrix RS-232 port is defined as DCE.

12

BAX Matrix Switching Systems—User Manual

5.0.3.2 RS-485 Communication Port

You can use the RS-485 port to control more than one BAX product.

The RS-485 Port as shown in Figure 5-7 below:

Figure 5-7

5.0.3.3 On/Off Switch Settings

Figure 5-8

A. DIP SW-8:RS-232/RS-485 switches ON/OFF

ON:RS-232 Enables Single System or RS-485 Serial Master

OFF:RS-485 Enables RS-485 Serial Slave

B. DIP sw-6/7:RS-485 Terminator ON/OFF
ON:Terminator ON
OFF:Terminator OFF

C. DIP sw 1 to 5 Setting（address setting）

The ID address determines the position of a BAX Matrix system. When multiple BAX
products are connected to one PC or when the Matrix products are serially connected, the ID
address decides which BAX product is to be controlled. Use the on/off switches 1, 2, 3, 4, 5 on
the rear panel to set the ID address as shown in Figure 5-2 below:

13

BAX Matrix Switching Systems—User Manual

On/Off Switching Positions ID Address

SW1 SW2 SW3 SW4 SW5

（Decimal）

Software ID

Address

On/Off

（Binary）

（Hexadecimal）

0 00 00000 OFF OFF OFF OFF OFF
1 01 00001 OFF OFF OFF OFF ON
2 02 00010 OFF OFF OFF ON OFF
3 03 00011 OFF OFF OFF ON ON
4 04 00100 OFF OFF ON OFF OFF
5 05 00101 OFF OFF ON OFF ON
6 06 00110 OFF OFF ON ON OFF
7 07 00111 OFF OFF ON ON ON
8 08 01000 OFF ON OFF OFF OFF

9 09 01001 OFF ON OFF OFF ON
10 0A 01010 OFF ON OFF ON OFF
11 0B 01011 OFF ON OFF ON ON
12 0C 01100 OFF ON ON OFF OFF
13 0D 01101 OFF ON ON OFF ON
14 0E 01110 OFF ON ON ON OFF
15 0F 01111 OFF ON ON ON ON
16 10 10000 ON OFF OFF OFF OFF
17 11 10001 ON OFF OFF OFF ON
18 12 10010 ON OFF OFF ON OFF
19 13 10011 ON OFF OFF ON ON
20 14 10100 ON OFF ON OFF OFF
21 15 10101 ON OFF ON OFF ON
22 16 10110 ON OFF ON ON OFF
23 17 10111 ON OFF ON ON ON
24 18 11000 ON ON OFF OFF OFF
25 19 11001 ON ON OFF OFF ON
26 1A 11010 ON ON OFF ON OFF
27 1B 11011 ON ON OFF ON ON
28 1C 11100 ON ON ON OFF OFF
29 1D 11101 ON ON ON OFF ON
30 1E 11110 ON ON ON ON OFF
31 1F 11111 ON ON ON ON ON

Figure 5-2 ID Number Setting Table

14

BAX Matrix Switching Systems—User Manual

5.0.3.4 BAX Matrix System and Control System Connection

A. If your PC provides RS-232，please follow connection as shown in Figure 5-9 below:

Figure 5-9

NOTE: 1. RS-232 connection refer to previous Figure for operation；

2. RS-232 or RS-485 baud rates: 9600bps, no odd or even calibration address，8bit data
transmission address，1bit stop address（96，N，8，1）；

3. Serial connection between Matrix RS-485 as follows:

TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）

4. Each DIP sw1-5 address must not set to same ID number.

15

BAX Matrix Switching Systems—User Manual

B. If your PC provides RS-485，please follow conection as shown in Figure 5-10 below:

Figure 5-10

NOTE: 1. RS-485 baud rate: 9600bps, no odd or even calibration address，8bit data transmission

address，1bit stop address（96，N，8，1）；

2. Connect your PC RS-485 port to the Matrix RS-485 port as follows:

TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）

3. Serial connection between Matrix RS-485 ports as shown below:
TX（+） TX（+）
TX（-） TX（-）
RX（+） RX（+）
RX（-） RX（-）

4. Each DIP sw1-5 address must not set to same ID number.

16

BAX Matrix Switching Systems—User Manual

6.0 Matrix System Control Panel Operation

6.0.1 Input/Output Switching Key Operating Mode

Fast audio/video switching of the Matrix systems can be done by pressing keys on the front
panel (refer to the “Front Panel Key Pressing Instructions” for detail key pressing.)
Operation methods as follows:
“Switching Method＂+“Output Channel＂+“Input Channel＂
Follow instructions below:
“Switching Method＂
For synchronous audio/video switching or alternative switching, select “Synchronous
Audo/Video Switching,” “Audio Switching” or “Video Switching” as per “Audio” and “Video”
keys.
“Output Channel＂
The “OUT Row 1-8” keys on the front panel represent output channels 1 to 8 for connection to
peripheral display equipment.
“Input Channel＂
The “IN Row 1-8” keys on the front panel represent input channels 1 to 8 for connection to the
currently connected channels of the signal source to be switched.

6.0.2 Front Panel Key Functions

Part Function Key Function

1

2 Output channel selection keys used for setting

3 Input channel selection keys used for setting audio/video

LCD display shows current BAX matrix status and
operation hints.

audio/video output channels or for selection of Status
Retrieve or Stored Number.

output channels or for selection of Status Retrieve or
stored Number.

4

ALL

Implement all output selection keys via certain input
route.

---Example: First press the “ALL” key, then select the
input channel to output to all output channels; first press
the “ALL”key, then press the “OFF”key to close all the
presently displayed swtitching status.

17

BAX Matrix Switching Systems—User Manual

Part Function Key Function

5

6

7

8

OFF

Close output channel key.

---First press to close the output channels, then press the
“OFF” key to close the specified channel.

STO

The “Reserve Key” saves all current input/output
corresponding relations.

---Example: Press the “STO”key, then press the output
channel key which you want to save to save all currently
displayed input/output corresponding relations.

RCL

The “Retrieve Key” retrieves the saved input/output
corresponding relations.

---Example: First press the “RCL” key, then press the
previously saved output channel key to retrieve the saved
input/output status and implement this status switching.

AUDIO

The audio switching selection key switches to another
output channel from the same channel.
Example: Press the Audio key to open or close the Audio
switching function. When the LED indicator to the left
of the Audio key lights shows switching function is open
and when the light goes off shows you have selected to
close the audio switching function.

9

VIDEO

The video switching selection key switches to another
output channel from the same channel.
Example 1: Press the Video key to open or close the
video switching function. When the LED indicator to the
left of the Vedio key shows video switching function is
open and when the light goes off shows the switching
function is close.

18

BAX Matrix Switching Systems—User Manual

6.0.3 Operation Examples

Examle 1: Synchronously switch the NO. 1 audio/video signal to the NO. 3 and 4 output
channels.

Key LCD Display Operation

1. Press the NO. 3 key of the
output channel for 2
seconds, then enter the input
channel when the red 0 on
LCD begins to flicker.

2.Press the NO.1 key of the
Input channel for 2 seconds
for selection of NO.1
channel to input into NO.3
channel for output. The LCD
shows 1 at channel NO.3
for both Audio and Video.
Enter the Output channel.

3. Press the NO.4 key of the
output channel for 2 seconds
and then enter the input
channel when the red 0 on
LCD flickers.

4. Press the NO.1 key of the
input channel for 2 seconds
for selection of NO.1
channel for input and NO. 3
and 4 channels for output.
LCD shows 1 at NO.3 and
NO.4 channels for both
Audio and Video.

19

BAX Matrix Switching Systems—User Manual

Example 2: Synchronously switch the NO. 4 video signal to the NO. 1, 3, 5, 6 output channels.

Key LCD Display Operation

1. Press the AUDIO key to
turn off the LED indicator,
then enter the output channel.

2. Press the NO.1 key of the
output channel for 2 seconds,
then enter the input channel
when the red 0 on LCD
flickers.

3. Press the NO.4 key of the
input channel for 2 seconds to
select operation of input from
NO.4 channel and output from
NO.1 channel. Enter the output
channel when VIDEO shows 4
at NO.1 channel on LCD.

4.Press the NO.3 key of the
output channel for 2 seconds
and enter the input channel
when the red 0 on LCD
flickers.

5.Press the NO.4 key of the
input channel for 2 seconds to
select operation of input from
NO.4 channel and output from
NO.1 and NO.3 channels.
Enter the output channel when
VIDEO shows “4” at NO.1
and NO.3 channels on LCD.

7.Press the NO.4 key of the
input channel for 2 seconds to
select operation of input from
NO.4 channel and output from
NO.1, 3 and 5 channels. Enter
the output channel when
VIDEO shows “4” at NO.1, 3
and 5 channels on LCD.

20

BAX Matrix Switching Systems—User Manual

Key LCD Display Operation

7. Press the NO. 4 key of the
input channel for 2 seconds to
select operation of previously
set NO. 4 channel to NO. 1, 3,
5 channels for output. Enter
the output channel when
VIDEO shows input channel
NO. 4 on NO. 1, 3 and 5
channels on the LCD.

8. Press the NO.6 key of the
output channel for 2 seconds
and enter the input channel
when the red 0 on LCD
flickers.

9. Press the NO.4 key of the
input channel for 2 seconds to
select the operation of input
from NO.4 channel and output
from NO.1, 3, 5 and 6
channels. VIDEO shows “4” at
NO.1,3, 5 and 6 channels on
LCD.

7.0 Matrix Application Software

7.0.1 Software Introduction

The 《AV Matrix》 Matrix control software applies to different input/output matrixes.

7.0.1.1 Software Description

The《AV Matrix》 matrix testing software is an application tool developed for matrix testing
and application. The software operation environment is as follows:
Window98/2000/NT/XP operatng systems
32M interal memory or above
10M hard disk space or above
CD-ROM
At least one serial communicatin port

21

BAX Matrix Switching Systems—User Manual

7.0.1.2 Software Activation

First, you must turn off power both to the BAX matrix and to the computer. Then, connect the
matrix RS-232 port to the PC RS-232 port using the bundled communication cable. (Refer to the
previous section “BAX Matrix and Control Computer Connection.”;

Turn on power to the BAX matrix and the computer:

Activate the AV Matrix.exe on the bundled CD-ROM in the control computer to enter the
control software interface.

7.0.2 Software Features

The software controls signal connection between the corresponding input port and output port
as required. The main operation window is shown in Figure 7-1 below:

Figure 7-1 《AV Matrix》 Control Software Usage Interface

Scroll on the left lower corner to view contents as shown below.

7.0.2.1 Main Operation Interface Features

Refer to the window menu above, the interface blue area shows crossing matrix of output
ports 01-08 and input ports of 01-08. On the lower right hand corner, you can select either
“Video” for signal input switching or “Disconnect”to close all output ports. Click to check the
white box to the left of “Video” or “Audio” for video or audio signal transimission.

22

BAX Matrix Switching Systems—User Manual

Examples for Selecting Matrix Switching Functions:
Example 1: Now there is a BAX-3088 matrix having all the input/output ports properly

connected to the equipment. There are two ways of operation if you want to set channel 1
audio/video to channels 2, 3 and 5 for output and channel 3 audio/video to channel 6 for output:

First way: Make sure you have selected“Video＂、“Audio＂ by checking the white boxes

to the left. Directly click on the corresponding icons on the matrix to turn them into
to complete the switching operation.

Second way:
Step 1: Make sure you have selected “Video” and “Audio” by checking the boxes to the left.

Step 2: First select the “Output”number keys 02, 03 and 05 to the right, and select the “Input”
number key 01 to the bottom. Afterwards, press consecutively the previously selected “Output”
number keys 02, 03 and 05 (or you can press the “Deselect all output” key). This way, you have
selected “Input” 01 and “Output” 02, 03 and 05 switching.

Step 3: First select the “Output” number key 06 to the right, and select the “Input” number

key 03 to the bottom. Afterwards, press the previously selected “Output” number key 06 (or you
can press the “Deselect all output” key). This way, you have selected Input 03 and Output 06
switching.

Upon completion of the above 3 steps, you have actually completed the switching operation of
having Audio/Video channel 1 to Output channels 2, 3 and 5 while at the same time successfully
switched from Audio/Video channel 3 to Output channel 6.

Example 2: Now, there is a BAX-3088 matrix with the input/output ports properly connected
to the equipment. It is required to set the input/output connectors to switching from audio/video
channel 1 to output channels NO.1, 6 and 7 and also to switch from audio/video channel 2 to
output channel 8. There are two ways of operations:

First Way:

Step 1: Make sure you have selected “Video” and not “AUDIO”. Directly click on the icons

on the matrix corresponding to the INPUT number key 01 and the OUTPUT number keys 01、

06、07 to turn into ，you have then selected video switching of input 01 and output
01,06,07.

Step 2: Make sure you have selected “AUDIO” and not “Video”. Directly click on the matrix

icons corresponding to INPUT number key 02 and OUTPUT number key 08 to turn them

into

，you have then selected audio switching of input 02 and output 08.

Upon completion of the above 2 steps, you have successfully switched audio/video channel 1
to output channels 1, 6 and 7 and also switched audio channel 2 to output channel 8.

23

BAX Matrix Switching Systems—User Manual

Second Way:

Step 1: Make sure you have selected “Video” and not “AUDIO”.

Step 2: Select the output number keys 01,06 and 07 to the right and input number key 01to the

bottom. Afterwards, press consecutively the previously pressed output number keys 01,06 and 07
to the right (or you can press the Deselect all output key). This way, you have selected video
switching of input 01 to output 01,06 and 07.

Step 3: Make sure you have selected “AUDIO”and not “Video”.

Step 4: Select output number key 08 to the right and input number key 02 to the bottom.

Afterwards, press again the previously-pressed output number key to the right（or you can
press the Deselect all output key）. This way, you have selected audio switching of input 02 and
output 08.

Upon completion of the above 4 steps, you have completed the operation of switching video
channel 1 to output channel 1, 6, and 7 while also switching audio channel 2 to output channel 8.

7.0.2.2 Disconnect Function Key

Close all the unused output ports.

A specific example of operation is described below:

The present input and output relations are shown in Figure 7-2 below:

Figure 7-2

Now, you have to close the output ports 03、05、and 06.

Step 1: First press down the output number keys 03, 05 and 06 to the right;

Step 2: Press the “Disconnect” key;

24

BAX Matrix Switching Systems—User Manual

Step 3: Press the previously-pressed output number keys 03, 05 and 06 (or press the
“Deselect all output” key) to complete the operation.

The final results will be as shown in Figure 7-3 below:

Figure 7-3

7.0.2.3 Select all output, DeSelect all output Switching Functions Useage

（1）Select all output Function Description: You can use this function to select one port for input
and all output ports for output.

A specific example of operation is described below:

Example: Now, you have a BAX-3088 matrix with all input and output ports properly
connected to the equipment. The needed input/output ports should be set to audio/video channel
1 while switching all output ports to output.

Make sure you have selected both “Video” and “Audio” by checking the boxes to the left.
Then, press the Select all output key and select the input number key 01. Click on the matrix

icons along the 01 row to turn them into complete the command operation.

（2）DeSelect all output Functin Description: It is used to close the Select all output function.

7.0.2.4 Disconnect all Command

Function Description: To close all the switching methods.

Press the “Disconnect all” key to close connection to all input and output ports.

25

BAX Matrix Switching Systems—User Manual

7.0.2.5 Memory Function Usage

Function Description: To store and retrieve.

Store Functin Description: The Store Function saves all the present input/output switching

relations to any Locations from #1 to #8 you desired.

A specific example of the Store Function is described below:

Stores all the present input/output switching relations to Location #1. First, select Location
#1，as shown in the figure below:

， then click the save key to save all the

present input/output switching relations to Location #1.

Retrieve Function Description: To retrieve the saved input/output switching relations.

A specific example of the Retrieve Function is described below:

To retrieve the input/output corresponding relations saved in Location #1. First, select
Location #1 as shown in the figure below:

, then click the Load key to retrieve all the

input/output corresponding relations stored in Location #1.

7.0.2.6 Scan Function Usage

Use the mouse to click the Scan key to refresh the AV Matrix operating interface.

7.0.2.7 Options Function Applications

Activation Function:

In the main menu, select Options to prop up the Options window as shown in Figure 7-4（a）

26

BAX Matrix Switching Systems—User Manual

Figure 7-4（a） Figure 7-4（b）

Function Description:

Linking Methods: In “ ” select either COM1 port or COM2 port as shown in
Figure 7-4（b）; in “ ” select 9600 for signal transmission as shown in Figure 7-4（a）

7.0.2.8 Exit Function Applications

Function Description: To exit the operating software.

7.0.2.9 Other Applications

Displays the presently saved switching status as shown in Figure 7-5 below:

Figure 7-5

When Video/Audio corresponding to Output is open, it shows the Output ports
corresponds to the Video/Audio Input ports; when they are close the word None will be shown in
red in the above table.

8.0 Communication Protocol and Control Command Code

Communication Protocol: Baud rate 9600bps, no odd or even calibration bit address, 8bit

transmission address, 1bit stop address.

Refer to the “Command list.pdf” on the CD-ROM for the command system.

27

BAX Matrix Switching Systems—User Manual

9.0 BAX Matrix System Technical Parameters

Model

BAX-3088 BAX-3084 BAX-3044
Technical Parameters
Video
Enhancement 0dB
Bandwidth
Max. Transmission

250MHz (-3dB)，Full Load

20nS(±1nS)
Delay
Switching Speed 50nS(Longest Time)
Signal T ype

RGBHV，RGBS，RGsB，RsGsBs，Composite V ideo
Video Input
Connectors 8 BNC Female

Connectors

8 BNC Female
Connectors

4 BNC Female
Connectors

Signal Strength 1Vp-p Y Component Video;0.7Vp-p RGB(Computer

Signal);0.3Vp-p R-Y & B-Y Component Video
Min./Max. Voltage Modulated Signal 0.5V~2.0Vp-p
Impedance

75Ω
Video Output
Connectors 8 BNC Female

Connectors

4 BNC Female
Connectors

4 BNC Female

Connectors
Min./Max. Voltage 2.5Vp-p
Impedance

75Ω
Synchronous Signals
Input/Output

RGBHV，RGBS，RGsB，RsGsBs
Signal T ypes
Input Voltage 0.5V-5.0Vp-p,:4.0Vp-p normal
Output Voltage AGC-TTL: 5Vp-p,unterminated
Input Impedance
Output Impedance
Polarity

510Ω

75Ω

Positive or Negative（identical with input）
Audio Signal
Input/Output Connectors 5-Phase 3.8mm Connector with bolt and nut
Signal Type Stereo, Balanced and Unbalanced Connection
Impedance

Max. Input Level

Input: 〉10kΩ（Balanced / Unbalanced Connection）

Output: 50 Ω（Unbalanced Connection），100Ω（Balanced

Connection）

+22dBu（Balanced or Unbalanced Connection）

28

BAX Matrix Switching Systems—User Manual

Model
Technical Parameters
Max. Output Level
Control T ypes
Serial Control Connectors
Baud Rate and Protocol 9600bps, no odd or even calibration address, 8bit

Serial Control Port Structure
Control Procedures
Specifications
Power
Temperature
Humidity Storage, Usage Humidity: 10%~90%
Housing Measurements 485(L)X286(W)X140mm(H)
Product Weight 6250g
Media Faiure Interval

BAX-3088 BAX-3084 BAX-3044

+22dBu（Balanced or Unbalanced Connection）

RS-232，9-Pin Female D Type Connector

transmission address, 1bit stop address
TX，RX，GND
《AV Matrix》

100VAC~240VAC,50/60Hz，International Auto-Switch Power
Storage, Operating Temp.: -40℃~+85℃

30，000 Hours

Warranty One year warranty, lifetime maintenance

10.0 Common Problems and Solutions

1. What to do if the BAX matrix front panel keys switching not responsive?
Answer: The BAX matrix front panel keys employ scanning testing and require longer response

time. Press the keys for 2 seconds and then release. This way, key switching will be
responsive in operation.

2. What to do if matrix does not display or color display is abnormal after hot plug?
Answer: Switching of the matrix system goes through the IC chips. If the voltage difference

between the input signal equipment and the matrix equipment is too large, hot plug
could easily cause damage to the IC chips. Please turn off power to the system before
plugging or unplugging.

3. What to do if ghosting happens when RGB signals output to display?
Answer: Ghosting is often caused either by the projector, inferior cable quality or long

transmission distance. You are advised to adjust the projector or replace with better
quality cable.

4. What to do if loss of color reproduction happens or no video signal output?
Answer: Please check if connectors at both ends of the RGBHV signal cable are correctly

connected.

5. What to do if the serial port (usually refer to the computer serial port) fails to control the BAX
matrix?

29

BAX Matrix Switching Systems—User Manual

Answer: Check that the communication port set by the control software is correctly connected to

the corresponding serial port of the equipment. Also, check if the computer
communication port is in good order.

6. What to do if the corresponding graphics fail to output during BAX matrix switching?
Answer: (1) Check if there is signal on the input end. If there is no input signal, it could be that

the input connection cable is broken or the connector gets loosen. You are advised to
replace the connection cable.

(2) Check if there is signal on the output end. If there is no output signal, it could be that

the cable is broken or the connector gets loosen. You are advised to replace the

connection cable.
(3) Check if the output port number is the same as the controlled port number.
(4) If none of the above circumstances happen, it could be internal failure of the product

itself. You must send for repair by qualified technical engineers.

7. What to do if the power LED is not on, LCD has no display and no response in operation?
Answer: Check if the equipment power input is in good contact.

8. What to do if you sensed power leakage during plugging or unplugging of the audio/video
ports?
Answer: It could be that the equipment power is not properly grounded. You must properly

ground your equipment, otherwise product life can easily be shortened.

9. What to do if the LCD displays normally and the communication port has return code but no
graphics output or audio output?
Answer: (1) It could be that the audio/video connectors got loosen. Simply replace the

connectors.
(2) It could be the connection cable short-circuited. Simply replace the cable.
(3) It could be the connection cable is broken. Simply replace the cable.

10. What to do if the BAX matrix panel keys and communication ports are out of order?
Answer: Check if the equipment power input is in good contact and the computer

communication ports are in good order. If yes, it could be some internal failure of the

product, please send for repair by qualified technical engineer.

11. What to do if operation and function failure occurred?
Answer: Check if the equipment and the matrix system are in proper connection. If the problem

persists, send the product to the maintenance center for repair.

NOTE:

Do not replace the power cord yourself. If the power cord is damaged, ask your distributor to

send qualified technician to replace it for you.

30

BAX Matrix Switching Systems—User Manual

© C&C TECHNIC TAIWAN CO., LTD. All rights reserved.

Trademarks:

All the companies, brand names, and product names referred to this manual are the trademarks
or registered trademarks belonging to their respective companies.

31