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Hardware 

 

2-4 

USB 4112/ basicCON 4112 – User Manual 

 

 

2.3

 

Construction and Function 

 

The  

USB 4112

 multiplexer board (also used for  

basicCON 4112

switches the signal of one of the four LVDS inputs (ANSI TIA/EIA-644) 

to the output.  

Moreover, the signal is regenerated by the repeaters on the board. 
Additionally, a control signal (for example LIN) is multiplexed. 
By cascading resp. interconnecting several  

USB 4112

  devices with 

each other it is possible to create a 64 to 1 multiplexer.  

But we advise not to chain more than three multiplexers in series.  

(As otherwise too much jitters would be on the LVDS signal.  

Then no error-free transmission can be ensured.) 
The board can be controlled via USB or (limited) via switches located 

on the board. 
All boards have five HF connections at the frontal panel to connect the 

LVDS cables. 
 
At the rear side of the  

USB 4112

  board there is a 132 poles backplane 

connector for connecting the board in a  

GOEPEL electronics

  

USB Rack.

 

The  

basicCON 4112

  has a USB-B connector and connections for 

external power supply. 
 
 

 

If required, a Hardware Initialization can be carried out by means of 

the Switches on the board. 
In  Figure 2-4  you can see that there is a belonging switch  

1

..

4

  for 

each of the  

LVDS In1

..

LVDS In4

  input channels. 

After switching on, when the Host Mode has not been activated, yet, 

the device conducts at most one of the channels to the output as 

follows: 
If all switches are switched OFF, the LVDS output is also switched 

OFF. If one switch is switched ON, the signal of the belonging input is 

conducted to the output.  

In the case several switches are switched ON, always the switch with 

the lowest number has priority. That means, the belonging signal is 

conducted to the output. 

1

2

3

4

ON

 

 

After the activation of the Host Mode, the switches are not active and 

control is effected via USB. In the delivery state, all switches are 

switched OFF. If required, the switches should be set as needed 

before the installation process. 

 

 

Activate the Host Mode by G-API command  

G_Lvds_Multiplexer_HostControlMode_Set

Please refer to the  

G-API User Manual

  regarding this command and 

further G-API commands for the control of your   

USB 4112

basicCON 4112

  module. 

 

 

 

2.3.1

 

General 

2.3.2

 

Hardware 

Initialization 

Figure 2-4: 

Switches for Initialization 

Summary of Contents for basicCON 4112

Page 1: ...electronic GmbH Goeschwitzer Str 58 60 D 07745 Jena 49 3641 6896 597 ats_support goepel com www goepel com USB basicCON 4112 4 1 LVDS Multiplexer User Manual Translation of Original docu Document vers...

Page 2: ...e due to technical progress In case of inaccuracies or errors appearing in this manual GOEPEL electronic GmbH assumes no liability or responsibility Without the prior written permission of GOEPEL elec...

Page 3: ...NSTALLATION 1 2 2 HARDWARE 2 1 2 1 DEFINITION 2 1 2 2 TECHNICAL DATA 2 3 2 2 1 Dimensions 2 3 2 2 2 Properties 2 3 2 3 CONSTRUCTION AND FUNCTION 2 4 2 3 1 General 2 4 2 3 2 Hardware Initialization 2 4...

Page 4: ......

Page 5: ...ing a little pressure Then tighten the two outer screws at the front panel to fix the board When installing the board touch it at its edges only Never touch the surface of the board because otherwise...

Page 6: ...The USB interface uses the high speed data rate according to the USB2 0 specification if possible otherwise full speed Due to the plug and play ability of Windows the device will be automatically rec...

Page 7: ...ignals ANSI TIA EIA 644 The board is a 4 to 1 multiplexer for LVDS signals with a bandwidth up to 3 125 GBit s at maximum Additionally the board is used as signal repeater USB 4112 boards can only be...

Page 8: ...via the ext Power Supply connections see Power Supply At the device s rear side there are the following connections USB B female for the USB 2 0 interface with USB standard assignment DC female for th...

Page 9: ...112 ISS Supply current 200 400 mA USExt External Power supply 7 12 25 V IMax 170mA at 12V Optionally for basicCON 4112 LVDS UID Differential LVDS input voltage 1 V IID Differential input current 1 10...

Page 10: ...supply If required a Hardware Initialization can be carried out by means of the Switches on the board In Figure 2 4 you can see that there is a belonging switch 1 4 for each of the LVDS In1 LVDS In4 i...

Page 11: ...erface as far as it is configured for the required current of about 500 mA For operating the basicCON 4112 at passive USB hubs or laptops with lower power supply use the two banana females for ext Pow...

Page 12: ...4112 User Manual 2 4 Accessories The following accessories can be delivered for USB 4112 basicCON 4112 devices LVDS HF connecting cable when ordering please state the required length and the connector...

Page 13: ...no blocking execution for pending firmware commands The command acknowledgement is provided via callback mechanism Therefore no polling is required from the application With the HardwareExplorer GOEP...

Page 14: ......

Page 15: ...1 H Hardware Explorer 3 1 Hardware Initialization 2 4 U USB 4112 Accessories 2 6 Addressing 2 5 Cascading 2 4 Characteristics 2 3 Connections 2 4 2 5 Definition 2 1 Dimensions 2 3 Driver Installation...

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