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LINDY CPU Switch USB 

Installation and Use 

Page 21 

3. Using the LINDY CPU Switch USB  

 

 

This section explains the general operation of the LINDY CPU Switch USB. We 

recommend that you read this section before starting to use the product. 

 

3.1 Power on status 

 

At power on the LINDY CPU Switch USB selects computer number 1 and displays 

’1’ on the front panel numerical display. 

 

3.2 Front panel key 

 

The front panel key is used to select which channel (1 to 4) is currently connected to 

the user ports (coloured green on the rear panel) and which is currently controlled 

by the shared keyboard, mouse and monitor. Pressing the key during normal 

operation will cause the next computer channel to be selected. 

 

Depending on the position of option switch 8, pressing the front panel key will either 

select the next active computer channel or the next computer channel in numerical 

sequence (1,2,3,4,1,2,3 etc.). 

 

Using the front panel key you may cycle through the available computer channels 

until you find the required port. When the LINDY CPU Switch USB detects that no 

new key presses have occurred for a second it will start the channel lock-on 

process. During the lock-on process the display will flash to indicate that the LINDY 

CPU Switch USB is currently waiting for the enumeration guard period (see section 

2.4.1).  The channel may not be changed again until this process is complete and 

the display stops flashing. 

 

The front panel key may be used to select autoscan mode. Autoscan mode is 

activated by holding the key down for more than 5 seconds until the display starts to 

show a rotating segment. Autoscan mode may be cancelled by pressing the front 

panel key whilst within autoscan mode. 


Summary of Contents for 32 341 and use

Page 1: ...witch USB Installation and Use First edition January 2000 2000 LINDY Electronics Ltd LINDY CPU Switch USB Installation and Use Part Model 32 341 LINDY CPU Switch USB PC Part Model 32 342 LINDY CPU Swi...

Page 2: ...oor environments only w Warning live parts contained within power adapter w No user serviceable parts within power adapter do not dismantle w Plug the power adapter into a socket outlet close to the L...

Page 3: ...the terms of this warranty shall in all circumstances be limited to the replacement value of this product If any difficulty is experienced in the installation or use of this product that you are unab...

Page 4: ......

Page 5: ...he receiver is connected d Consult the supplier or an experienced radio TV technician for help FCC Compliance Statement United States This equipment generates uses and can radiate radio frequency ener...

Page 6: ...witch USB 11 2 3 Connecting your devices 11 2 4 Configuring the LINDY CPU Switch USB 14 2 4 1 Setting the USB enumeration guard time 15 2 4 2 Setting the autoscan dwell time 15 2 4 3 Setting the LINDY...

Page 7: ...3 5 Keyboard hotkey control 20 3 6 Mouse control 22 3 7 Autoscan mode 22 3 8 The optional remote controller 22 3 9 Querying the LINDY CPU Switch USB s firmware version 23 3 10 PC and Macintosh keyboa...

Page 8: ...quality video resolutions up to 1600 x 1280 pixels and screen refresh rates up to 100 Hz Each computer may be connected using just one standard USB cable and one standard video cable Robust metal cha...

Page 9: ...traditional style PC keyboard and mouse to be connected to the LINDY CPU Switch USB LINDY CPU Switch USB s channel can be changed using keyboard hotkeys or a 3 button mouse Traditional style PS 2 key...

Page 10: ...Page 10 Installation and Use LINDY CPU Switch USB 1 4 Product information Fig 1 LINDY CPU Switch USB model 32 341...

Page 11: ...LINDY CPU Switch USB Installation and Use Page 11 Fig 2 Remote control pad display optional accessory Part 32 255 Fig 3 LINDY CPU Switch USB model 32 342...

Page 12: ...vers for all the USB peripherals that you wish to connect to the LINDY CPU Switch USB Common drivers such as those for keyboards and mice are usually included with the operating system If you are conn...

Page 13: ...t these devices connected If you wish to use the PS 2 style mouse to switch the LINDY CPU Switch USB s channel then you will need a three button mouse or a LINDY mouse 2 2 Mounting the LINDY CPU Switc...

Page 14: ...onitor connections Lower quality data cables will function correctly but will generally give relatively poor video pictures and are only suitable for screen resolutions of 640 x 480 Any unused compute...

Page 15: ...LINDY CPU Switch USB Installation and Use Page 15 Figure 4 a typical LINDY CPU Switch USB installation whereby a range of peripherals are shared between four computers...

Page 16: ...follows Reserved set OFF ON OFF 1 2 3 4 5 6 7 8 Scan all ports Scan active ports only default Autoscan dwell time 5 seconds Autoscan dwell time 2 seconds default Enumeration guard time 16 seconds Enab...

Page 17: ...ch USB has locked on to a channel it will remain connected to that channel for at least the enumeration guard time This ensures that the enumeration process is complete before further channel changes...

Page 18: ...USB interface cable The LINDY CPU Switch USB is not able to detect an active computer if a USB cable from that computer is not connected to the LINDY CPU Switch USB 2 4 4 Setting the keyboard hotkey...

Page 19: ...keyboard or mouse until a suitable driver has been loaded It may only be possible to load these drivers if you have keyboard and mouse control and so consequently you may need to connect a traditional...

Page 20: ...Page 20 Installation and Use LINDY CPU Switch USB has been disconnected and triggers the automatic recovery system Plug in the LINDY PS 2 mouse and the LINDY CPU Switch USB will re initialise it...

Page 21: ...pressing the front panel key will either select the next active computer channel or the next computer channel in numerical sequence 1 2 3 4 1 2 3 etc Using the front panel key you may cycle through th...

Page 22: ...ou should avoid switching computers whilst a computer is reading or writing data to a USB data storage device such as a ZIP drive Where practical it is advisable to eject removable disks on USB drives...

Page 23: ...mbinations on the keyboard attached to the PS 2 style keyboard port see figure 4 All of the hotkey control commands are invoked by holding down the two hotkeys and then pressing a command key By defau...

Page 24: ...The next channel may be the next active channel or the next channel in numerical sequence depending upon the position of option switch 8 see section 2 4 3 HOTKEYs and A selects autoscan mode where eac...

Page 25: ...on of option switch 8 the LINDY CPU Switch USB will lock on to all the computer ports or just the active computer ports Many modern monitors are fitted with automatic power save relays and will switch...

Page 26: ...valent key mappings If you are connecting a mixture of IBM compatible PCs and Macintosh computers to the LINDY CPU Switch USB then you have several possible keyboard configuration options You may deci...

Page 27: ...Video cables You will require a video cable for each computer that you wish to connect The LINDY CPU Switch USB uses standard video cables that are terminated at each end with a standard 15 way high...

Page 28: ...on cables Extension cables should be terminated with 6 pin mini DIN PS 2 style connectors with a male connector on one end and a female connector on the other end All pins on the extension cable shoul...

Page 29: ...g between computers during the enumeration process Problem Video is fuzzy or smudged Action Ensure that you are using high quality tri coax video cables These can be easily identified as they are roug...

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