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8

KVM SWITCH

3.1 Quick Setup Guide

Figure 3-1, below, offers a basic example of how to connect your CPUs,
keyboard, monitor, and mouse to the KVM Switch unit. Connectors will 
vary depending on the types of equipment you are installing.

3. Installation

1

3

2

4

COMMON

Fig. 3-1. System setup for a 4-port PC model (SW731A).

NOTE

You can connect EGA CPUs to PC
models of the KVM Switch if you
have (a) a multisync monitor with a
horizontal scan-frequency range of
15.5 to 35 KHz, and (b) an EGA-to-
VGA adapter for each EGA computer.
These adapters plug into each EGA
CPU’s video port, altering the EGA
video signal so that it can be carried
over VGA cable. (The PC models of
the KVM Switch natively support
VGA only.) Call Black Box for a quote
on EGA-to-VGA adapters.

Monitor/Keyboard/Mouse

Adapter Cable

CPU Adapter Cable

Mouse

Mouse

Keyboard

Video Card

Keyboard

Monitor

Summary of Contents for SW730A

Page 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1995 Black Box Corporation All rights reserved ...

Page 2: ... technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com KVM Switch KVM Switch 1 2 3 4 CPU POWER 1 2 3 4 POWER APRIL 1995 SW730A SW733A SW731A SW734A SW732A SW735A ...

Page 3: ...rk of Apple Computer Inc AT IBM and PS 2 are registered trademarks of IBM Corporation PC XT is a trademark of IBM Corporation Logitech is a trademark of Logitech Inc Microsoft is a registered trademark of Microsoft Corporation Sun is a registered trademark of Sun Microsystems Inc All other trademarks are the property of their respective owners ...

Page 4: ...is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Thi...

Page 5: ... eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso La colocación...

Page 6: ...una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación 18 Servicio por personal calificado deberá ser provisto cuando A El cable de poder o el...

Page 7: ...ents 7 3 Installation 8 3 1 Quick Setup Guide 8 3 2 Installation Procedure 9 4 Operation 13 4 1 The Switching Procedure 13 4 2 Guidelines for Using the KVM Switch with Your Equipment 13 5 Troubleshooting 15 5 1 Common Problems 15 5 2 Calling Black Box 17 5 3 Shipping and Packaging 17 Appendix A Connector Pinout 18 Appendix B Cable Product Codes 19 Trademarks Used in This Manual 20 ...

Page 8: ...ards SW730A SW731A VGA video EGA CGA video with additional adapters SW732A SW733A Macintosh video SW734A SW735A Sun video Interfaces Proprietary composites SW730A SW731A IBM AT keyboard RS 232 for serial mouse and VGA video SW732A SW733A Macintosh video and Apple Desktop Bus for keyboard and mouse SW734A SW735A Sun keyboard mouse and video Maximum Resolution SW730A SW731A SW734A SW735A 1280 x 1024...

Page 9: ...h port CPU POWER Connectors Rear mounted DB25 female 1 labeled COMMON to monitor keyboard mouse 1 for each port numbered to CPUs Maximum Altitude 10 000 ft 3048 m Temperature 32 to 131 F 0 to 55 C Humidity 0 to 85 noncondensing Enclosure Steel Power From CPU ports approximately 50 mA at 5 volts Size 2 25 H x 8 8 W x 4 9 D 5 7 x 22 4 x 12 4 cm Weight Net 3 lb 1 4 kg Shipping 4 lb 1 8 kg ...

Page 10: ...nual If you didn t receive everything contact Black Box 2 2 Operating Features Some of the useful features of your KVM Switch Access two or four CPUs with one keyboard monitor and mouse Available in six different models for three different platforms For IBM AT or PS 2 PCs or compatibles SW730A has two ports SW731A has four For Apple Macintosh computers SW732A has two ports SW733A has four For Sun ...

Page 11: ...ont panel LEDs show Switch power selected CPU and its power on state and other conditions No external power supply low power circuitry uses power from CPUs Power to keyboard and mouse is maintained during switching for smooth trouble free operation Adapter cables that merge keyboard video and mouse signals onto single DB25 connectors simplify cable management 19 rackmount kits available ...

Page 12: ...itch Plus 1 2 3 4 4 3 2 1 POWER CPU POWER POWER Power LED Lights steadily to indicate that the unit is powered ON Flashes to indicate self test error or CPU attempt to initialize the keyboard see Section 3 2 5 CPU POWER CPU Power LEDs Numbered LEDs indicate whether the CPUs connected to the corresponding ports on the rear panel are powered on 1 2 3 4 Port Selection Buttons Press these buttons to m...

Page 13: ...PU ports and the monitor keyboard and mouse You must have an adapter cable for each CPU you plan to connect See the next section COMMON DB25F Connect the shared monitor keyboard and mouse to this port using an MKM Adapter Cable At the switch end this cable has a DB25M connector at the other end s it has appropriate connectors to plug into your monitor keyboard and PC models only mouse cables Only ...

Page 14: ...e special CPU Adapter Cable which ties both or all three of those cables into one Likewise connect the KVM Switch to the shared monitor keyboard and mouse with a single MKM Adapter Cable The exact type s of cables you ll need will depend on the equipment you are connecting for your application Refer to Appendix B for the available types of these cables and the corresponding product codes PC models...

Page 15: ... connect EGA CPUs to PC models of the KVM Switch if you have a a multisync monitor with a horizontal scan frequency range of 15 5 to 35 KHz and b an EGA to VGA adapter for each EGA computer These adapters plug into each EGA CPU s video port altering the EGA video signal so that it can be carried over VGA cable The PC models of the KVM Switch natively support VGA only Call Black Box for a quote on ...

Page 16: ...cted to the Switch are disconnected Now unscrew the two Phillips screws on each side of the Switch s housing and remove the housing Look at the Switch s circuit board The ID bit jumpers are right next to the COMMON connector They are labeled JP20 controls ID0 JP21 controls ID1 JP22 controls ID2 and JP23 controls ID3 With the front panel facing you the jumpers are factory installed in the right han...

Page 17: ...d keyboard into the corresponding connectors at the other end s of the MKM Adapter Cable PC models SW730A SW731A only a To use a PS 2 keyboard you will need to attach a special keyboard adapter 6 pin mini DIN female to 5 pin DIN male our product code FA212 between the keyboard cable s connector and the MKM Adapter Cable s connector b The Switch is transparent to the shared keyboard s scan mode but...

Page 18: ...CPU ports on the KVM Switch s rear panel 2 Plug the CPU Adapter Cable s video and keyboard port connectors into the corresponding ports on the CPU PC models SW730A SW731A only a To attach the keyboard port connector of the CPU Adapter Cable to the keyboard port of a PS 2 you will need to place a special keyboard adapter 5 pin DIN female to 6 pin mini DIN male our product code FA211 between them b ...

Page 19: ...l microprocessor errors the POWER LED will continue to flash indefinitely to indicate that the Switch is malfunctioning call Black Box for technical support see Section 5 2 If a CPU is designed to initialize its keyboard when the CPU boots or is reset the POWER LED will flash slowly five times whenever that CPU attempts to initialize the keyboard This alerts you to both normal reset conditions suc...

Page 20: ... support PS 2 bus mice and it does not support mice that must receive configuration data from the CPU Also the KVM Switch is transparent to the keyboard scan mode but each CPU must support the scan mode used by the shared keyboard 4 2 3 MONITOR The adapter cables used by the PC and Sun models of the KVM Switch are coaxial This heavy duty construction allows them to carry near perfect video at reso...

Page 21: ...f 15 5 to 35 KHz These can be hard to find One set of models that fit the bill is older NEC Multisync II monitors Table 4 1 Video Quality vs Distance Mac Models Resolution Distance 6 1 8 m 11 3 3 m 21 6 4 m 640 x 480 3 3 3 800 x 600 non interlaced 3 3 2 1024 x 768 interlaced or not 3 3 2 1280 x 1024 interlaced or not 2 2 1 Quality 3 Perfect or near perfect screen defects are difficult to detect Qu...

Page 22: ...ry plugging the CPU into a different CPU port on the KVM Switch If the CPU boots when it s connected to a different port the old port is probably defective D If swapping ports doesn t solve the problem try plugging the keyboard and mouse directly into the CPU that s having the problem If the CPU boots the KVM Switch might be defective call Black Box for technical support E If the CPU still doesn t...

Page 23: ...stance from any CPU to the shared monitor keyboard and mouse is 21 ft 6 4 m See Section 4 2 3 5 1 4 YOUR VIDEO IS NOT SYNCHRONIZED OR IS THE WRONG COLOR A Check the settings of your monitor especially the sync or color controls B If you can t solve the problem by changing the monitor settings check the video strands of your cables Tighten any loose connections C Mac and Sun models only The ID bit ...

Page 24: ...and duration of the problem when the problem occurs the components involved in the problem any particular application that when used appears to create the problem or make it worse 5 3 Shipping and Packaging If you need to transport or ship your KVM Switch Package it carefully We recommend that you use the original container If you are shipping the KVM Switch for repair make sure you include the ad...

Page 25: ...ved Do not use 11 5V in 5V out Power for LEDs Peripherals 12 RS 232 out RS 232 in Serial Data 13 RS 232 in RS 232 out Serial Data 14 Red in Red out VGA Color 15 Green in Green out VGA Color 16 Blue in Blue out VGA Color 17 ID0 out ID0 in ID0 18 ID1 out ID1 in ID1 19 ID2 out ID2 in ID2 20 CSync in CSync out Composite Sync 21 Unused V Mouse Power 22 Ground Ground Digital Ground 23 Ground Ground Digi...

Page 26: ...nector on Cable Connector on Cable Connector on Cable VGA DB15HD female IBM AT 5 pin DIN female Serial RS 232 DB9 male EHN052 0001 Mac DB15 female Mac 4 pin mini DIN female Mac none EHN104 0001 Sun 13W3 female Sun 8 pin mini DIN female Sun none EHN102 0001 CPU Adapter Cables Video Type Keyboard Type Mouse Type Product Code Connector on Cable Connector on Cable Connector on Cable VGA DB15HD male IB...

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