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Welcome to the ServSwitch
Thank you for purchasing a BLACK BOX
appreciate your business, and we think you'll appreciate the many ways that your
new ServSwitch keyboard/video/mouse switch will save you money, time, and
effort.
That's because our ServSwitch family is all about breaking away from the
traditional, expensive model of computer management. You know, the one-size-
fits-all-even-if-it-doesn't model that says, "One computer gets one user station, no
more, no less." Why not a single user station (monitor, keyboard, and mouse) for
multiple computers—even computers of different platforms? Why not a pair of
user stations, each of which can control multiple computers? Why not multiple
user stations for the same computer?
With our ServSwitch products, there's no reason why not. We carry a broad line
of robust solutions for all these applications. Do you have just two PCs, and need
an economical alternative to keeping two monitors, keyboards, and mice on your
desk? Or do you need to share dozens of computers, including a mix of PC, Mac
and Sun Microsystems
Does your switch have to sit solidly on a worktable and use regular everyday cables?
Or does it have to be mounted in an equipment rack and use convenient many-to-
one cables? No matter how large or small your setup is, no matter how simple or
how complex, we're confident we have a ServSwitch system that's just right for you.
The ServSwitch
switching needs!
This manual will tell you all about your new ServShare™ unit, including how to
install, operate, and troubleshoot it. For an introduction to the ServShare, see
Chapter 2. The ServShare product codes covered in this manual are:
®
types, among multiple users with different access levels?
™
family from Black Box—the one-stop answer for all your KVM-
THE SERVSWITCH™ FAMILY
®
ServSwitch
*
KV752A
KV752AE
KV754A
KV754AE
Family!
TM
™
Brand KVM switch! We
®
,
1
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Table of Contents
Related Manuals for Black Box ServSwitch KV752AE
Summary of Contents for Black Box ServSwitch KV752AE
- Page 1 ServSwitch system that’s just right for you. The ServSwitch ™ family from Black Box—the one-stop answer for all your KVM- switching needs! This manual will tell you all about your new ServShare™ unit, including how to install, operate, and troubleshoot it.
- Page 2 TRADEMARKS USED IN THIS MANUAL BLACK BOX and the logo are registered trademarks, and ServSwitch and ServShare are trademarks, of Black Box Corporation. Mac is a registered trademark of Apple Computer, Inc. IBM, PC/AT, PS/2, RS/6000, and ThinkPad are registered trademarks, and PC/XT is a trademark, of International Business Machines Corporation.
- Page 3 FCC/IC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO-FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is...
- Page 4 SERVSHARE™ NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
- Page 5 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
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Page 6: Table Of Contents
SERVSHARE™ Contents Chapter Page 1. Specifications ..................... 8 2. Introduction ..................... 10 2.1 The Complete Package ..............10 2.2 Operating Features ................10 2.3 The Front Panel ................12 2.4 The Rear Panel .................. 14 2.5 Cable Requirements ................. 15 3. -
Page 7: Chapter Page
5.1.12 ServShare Doesn’t Work with Docking Station ....38 5.1.13 ServShare Doesn’t Work with Dongle-Protected Software .. 38 5.1.14 Status LED Flashes, ServShare Doesn’t Work at All ... 38 5.2 Calling Black Box ................39 5.3 Shipping and Packaging ..............39 Appendix A: NVRAM Factory Defaults ............40 Appendix B: Cable Product Codes .............. -
Page 8: Specifications
SERVSHARE™ 1. Specifications Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A Standards — With original Serv cabling: VGA (color or monochrome/ page white) video; With original Serv cabling (minimal) or coaxial cabling (recommended): SVGA video; With coaxial cabling: XGA (color or monochrome) video All CPU and KVM ports: Interfaces —... - Page 9 CHAPTER 1: Specifications Front-mounted; Connectors — (1) DB25 female for CPU; KV752A, KV752AE: (2) DB25 female for keyboard, video, and mouse; KV754A, KV754AE: (4) DB25 female for keyboard, video, and mouse; Rear-mounted; (1) RJ-12 female for RS-232; (1) 5-pin DIN for power Power —...
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Page 10: Introduction
2.1 The Complete Package Your ServShare package includes the ServShare unit, its power supply, and this manual. If anything arrived damaged, contact Black Box. 2.2 Operating Features Some of the useful features of your ServShare: •... - Page 11 CHAPTER 2: Introduction • Depending on the CPU, can drive keyboard, video, and mouse signals across as much as 100 ft. (30.5 m) of coaxial Serv cable. • Supports all modes of PS/2 ® and PC/AT ® compatible keyboards. • Instant keyboard-LED synchronization. •...
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Page 12: The Front Panel
SERVSHARE™ 2.3 The Front Panel The ServShare’s front panel features a DIP switch, four to six LED indicators, and three to five DB25 female connectors. To familiarize yourself with these components, refer to Figures 2-1 and 2-2 and the descriptions that follow. Station 2 Station 2 Status... - Page 13 CHAPTER 2: Introduction Panel Label Description Station 1, 2, 3, 4 Station Status LEDs: Should flash once a second to show that Status the ServShare’s user-station daughterboards are communicating with each other. Also flashes whenever data is detected from the corresponding user station’s keyboard or mouse.
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Page 14: The Rear Panel
SERVSHARE™ 2.4 The Rear Panel The ServShare’s rear panel contains its RS-232 port and its power switch and connector; refer to Figures 2-3 and 2-4 and the descriptions that follow. POWER 17VAC CT RS232 ON/OFF Figure 2-3. The rear panel of a 2-port ServShare (KV752 model). POWER 17VAC CT RS232... -
Page 15: Cable Requirements
CHAPTER 2: Introduction 2.5 Cable Requirements Many switches of this type have what seems like ten million connectors on their rear panels: one for each monitor cable, one for each keyboard cable, and a third for each mouse cable. The potential for tangling or mismatching cables is high. By contrast, you can connect the ServShare to your user-station equipment with one “MKM (Monitor/Keyboard/Mouse) Adapter Cable”... -
Page 16: Installation
SERVSHARE™ 3. Installation 3.1 Quick Setup Guide Figure 3-1 shows how to connect a CPU and a keyboard, monitor, and mouse to the ServShare. Cable connectors will vary depending on the types of equipment you are installing (see Appendix B). Note that you also need to attach the unit’s power supply (its output cord will plug into the POWER inlet on the rear panel). -
Page 17: Installation Procedure
ServShare, you’ll need a “full-size” kit (our product code SW728). Once you have the Kit, see Appendix C for instructions. If you want to mount the ServShare in a 23" or 24" rack, call Black Box Technical Support for a special quote on an appropriate kit. -
Page 18: Connecting The Keyboards, Monitors, And Mice
SERVSHARE™ CAUTION! Do not attach a docking station for a ThinkPad ® or other portable computer, no matter what type or make, to the ServShare. At the time of this writing, it does not support docking stations; your Serv system might not function properly if any are attached. -
Page 19: Powering Up The System
CHAPTER 3: Installation 3.2.4 P OWERING P THE YSTEM Plug in and turn ON the ServShare, then power up the connected CPU. The ServShare emulates all keyboard and mouse functions for automatic boot-up, although you might have to issue the Mode command Mn (see Section 4.4.3) to get proper keyboard communication. -
Page 20: Operation
SERVSHARE™ 4. Operation The first part of this chapter, Section 4.1, gives you some guidelines that you should follow to make sure your ServShare works properly with your equipment. Section 4.2 tells you how to set the ServShare’s configuration DIP switch. Section 4.3 summarizes the ServShare’s keyboard commands, and Section 4.3 describes these commands in detail. -
Page 21: Monitors
CHAPTER 4: Operation The ServShare is designed to support IBM PC compatible 101-key keyboards and IBM PC keyboard-scan modes 1, 2, and 3, and it’s designed to work with a CPU and keyboards that use 5-pin DIN or 6-pin mini-DIN keyboard connectors. The ServShare might not work properly with keyboards that have proprietary keys or connectors or use proprietary keyboard-scan modes. - Page 22 SERVSHARE™ The ServShare will support SVGA (Super VGA) video, but with original Serv cables the video quality will decrease markedly at higher resolutions and distances. Table 4-1 illustrates this. The distances in the table are total cable lengths measured from the CPU to the monitor. Table 4-1.
- Page 23 Consult with the manufacturers of your CPU before installing this cable in lengths greater than 20 ft. (6.1 m). For CPU-to-monitor distances over 200 feet (61 m), Station Extenders might be required. Call Black Box Technical Support to discuss this option.
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Page 24: Setting The Configuration Dip Switch
SERVSHARE™ 4.2 Setting the Configuration DIP Switch In some situations, you might want to keep users at one or more of the user stations from sending keyboard commands to the ServShare. If this is true for you, you can disable command recognition for any station by setting the ServShare’s configuration DIP switch. - Page 25 CHAPTER 4: Operation Table 4-3. The ServShare’s Keyboard Commands Command Keystroke Sequence Description [CTRL] K Keep Settings Enter this command after you enter any of the following five commands (it saves new settings to nonvolatile memory): Set Keyboard From Station 1 only: Determines how long a user [CTRL] Hxxx Timeout (xxx = a 1- to 3-digit time...
- Page 26 SERVSHARE™ Table 4-3. The ServShare’s Keyboard Commands (continued) Command Keystroke Sequence Description [CTRL] N Send Null Byte Causes the ServShare to send a null byte to the CPU’s PS/2 mouse port. Issue this command to correct the current CPU if it gets “out of sync” with the PS/2 mouse (see Section 4.3.5).
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Page 27: The Commands In Detail
CHAPTER 4: Operation 4.4 The Commands in Detail 4.4.1 K ETTINGS The Keep Settings command saves the current state of the ServShare’s keyboard- selectable settings to nonvolatile memory (NVRAM), where they become the new default (loaded at power-up) settings. To enter the command from your keyboard, press and release the right Control key, then type [K]. - Page 28 SERVSHARE™ value; unless you send it a Keep Settings command, it will forget the mode it has detected when it is turned off or loses power, then default to the most recently saved setting when it’s powered up again. (For this reason, if you’re using a mode 1 or mode 3 CPU, you will probably want to change the ServShare’s default keyboard mode at installation time.) The ServShare can’t detect the CPU’s keyboard mode if the CPU doesn’t send...
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Page 29: Set Keyboard Typematic
CHAPTER 4: Operation 4.4.4 S EYBOARD YPEMATIC Most keyboards have an internal seven-bit “typematic” setting, which governs the way the keyboard responds when you hold a key down to force it to repeat. The five “low” bits of this setting represent the rate at which the key repeats; the two “high” bits represent the delay after you begin holding down the key before it begins to repeat. - Page 30 SERVSHARE™ Table 4-5. Typematic Rate Decimal Binary Repeat Rate in Value Bit Values Keys per Second [xx]00000 [xx]00001 26.7 [xx]00010 [xx]00011 21.8 [xx]00100 [xx]00101 18.5 [xx]00110 17.1 [xx]00111 [xx]01000 [xx]01001 13.3 [xx]01010 [xx]01011 10.9 [xx]01100 [xx]01101 [xx]01110 [xx]01111 [xx]10000 [xx]10001 [xx]10010 [xx]10011 [xx]10100...
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Page 31: Set Mouse Translation (From Station 1 Only)
CHAPTER 4: Operation 4.4.5 S OUSE RANSLATION TATION If the mice at all of your user stations are the same type (PS/2 or RS-232 serial) as the mouse port of your CPU, you can control the CPU from any station without having to reconfigure the system at all. -
Page 32: Enable, Disable, Or Freeze Other User Stations
SERVSHARE™ 4.4.7 E NABLE ISABLE REEZE THER TATIONS During normal operation, the on-screen activities of the active user are visible at all user stations, and if the active user stops using the keyboard for the duration of the keyboard-timeout period (see Section 4.4.2), the CPU can be claimed by another user. -
Page 33: Send Null Byte (Only If Cpu Is Using Ps/2 Mouse Port)
CHAPTER 4: Operation • If you’ve loaded a DOS mouse driver and are going to use an application such as NetWare that disables the PS/2 mouse, first REM out any statements in your startup files (AUTOEXEC.BAT, etc.) that load the mouse driver, then reboot the computer to remove the mouse driver from memory. -
Page 34: Troubleshooting
The first section of this chapter, Section 5.1, discusses some of the problems that can arise in a ServShare system and suggests possible causes and solutions. Sections 5.2 and 5.3 discuss what’s involved in calling Black Box and shipping your ServShare. -
Page 35: Can't Enter Keyboard Commands
CPU is defective; call the CPU’s manufacturer. If the CPU does boot, there is some kind of unusual mismatch between that CPU and the shared monitor, keyboard, or mouse; call Black Box Technical Support. -
Page 36: Mouse Driver Doesn't Load
SERVSHARE™ 5.1.4 Y ’ OUSE RIVER OESN A. What type of mouse are you using? If it’s an RS-232 serial mouse, see steps B and D. If it’s a PS/2 mouse, see steps C and D. If it’s a Microsoft BallPoint mouse, see step D. -
Page 37: Mouse Doesn't Move Pointer/Cursor
CHAPTER 5: Troubleshooting 5.1.7 Y ’ OUSE OESN OVE THE OINTER URSOR A. If you are not currently the active user: Is your monitor’s video blank, or does someone else appear to be using the CPU? If so, the active user might have frozen or disabled the other stations (see Section 4.4.7). -
Page 38: Video Not Synchronized Or Wrong Color
5.1.14 T LED F TATUS LASHES TEADILY HREE IMES A ECOND AND THE HARE UNCTION AT The ServShare has a defective component and has failed its self-test. Call Black Box Technical Support to arrange to have the unit repaired or replaced. -
Page 39: Calling Black Box
• If you are shipping the ServShare for repair, make sure you include its power supply and the CPU and MKM Adapter Cables you’re using with it. If you are returning the ServShare, make sure you include its manual as well. Before you ship, contact Black Box to get a Return Authorization (RA) number. -
Page 40: Appendix A: Nvram Factory Defaults
SERVSHARE™ Appendix A: NVRAM Factory Defaults The table below shows, for the ServShare’s saveable options, the default values stored in nonvolatile memory (NVRAM) when the ServShare is shipped from the factory. It also shows what commands or actions can change these settings for the ServShare’s current operating period, as well as what commands or actions can save changed settings to NVRAM, so that they become the new defaults. -
Page 41: Appendix B: Cable Product Codes
CPUs as much as 200 ft. (61 m) away. If your monitor/keyboard/mouse-sharing system has cabling requirements that can’t be met by what you see here, call Black Box for a possible quote on custom cables or adapters. Standard Monitor/Keyboard/Mouse Adapter Cables:... - Page 42 SERVSHARE™ Standard CPU Adapter Cables: Video Type Keyboard Type Mouse Type Product Code (Connector on Cable) (Connector on Cable) (Connector on Cable) VGA (HD15 male) IBM PC/AT (5-pin DIN male) Serial RS-232 (DB9 female) EHN048-0xxx VGA (HD15 male) IBM PS/2 (6-pin mini-DIN male) PS/2 (6-pin mini-DIN male) EHN051-0xxx Coaxial CPU Adapter Cable:...
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Page 43: Appendix C: Rackmounting The Servshare
2-port ServShare (KV752 models); use the “full-size” Kit (our product code SW728) for the 4-port ServShare (KV754 models). (If you need a Kit like one of these for a 23" or 24" rack, call Black Box Technical Support for a special quote.) C.1 Mounting 2-Port (KV752) Units Each of the SW727 Kits consists of one rackmounting shelf and four screws. - Page 44 SERVSHARE™ Figure C-1. Mounting a 2-Port ServShare with the SW727 Kit. Figure C-2. Mounting a 4-Port ServShare with the SW728 Kit.
- Page 45 NOTES...
- Page 46 NOTES...