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© Copyright 2001. Black Box Corporation. All rights reserved.
PROFESSOR
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POW ER
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FEBRUARY 2001
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KV780A
KV780AE
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Table of Contents
Related Manuals for Black Box ServSwitch KV780A
Summary of Contents for Black Box ServSwitch KV780A
- Page 1 Customer Support Information: FREE tech support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746. Mailing address: Black Box Corporation, 1000 Park Dr., Lawrence, PA 15055-1018 World-Wide Web: www.blackbox.com • E-mail: info@blackbox.com © Copyright 2001. Black Box Corporation. All rights reserved.
- Page 2 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 ServSwitch™ Professor, including how to install, operate, and troubleshoot it. For an introduction to the ServSwitch Professor, see Chapter 2.
- Page 3 BLACK BOX and the logo are registered trademarks, and ServSwitch and ServSwitch Professor are trademarks, of Black Box Corporation. Apple and Macintosh are registered trademarks of Apple Computer, Inc. IBM, PC/AT, PS/2, and RS/6000 are registered trademarks, and PC/XT is a trademark, of International Business Machines Corporation.
- Page 4 FCC/IC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION AND 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 5 SERVSWITCH™ PROFESSOR EUROPEAN UNION DECLARATION OF CONFORMITY This equipment complies with the requirements of the European EMC Directive 89/336/EEC.
- Page 6 NOM STATEMENT 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 7 SERVSWITCH™ PROFESSOR 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 8: Table Of Contents
TABLE OF CONTENTS Contents Chapter Page 1. Specifications ..................... 7 2. Introduction ....................9 2.1 The Complete Package ............... 9 2.2 Features ..................... 10 2.3 The ServSwitch Professor Illustrated ..........12 2.3.1 The Front Panel ..............12 2.3.2 The Rear Panel ..............13 2.3.3 The Bottom Panel .............. -
Page 9: Chapter Page
5. Troubleshooting ..................48 5.1 Restoring Factory-Default Settings ........... 48 5.2 Common Problems ................49 5.3 Calling Black Box ................54 5.4 Shipping and Packaging ..............54 Appendix A: NVRAM Factory Defaults ............55 Appendix B: Cable Product Codes ..............57... -
Page 10: Specifications
CHAPTER 1: Specifications 1. Specifications Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A; 230-VAC (“-AE” suffix) models: CE Standards — With original Serv cabling: VGA (color or monochrome/ page white) video; With original Serv cabling (minimal) or coaxial cabling (recommended): SVGA video;... - Page 11 SERVSWITCH™ PROFESSOR Front-mounted: Connectors — (1) DB25 female for CPU; (1) DB25 female for keyboard, monitor, and mouse; Rear-mounted: (2) 13W3 female: (1) bus in, (1) bus out; (1) RJ-12 (“6-wire RJ-11”) female for RS-232; (1) 5-pin DIN female for power Maximum Altitude —...
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Page 12: Introduction
CHAPTER 2: Introduction 2. Introduction Thank you for choosing a ServSwitch™ Professor. Designed for plug-and-play operation, your new Professor will simplify your job by helping you organize your applications involving multiple IBM ® PC compatible computers. In particular, the ServSwitch Professor is especially designed for classroom applications so the instructor can access students’... -
Page 13: Features
SERVSWITCH™ PROFESSOR 2.2 Features Some of the useful features of the ServSwitch Professor: • The instructor can access any student’s computer in three modes: View mode—see student’s station without disturbing student’s keyboard or mouse; Share mode—see student’s station with interactive keyboard and mouse sharing;... - Page 14 CHAPTER 2: Introduction • Drives video, keyboard, and mouse up to 100 ft. (30.5 m) away. • Supports up to 1280 x 1024 noninterlaced video resolution. • LEDs show bus status and video-sending state. • Screen-blanking function turns off video after 1 to 999 seconds of inactivity. •...
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Page 15: The Servswitch Professor Illustrated
SERVSWITCH™ PROFESSOR 2.3 The ServSwitch Professor Illustrated 2.3.1 T RONT ANEL The ServSwitch Professor’s front panel features two local-equipment connectors and three LED indicators. To familiarize yourself with these controls and indicators, refer to Figure 2-1 and the descriptions that follow. (The figure shows a System Control Module, but Student Modules will have the same components in the same places.) SYSTEM CONTROL... -
Page 16: The Rear Panel
CHAPTER 2: Introduction 2.3.2 T ANEL The ServSwitch Professor’s rear panel features two bus connectors, as well as an RS-232 port, power inlet, and power switch, as illustrated in Figure 2-2 and described below. POWER 17VAC CT RS-232 BUS OUT BUS IN Figure 2-2. -
Page 17: The Bottom Panel
SERVSWITCH™ PROFESSOR 2.3.3 T OTTOM ANEL The ServSwitch Professor’s bottom panel features a configuration DIP switch, as illustrated in Figure 2-3 and described below. Figure 2-3. The bottom panel of a ServSwitch Professor. Panel Label Description The setting of this 8-position configuration DIP switch [None] determines the bus address of the ServSwitch Professor and the CPU attached to it. -
Page 18: Cable Requirements
CHAPTER 2: Introduction 2.4 Cable Requirements Many switches of this type have what seems like ten million connectors on their rear panels: one for each CPU’s video cable, one for each keyboard cable, a third for each mouse cable, and then there are the user-device cables—and don’t even talk about the bus wiring running between the switches! Needless to say, the potential for tangling or mismatching cables is high. -
Page 19: Installation
SERVSWITCH™ PROFESSOR 3. Installation 3.1 Quick Setup Guide Figures 3-1 and 3-2 show a basic example of connecting a CPU, keyboard, monitor, and mouse to the ServSwitch Professor, as well as interconnecting a set of Professors with bus cables. Local-device connectors will vary depending on the types of equipment you are installing. -
Page 20: Placement
CHAPTER 3: Installation 3.2 Placement It’s a good idea to put each ServSwitch Professor as close as possible to the CPU and associated keyboard, monitor, and mouse that you want to attach to it. This is because using short CPU and User Cables to run to your local devices is not only neater and less expensive, but will also provide the best video quality to and from those devices. -
Page 21: Rackmounting (Optional)
Size Classic-Chassis ServSwitch Family Rackmount Kit (our product code SW727). If you want to mount the ServSwitch Professor in a 23" or 24" rack, call Black Box Technical Support for a quote on a special Kit. See Appendix C for more... -
Page 22: Connecting The Keyboard, Monitor, And Mouse
CHAPTER 3: Installation 3.3.3 C ONNECTING THE EYBOARD ONITOR OUSE An included User Cable (also called a Monitor/Keyboard/Mouse [“MKM”] Adapter Cable) connects your monitor, keyboard, and mouse to the ServSwitch Professor. System Control Module Kits include one PS/2 style User Cable with 6-pin mini-DIN keyboard and mouse connectors and one PC/AT style User Cable with a 5-pin DIN mouse connector and a DB9 mouse connector;... -
Page 23: Connecting The Bus
SERVSWITCH™ PROFESSOR Take these steps: 1. After you verify that the Professor is turned off and unplugged, plug the DB25 male connector of the CPU’s CPU Cable into the DB25 female COMPUTER port on the Professor’s front panel. 2. Plug the CPU Cable’s video-, keyboard-, and mouse-port connectors into the corresponding ports on the CPU. -
Page 24: Powering The Professor
CHAPTER 3: Installation • To connect the bus to the last station, take the bus cable running from the previous station’s BUS OUT port and attach it to this station’s BUS IN port, then attach a bus terminator to the last station’s BUS OUT port. Remember that cables must run from BUS OUT ports to BUS IN ports;... -
Page 25: Testing The Professor
SERVSWITCH™ PROFESSOR 3.3.7 T ESTING THE ROFESSOR Your ServSwitch Professor is now ready for operation using its default settings. To take full advantage of the Professor’s features, refer to Chapter 4, which gives detailed information about each of the Professor’s commands, describing its application and giving the keyboard command sequence. -
Page 26: Operation
CHAPTER 4: Operation 4. Operation The first part of this chapter, Section 4.1, gives you some guidelines that you should follow to make sure your ServSwitch Professor works properly with your equipment. Section 4.2 summarizes the Professor’s keyboard commands, and Section 4.3 describes these commands in detail. - Page 27 SERVSWITCH™ PROFESSOR The ServSwitch Professor is designed to support IBM PC compatible 101-, 102-, 104-, or 105-key keyboards and IBM PC keyboard-scan modes 1, 2, and 3; it’s also designed to work with PC-type CPUs/keyboards that use 5-pin DIN or 6-pin mini- DIN keyboard connectors.
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Page 28: Monitor
CHAPTER 4: Operation 4.1.3 M ONITOR NOTE At resolutions up to 1024 x 768, video quality will be excellent for most Professor applications. At higher resolutions, however, it might not be possible to avoid seeing some fuzziness on your monitors. The ServSwitch Professor is designed to support standard VGA video, including VGA monochrome (“page white”). - Page 29 CPUs before installing this cable in lengths greater than 20 ft. (6.1 m). For Professor-to-CPU or Professor-to-monitor runs over 100 feet (30.5 m), Station Extenders or CAT5 KVM Extenders might be required. Call Black Box for technical support to discuss this option.
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Page 30: Keyboard-Command Summary
CHAPTER 4: Operation 4.2 Keyboard-Command Summary Table 4-3 below and on the next three pages summarizes the commands that can be sent to the ServSwitch Professor. To enter any command at the shared keyboard, first press and release the left Control Key, represented by “[CTRL].” (This cues the Professor to look for commands from that keyboard.) Then enter the command followed by any arguments you wish to specify (the station number, for example). - Page 31 SERVSWITCH™ PROFESSOR Table 4-3 (continued). The ServSwitch’s keyboard commands. Command Keystroke Sequence Description XView Station Allow the student(s) at station1 to view the CPU [CTRL] [F9] st1* at Station display and activity at station2. [ENTER] st2* XShare Station Allow the student(s) at station1 to share control of [CTRL] [F10] st1* with Station the CPU at station2.
- Page 32 CHAPTER 4: Operation Table 4-3 (continued). The ServSwitch’s keyboard commands. Command Keystroke Sequence Description Keep Settings Enter this command after you enter any of the [CTRL] K following ten commands (it saves new settings to nonvolatile memory): Set Scan- Sets the time, in seconds, that the ServSwitch will [CTRL] Txx [ENTER] (xx = delay in seconds Delay Time...
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Page 33: The Commands In Detail
SERVSWITCH™ PROFESSOR Table 4-3 (continued). The ServSwitch’s keyboard commands. Command Keystroke Sequence Description Reset Resets and enables the keyboard and mouse. [CTRL] R Issue this command to correct your keyboard or mouse if one of them malfunctions or gets stuck. Send Null Byte Causes the ServSwitch to send a null byte to the [CTRL] N... -
Page 34: Share Station
CHAPTER 4: Operation 4.3.2 S HARE TATION The Share Station command is used to interact with a student. Issue the command by pressing and releasing the left [Ctrl] key, pressing the [F2] key, designating a station address (CPU number; see the Note on the previous page), and pressing [Enter]. -
Page 35: Enable Station
SERVSWITCH™ PROFESSOR 4.3.5 E NABLE TATION The Enable Station command restores any or all students’ keyboards, mice, and monitors to normal connections with their own CPUs after you (the instructor) have restricted their access with the Disable Station or Freeze Station command (see Section 4.3.6 or 4.3.7 respectively). -
Page 36: Operation: Hardware And Commands (Continued) 4.3 The Commands In Detail (Continued) 4.3.8 Xview Station At Another Station
CHAPTER 4: Operation 4.3.8 XV TATION AT NOTHER TATION The XView Station at Another Station command is used to allow one or more students to observe a fellow student’s screen. Issue the command by: • pressing and releasing the left [Ctrl] key, •... -
Page 37: Xshare Station With Another Station
SERVSWITCH™ PROFESSOR 4.3.9 XS HARE TATION WITH NOTHER TATION The XShare Station with Another Station command is used to allow one or more students to share control of a CPU with one of their fellow students. Issue the command by: •... - Page 38 CHAPTER 4: Operation Issuing the XShare Station with Another Station command with a sharing station address of Me ([F11]) will cause the Professor system to behave just as if you had entered the Share Station command (see Section 4.3.2). Issuing the XShare command with a shared station address of Me ([F11]) will actually allow students to share control of your CPU.
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Page 39: Select Station
SERVSWITCH™ PROFESSOR 4.3.10 S ELECT TATION Instead of using the View, Share, or Control Station command to switch to a student’s station, you can use this command to select any station directly. To do so, press and release your keyboard’s left [Ctrl] key, type in the station address, and press [Enter]. -
Page 40: Switch To The Previously Selected Station
CHAPTER 4: Operation 4.3.12 S WITCH TO THE REVIOUSLY ELECTED TATION You can use this command—which causes the Professor to switch back to the station you had previously selected before selecting the station you’re currently connected to—as a convenient method of switching back and forth between two stations/CPUs. -
Page 41: Keep Settings
SERVSWITCH™ PROFESSOR 4.3.14 K ETTINGS The Keep Settings command causes all of the ServSwitch Professors in your system to save their keyboard-selectable settings to their nonvolatile memory (NVRAM), after which they become the new default (loaded at power-up) settings. To enter the command, press and release the left [Ctrl] key, then type [K]. -
Page 42: Set Screen-Saver Interval
CHAPTER 4: Operation IMPORTANT NOTE FOR THE FOLLOWING SEVEN COMMANDS Each of the seven commands described in the next seven sections involves configuring stations. In order to configure any station, you must first select that station with one of the station-selection commands described in Sections 4.3.1 through 4.3.3 (View Station, Share Station, or Control Station) or Sections 4.3.10 through 4.3.12 (Select Station, Switch to Next Station, Switch to Previous Station, or Switch to Previously... - Page 43 SERVSWITCH™ PROFESSOR If you set a station’s timeout for zero, the timeout becomes “instant”: The keyboards of two stations each set for a zero timeout and connected to the same CPU will appear to be sending data to the CPU simultaneously, because keystrokes from either one will be accepted at any time.
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Page 44: Set Keyboard Mode
CHAPTER 4: Operation 4.3.19 S EYBOARD Keyboard “modes” are electrical signaling protocols that determine how a powered CPU and keyboard interact. A CPU and keyboard must use the same mode in order to work with each other. Of the three standard keyboard modes currently in use, mode number 2 is the one used by the vast majority of CPUs. -
Page 45: Set Keyboard Typematic
SERVSWITCH™ PROFESSOR 4.3.20 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 46 CHAPTER 4: Operation 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...
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Page 47: Set Mouse Translation
SERVSWITCH™ PROFESSOR 4.3.21 S OUSE RANSLATION If the mice at all of your user stations are the same type (PS/2 or RS-232 serial) as the mouse port of all of your CPUs, you can control the CPU from any station without having to reconfigure the system at all. -
Page 48: Set Access Level
CHAPTER 4: Operation 4.3.23 S CCESS EVEL We urge you to be very careful when using this command, because its main purpose is to allow commands to be entered from a student station. Normally the access level for student stations is “4” (commands ignored), while the access level for the instructor station (the System Control Module) is “1”... -
Page 49: Reset
SERVSWITCH™ PROFESSOR 4.3.24 R ESET This command, along with the commands described in the next two sections, can come in handy when certain problems arise. It will reboot your keyboard and mouse without your having to power down the station or the system, and will also re-enable PS/2 mouse communication if the selected CPU has previously disabled it. -
Page 50: Send Null Byte (Ps/2 Type Mice Only)
CHAPTER 4: Operation 4.3.25 S (PS/2 T Regular PS/2 type mice send control data to CPUs in three-byte increments. Sometimes, because of electronic transients, unusual power-up effects, or plugging and unplugging of cables from live equipment, an active CPU in a ServSwitch Professor system can lose one or two bytes of this control information and get “out of sync”... -
Page 51: Troubleshooting
The unit should be restored to its factory-default settings. See Appendix A for a list of these. Now reconfigure the unit to your desired settings. If you’re still having difficulty, refer to Section 5.2. If it doesn’t help you to solve your problem, call Black Box for technical support. -
Page 52: Common Problems
Call Black Box Technical Support to arrange to have it repaired (see Section 5.3). A CPU connected to a ServSwitch Professor doesn’t boot, and you get a keyboard or mouse error. - Page 53 SERVSWITCH™ PROFESSOR You can’t select stations from the keyboard. A. Can you do anything from the keyboard? If not, the keyboard segment of your User Cable has probably come loose. Reconnect it. B. The CPU on that station is probably busy (being used by someone else). Wait a while and try again, or issue a Control Station command (see Section 4.3.3) to attempt to take control of the CPU immediately.
- Page 54 CHAPTER 5: Troubleshooting You can’t seem to scan or switch to certain stations at all. Minimum Scan Station is set too high or Maximum Scan Station is set too low. Set these parameters to exactly match the lowest- and highest-numbered stations, respectively, that you want to be able to scan and switch to (see Section 4.3.16).
- Page 55 CPUs can drive keyboard and mouse signals strongly enough. If you are already using coax CPU and User Cables, you might need to add Station Extenders or CAT5 KVM Extenders; call Black Box for technical support. See Section 4.1.3 and Appendix B.
- Page 56 CHAPTER 5: Troubleshooting Your video is OK in low-resolution mode, but you can’t get into high-resolution mode. A. If you’re using XGA, you must use coaxial cables (see Section 4.1.3 and Appendix B). B. Check your video driver or control panel. It might not be set up correctly for your desired resolution.
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Page 57: Calling Black Box
5.3 Calling Black Box If you determine that your ServSwitch Professor is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem. We will be able to... -
Page 58: Appendix A: Nvram Factory Defaults
APPENDIX A: NVRAM Factory Defaults Appendix A: NVRAM Factory Defaults The table below and on the next page shows, for the ServSwitch Professor’s saveable options, the default values stored in nonvolatile memory (NVRAM) when the Professor is shipped from the factory. It also shows what commands or actions can change these settings for the Professor’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 59 SERVSWITCH™ PROFESSOR Option Factory-Default Setting To Change To Save Changes Keyboard Mode 2 Select station, then type [CTRL] K Mode [CTRL] Mx [ENTER] (x = 1, 2, or 3; see Section 4.3.19) Keyboard 43 (delay of ⁄ second, Select station, then type [CTRL] K Typematic rate of 10.9 characters...
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Page 60: Appendix B: Cable Product Codes
1000 ft. (300 m) away. If your ServSwitch Professor 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 User Cables:... - Page 61 SERVSWITCH™ PROFESSOR Standard CPU 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 Cable:...
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Page 62: Appendix C: Rackmounting The Servswitch Professor
4. Mount the entire assembly in your rack using your own screws, bolts, or cage nuts (not included). If you need a Kit like this for a 23" or 24" rack, call Black Box Technical Support for a special quote. - Page 63 NOTES...
- Page 64 NOTES...
- Page 65 NOTES...