Black Box ServSwitch ACS235A Manual
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Black Box ServSwitch ACS235A Manual

Black Box ServSwitch ACS235A Manual

Black box fiber kvm extender
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JANUARY 2001
R e m o te
M
F I B E R K V
U n it
R
E X T E N D E
P o w e r
2
1
B
G
R
ACS235A
ACS236A

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Summary of Contents for Black Box ServSwitch ACS235A

  • Page 1 JANUARY 2001 R e m o te F I B E R K V U n it E X T E N D E P o w e r ACS235A ACS236A...
  • Page 2 ® Macintosh multiple users with different access levels? 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...

  • Page 3: Declaration Of Conformity

    The Extender was tested in a typical configuration. TRADEMARKS USED IN THIS MANUAL BLACK BOX and the trademark, of Black Box Corporation. Apple and Macintosh are registered trademarks of Apple Computer, Inc. ST is a registered trademark of AT&T IBM, PC/AT, and PS/2 are registered trademarks of International Business Machines Corporation.

  • Page 4: Fcc/Ic Statements

    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: Instrucciones De Seguridad

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS NORMAS OFICIALES MEXICANAS (NOM) 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. 3.

  • Page 6: 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.

  • Page 7: Table Of Contents

    2. Introduction ... 11 2.1 Overview ... 11 2.2 The Complete Package ... 12 3. Configuring the ACS235A ... 13 3.1 Configuring for RGB Video ... 13 3.1.1 VGA vs. RGB Signaling ... 13 3.1.2 VGA Video Card to RGB Monitor (VGA to RGB Conversion) ...
  • Page 8 5.1.3 RGB Monitor or Legacy Sun Monitor ... 30 5.1.4 Keyboard and Mouse ... 31 5.1.5 Parallel Printer (Optional with ACS235A) ... 31 5.1.6 Serial Device (Optional with ACS236A) ... 31 5.2 Connecting a CPU or KVM Switch to the Local Module ... 32 5.3 Connecting User Equipment or a KVM Switch to the...

  • Page 9: Specifications

    Refresh Rate — Up to 75 Hz Keyboard Current Consumption — Up to 100 mA Data Rate — ACS235A’s parallel interface: Transparent to data rates up to 20,000 cps; ACS236A’s serial interface: Transparent to data rates up to 38,400 bps Optical 850 nm Wavelength —...
  • Page 10 5 dB Maximum 1000 m (3281 ft.) between Extender’s Local and Remote Distance — Modules User Controls — Both ACS235A and ACS236A, rear-mounted on the Remote Module: (2) Rear-mounted dials for contrast and brightness; (3) Rear-mounted trimpots for adjusting color-signal ACS235A:...
  • Page 11 SERVSWITCH™ BRAND FIBER KVM EXTENDERS Connectors (continued) — ACS236A: Front-mounted on Local Module: Front-mounted on Remote Module: Temperature Tolerance — Operating: 50 to 113˚F (10 to 45˚C); Storage: 23 to 131˚F (–5 to +55˚C) Humidity Tolerance — Up to 80% noncondensing Power —...

  • Page 12: Introduction

    1000 m (3281 ft.) away. There are two models of the Extender. The PC version (product code ACS235A) extends KVM distance for IBM PC compatible computers. The Sun version (product code ACS236A) extends KVM distance for Sun Microsystems Each model consists of two main components: a Local Module that you’ll attach...

  • Page 13: The Complete Package

    • (1) 10-ft. (3-m) keyboard/video/mouse CPU-extension cable with an HD15 female video connector and an 8-pin mini-DIN keyboard/mouse connector (equivalent to our product code EHN236-0010). If anything is missing, contact Black Box right away. If the package has been damaged, contact both Black Box and the shipping carrier. ®...

  • Page 14: Configuring For Rgb Video

    3. Configuring the ACS235A This chapter describes how to configure the PC model of the ServSwitch™ Brand Fiber KVM Extender (ACS235A). If your Extender is the Sun model (ACS236A), see Chapter 4. 3.1 Configuring for RGB Video In normal configuration at delivery time, the Extender units are configured to carry video from a VGA source to a VGA monitor.

  • Page 15: Important Notes

    Remote Module’s JP9 jumper; the monitor should work fine using CSYNC only. See Section 3.3.3. Siemens ® users: The Extender can process CP581 signals, but this requires special cabling. Call Black Box for technical support. CAUTION! RGB M ONITOR VGA M...
  • Page 16 JP12 Installed PINS 13 & 14 Connected (HS, VS) TO MONITOR USE RM’S CONTROLS? Contrast If necessary Brightness CHAPTER 3: Configuring the ACS235A Table 3-1. Jumper Settings Standard VGA Source to RGB Monitor Removed Removed Removed Installed on left-hand posts...

  • Page 17: Setting The Jumpers In The Local Module (Optional)

    (The jumper locations on the motherboard are shown in Figure 3-1.) Then set your desired jumpers as described in Sections 3.2.1, 3.2.2, 3.2.3, and/or 3.2.4, and then close the unit back up. Figure 3-1. The locations of the ACS235A Local Module’s jumpers. JP10 JP11...
  • Page 18 VGA Signals (Factory Defaults) Removed JP10 Removed JP11 Jumper on left- hand posts Figure 3-2. Setting the VGA/RGB jumpers. CHAPTER 3: Configuring the ACS235A (JP6, JP10, JP11) Jumper on right- RGB Signals Installed Installed hand posts...

  • Page 19: Core-Diameter Jumper Jp5

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.2.2 VGA- -RGB S For most applications you should leave this jumper installed. However, if you are using the Extender to connect a VGA video card or other VGA source to an RGB monitor, remove this jumper as shown in Figure 3-3. (This causes the Local Module to generate a CSYNC signal for transmission to the Remote Module.) Use existing sync Figure 3-3.

  • Page 20: Setting The Jumpers In The Remote Module (Optional)

    Figure 3-6.) Then set your desired jumpers as described in Sections 3.3.1, 3.3.2, 3.3.3, and/or 3.3.4, and then close the unit back up. Figure 3-6. The locations of the ACS235A Remote Module’s jumpers. CHAPTER 3: Configuring the ACS235A...

  • Page 21: The Sync - On -Color Jumpers (Jp1, Jp2, And Jp3)

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.3.1 T OLOR The Local Module of the ServSwitch Brand Fiber KVM Extender adds synchronization signals to the color signals for transmission across the fiber link. If you are using a VGA monitor (which is probably not equipped to handle sync on color), you will want the Remote Module to use its decoupling diodes to strip this sync information from the color signals, so you will leave the jumper posts at locations JP1, JP2, and JP3 empty (the default setting) so that these diodes will be...
  • Page 22 Whichever way you set these jumpers, make sure that jumper JP3 in the Local Module is set the same way. With AGC (factory default) Jumpers on left-hand posts Figure 3-8. Setting gain-control jumper bank JP8. CHAPTER 3: Configuring the ACS235A UMPER Jumpers on right-hand posts Without AGC...

  • Page 23: Sync-Polarity Jumper Jp12

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.3.3 VSYNC E NABLE ISABLE It is possible to use the Extender to connect a VGA monitor to a computer that outputs RGB video that superimposes CSYNC on the green signal. In this situation, depending on the computer, the Remote Module might express only CSYNC (composite sync) on the HSYNC lead of its VGA connector, or it might express both CSYNC on HSYNC and VSYNC (vertical sync) on the VSYNC lead.

  • Page 24: Setting The Jumpers In The Local Module (Optional)

    4. Configuring the ACS236A This chapter describes how to configure the Sun model of the ServSwitch™ Brand Fiber KVM Extender (ACS236A). If your Extender is the PC model (ACS235A), see Chapter 3. 4.1 Setting the Jumpers in the Local Module (Optional) There are four user-settable jumpers inside the Local Module of the ServSwitch Brand Fiber KVM Extender.
  • Page 25 SERVSWITCH™ BRAND FIBER KVM EXTENDERS Figure 4-1. The locations of the ACS236A Local Module’s jumpers. 4.1.1 T IDEO ANDLING Jumpers JP2 and JP10 in the Local Module control how the Extender handles video signals, depending on whether the computer outputs VGA signals to the Extender’s HD15 connectors or legacy Sun signals to the Extender’s 13W3 connectors, as well as what type of signal input the monitor accepts.

  • Page 26: Core-Diameter Jumper Jp5

    VGA in, VGA out (factory default) Removed JP10 Installed Figure 4-2. Setting video-handling jumpers JP2 and JP10. 4.1.2 L OCAL ONTROL If you’ll be using automatic gain control (AGC) in your Extender system, leave the jumper ON the JP3 jumper posts. (We recommend this factory-default setting.) But if you’ll be controlling the gain manually (see Section 5.2), remove the jumper from these posts, as shown in Figure 4-3.

  • Page 27: Setting The Jumpers In The Remote Module (Optional)

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 4.2 Setting the Jumpers in the Remote Module (Optional) There are two user-settable jumpers inside the Remote Module of the ServSwitch Brand Fiber KVM Extender. They control these options: • Whether the Remote Module uses automatic (default) or manual gain control (jumper bank JP8).
  • Page 28 4.2.1 R EMOTE ONTROL If you’ll be using automatic gain control (AGC) in your Extender system, leave the jumpers ON the right-hand posts of each of the three pairs of JP8 jumper posts, as shown below. (This is the factory-default setting as well as the recommended setting.) But if you’ll be controlling the gain manually (see Section 6.2), which is necessary with VGA input and Sun output (see Section 4.1.1), move the jumper to the left-hand posts of each of the three JP8 jumper-post pairs, as shown in...
  • Page 29 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 4.2.2 VSYNC E NABLE ISABLE UMPER It is possible to use the Extender to connect a VGA monitor to a legacy Sun computer that outputs Sun video with CSYNC superimposed on the green signal. (If you do this, make sure that jumpers JP2 and JP10 in the Local Module are both installed;...

  • Page 30: Guidelines And Limitations For Attaching Equipment

    / parallel printer 8…28V/DC 13W3 Keyboard/ Mouse RS-232/ (V.24) 8…28V/DC Figure 5-1. Schematics of signal processing in ACS235A (top) and ACS236A (bottom) Extender systems. 5. Installation ACS235A SYNC polarity HSYNC- VSYNC- Stripper Stripper serial / parallel parallel /...

  • Page 31: Vga Monitor

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 5.1.1 CPU The ACS235A Extender supports IBM PC compatible desktop CPUs; it does not support laptops. A CPU must have these kinds of interfaces to work fully with the ACS235A Extender: • Video: VGA, SVGA, XGA, or XGA-2. (Also supports most CPUs that output RGB.) •...

  • Page 32: Keyboard And Mouse

    EYBOARD AND OUSE The ACS235A Extender’s keyboard and mouse interfaces are standard PS/2 type interfaces, so you can attach just about any standard PS/2 compatible keyboard and mouse to the Extender. Do not attach serial mice or bus mice to the Extender;...

  • Page 33: Connecting A Cpu Or Kvm Switch To The Local Module

    CPU or ServSwitch family KVM switch to the Extender’s Local Module: • The extension cable that comes with the ACS235A is a three-strand cable. The two outside strands carry keyboard and mouse data, and have 6-pin mini-DIN male connectors at both ends.
  • Page 34 Extender between that interface and the KVM-extension cable’s mouse-port connector. 3A. ACS235A: If you’re going to be using a parallel printer at the remote site: The included parallel-extension cable has only one strand; it has a DB25 male connector at one end and a DB25 female at the other.

  • Page 35: Connecting User Equipment Or A Kvm Switch To The Remote Module

    2. Plug the keyboard into the 6-pin or 8-pin mini-DIN female keyboard port on the Remote Module (the port labeled with the picture of a keyboard). ACS235A: Use a keyboard adapter such as FA211 if the keyboard is a PC/AT type with a 5-pin DIN connector on its cable.
  • Page 36 ACS235A: If the cable’s keyboard strand is 5-pin DIN PC/AT type, use a keyboard adapter such as our FA211. 4. ACS235A: Plug the PS/2 mouse strand of this cable into the 6-pin mini-DIN female mouse port on the Remote Module (the port labeled with the picture of a mouse).

  • Page 37: Running Fiber Cable Between The Local And Remote Modules

    Local and Remote Modules. • Outdoors (Extreme): First use our preterminated ServSwitch Fiber Patch Cord (product code EFN235 for ACS235A or EFN236 for ACS236A) to run from the Local or Remote Module to the demarc (demarcation point). Then use bulk armored outside-plant cable (such as product code EFN4070A-1000 for a 1000-ft.

  • Page 38: Connecting Power To The Local And Remote Modules

    One of the most common errors in cabling the Extender is to attach fiber strands “1” and “2” to the Remote Module backwards (strand 1 to port 2, strand 2 to port 1). Notice that while the fiber ports on the Local Module are arranged in left-to-right order as “R,”...

  • Page 39: Interpreting The Remote Module's 7-Segment Display

    LEDs on the units’ rear panels should light. (If either LED on a Module fails to light, that Module has had an internal failure; contact Black Box Technical Support as described in Section 7.2.) While the Extender is ON, the Remote Module’s 7-segment display will continuously indicate system status;...
  • Page 40 H: HSYNC missing. Either there’s a problem with the green/HSYNC fiber or the CPU-side extension cables, or a jumper has been set wrong in the ACS235A Local Module—probably JP6 or JP11 (see Section 3.2.1). V: VSYNC missing. Either there’s a problem with the blue/VSYNC fiber or the CPU-side extension cables, or a jumper has been set wrong in the Local Module, probably JP10 or JP11 (see Section 3.2.1 or 4.1.1).

  • Page 41: Making Video Adjustments With The Remote Module's User Controls

    If this doesn’t work, you might try disabling the Extenders’ automatic gain control (see Sections 3.2.2 and 3.3.2 for the ACS235A PC model or Sections 4.1.2 and 4.2.1 for the ACS236A Sun model), then using a tiny screwdriver to turn any of the three gain-control screwdials with which you can manually control the gain of the red, green, and blue color signals.

  • Page 42: Things To Try First

    7. Troubleshooting 7.1 Things to Try First Here are a few problems that sometimes occur in a ServSwitch™ Brand Fiber KVM Extender system, along with possible causes and solutions. Problem: I can’t get a picture on my monitor screen. Check the LEDs on the rear panels of the Extender units: •...

  • Page 43: Shipping And Packaging

    • Package it carefully. We recommend that you use the original container. • If you are returning the unit, include everything you received with it. Before you ship the unit back to Black Box for repair or return, contact us to get a Return Authorization (RA) number.

  • Page 44: A.1 Connectors On Both Models

    Appendix A: Pinouts Here are the pinouts for the ServSwitch™ Brand Fiber KVM Extender’s device and power connectors. A.1 Connectors on Both Models A.1.1 T VGA V IDEO ONNECTORS On Local Module (HD15 male) Signal Green Blue Red Ground Green Ground A.1.2 T OWER ONNECTOR...

  • Page 45: A.2 Connectors On The Acs235A

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS A.2 Connectors on the ACS235A A.2.1 T PS/2 K EYBOARD A.2.2 T PS/2 M OUSE ONNECTOR On Local and Remote Modules (6-pin mini-DIN female) Signal Keyboard Data (No Connection) Keyboard Ground VCC (+5 VDC) Keyboard Clock...
  • Page 46 A.2.3 T ARALLEL RINTER On Local Module (DB25 male) 18-25 ONNECTORS Signal Direction \STROBE To printer DATA1 To printer DATA2 To printer DATA3 To printer DATA4 To printer DATA5 To printer DATA6 To printer DATA7 To printer DATA8 To printer \ACK To computer BUSY...

  • Page 47: A.3 Connectors On The Acs236A

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS A.3 Connectors on the ACS236A A.3.1 T IDEO ONNECTORS On Local Module (HD15 male) Signal Green Blue (Other pins are not connected.) A.3.2 T EYBOARD OUSE ONNECTOR On Local and Remote Modules (8-pin mini-DIN female) Signal Ground Ground...
  • Page 48 A.3.3 T ERIAL ONNECTORS On Local Module Signal (No connection) RD (Receive Data) TD (Transmit Data) DTR (Data Terminal Ready) SGND (Signal Ground) DSR (Data Set Ready) RTS (Request to Send) CTS (Clear to Send) (No connection) On Remote Module (DB9 female) Direction Input to Remote, output from Local...

  • Page 49: Appendix B: Rackmounting The Extender

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS Rackmounting the Extender If you want to mount one or two ServSwitch™ Brand Fiber KVM Extender Local or Remote Modules in a standard 19" equipment rack, you can use the Single-Module Rackmount Kit (product code RMK235) or the Dual-Module Rackmount Kit (RMK235-2) respectively.
  • Page 50 4. Using the included hex tool, screw four of the included hex screws through the holes in the flanges and into the Module to secure the Module to the frame. 5. Dual-Module Kit only: Repeat steps 2 through 4 for the other Module. 6.
  • Page 51 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 52 ® Macintosh multiple users with different access levels? 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...
  • Page 53 The Extender was tested in a typical configuration. TRADEMARKS USED IN THIS MANUAL BLACK BOX and the trademark, of Black Box Corporation. Apple and Macintosh are registered trademarks of Apple Computer, Inc. ST is a registered trademark of AT&T IBM, PC/AT, and PS/2 are registered trademarks of International Business Machines Corporation.
  • Page 54 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 55 SERVSWITCH™ BRAND FIBER KVM EXTENDERS NORMAS OFICIALES MEXICANAS (NOM) 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. 3.
  • Page 56 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.

  • Page 57: The Sync-On-Color Jumpers (Jp1, Jp2, And Jp3)

    2. Introduction ... 11 2.1 Overview ... 11 2.2 The Complete Package ... 12 3. Configuring the ACS235A ... 13 3.1 Configuring for RGB Video ... 13 3.1.1 VGA vs. RGB Signaling ... 13 3.1.2 VGA Video Card to RGB Monitor (VGA to RGB Conversion) ...

  • Page 58: A.1.1 The Vga Video Connectors

    5.1.3 RGB Monitor or Legacy Sun Monitor ... 30 5.1.4 Keyboard and Mouse ... 31 5.1.5 Parallel Printer (Optional with ACS235A) ... 31 5.1.6 Serial Device (Optional with ACS236A) ... 31 5.2 Connecting a CPU or KVM Switch to the Local Module ... 32 5.3 Connecting User Equipment or a KVM Switch to the...

  • Page 59: Specifications

    Refresh Rate — Up to 75 Hz Keyboard Current Consumption — Up to 100 mA Data Rate — ACS235A’s parallel interface: Transparent to data rates up to 20,000 cps; ACS236A’s serial interface: Transparent to data rates up to 38,400 bps Optical 850 nm Wavelength —...
  • Page 60 5 dB Maximum 1000 m (3281 ft.) between Extender’s Local and Remote Distance — Modules User Controls — Both ACS235A and ACS236A, rear-mounted on the Remote Module: (2) Rear-mounted dials for contrast and brightness; (3) Rear-mounted trimpots for adjusting color-signal ACS235A:...
  • Page 61 SERVSWITCH™ BRAND FIBER KVM EXTENDERS Connectors (continued) — ACS236A: Front-mounted on Local Module: Front-mounted on Remote Module: Temperature Tolerance — Operating: 50 to 113˚F (10 to 45˚C); Storage: 23 to 131˚F (–5 to +55˚C) Humidity Tolerance — Up to 80% noncondensing Power —...
  • Page 62 1000 m (3281 ft.) away. There are two models of the Extender. The PC version (product code ACS235A) extends KVM distance for IBM PC compatible computers. The Sun version (product code ACS236A) extends KVM distance for Sun Microsystems Each model consists of two main components: a Local Module that you’ll attach...
  • Page 63 • (1) 10-ft. (3-m) keyboard/video/mouse CPU-extension cable with an HD15 female video connector and an 8-pin mini-DIN keyboard/mouse connector (equivalent to our product code EHN236-0010). If anything is missing, contact Black Box right away. If the package has been damaged, contact both Black Box and the shipping carrier. ®...

  • Page 64: Configuring The Acs235A

    3. Configuring the ACS235A This chapter describes how to configure the PC model of the ServSwitch™ Brand Fiber KVM Extender (ACS235A). If your Extender is the Sun model (ACS236A), see Chapter 4. 3.1 Configuring for RGB Video In normal configuration at delivery time, the Extender units are configured to carry video from a VGA source to a VGA monitor.
  • Page 65 Remote Module’s JP9 jumper; the monitor should work fine using CSYNC only. See Section 3.3.3. Siemens ® users: The Extender can process CP581 signals, but this requires special cabling. Call Black Box for technical support. CAUTION! RGB M ONITOR VGA M...
  • Page 66 JP12 Installed PINS 13 & 14 Connected (HS, VS) TO MONITOR USE RM’S CONTROLS? Contrast If necessary Brightness CHAPTER 3: Configuring the ACS235A Table 3-1. Jumper Settings Standard VGA Source to RGB Monitor Removed Removed Removed Installed on left-hand posts...
  • Page 67 (The jumper locations on the motherboard are shown in Figure 3-1.) Then set your desired jumpers as described in Sections 3.2.1, 3.2.2, 3.2.3, and/or 3.2.4, and then close the unit back up. Figure 3-1. The locations of the ACS235A Local Module’s jumpers. JP10 JP11...
  • Page 68 VGA Signals (Factory Defaults) Removed JP10 Removed JP11 Jumper on left- hand posts Figure 3-2. Setting the VGA/RGB jumpers. CHAPTER 3: Configuring the ACS235A (JP6, JP10, JP11) Jumper on right- RGB Signals Installed Installed hand posts...
  • Page 69 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.2.2 VGA- -RGB S For most applications you should leave this jumper installed. However, if you are using the Extender to connect a VGA video card or other VGA source to an RGB monitor, remove this jumper as shown in Figure 3-3. (This causes the Local Module to generate a CSYNC signal for transmission to the Remote Module.) Use existing sync Figure 3-3.
  • Page 70 Figure 3-6.) Then set your desired jumpers as described in Sections 3.3.1, 3.3.2, 3.3.3, and/or 3.3.4, and then close the unit back up. Figure 3-6. The locations of the ACS235A Remote Module’s jumpers. CHAPTER 3: Configuring the ACS235A...
  • Page 71 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.3.1 T OLOR The Local Module of the ServSwitch Brand Fiber KVM Extender adds synchronization signals to the color signals for transmission across the fiber link. If you are using a VGA monitor (which is probably not equipped to handle sync on color), you will want the Remote Module to use its decoupling diodes to strip this sync information from the color signals, so you will leave the jumper posts at locations JP1, JP2, and JP3 empty (the default setting) so that these diodes will be...
  • Page 72 Whichever way you set these jumpers, make sure that jumper JP3 in the Local Module is set the same way. With AGC (factory default) Jumpers on left-hand posts Figure 3-8. Setting gain-control jumper bank JP8. CHAPTER 3: Configuring the ACS235A UMPER Jumpers on right-hand posts Without AGC...
  • Page 73 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 3.3.3 VSYNC E NABLE ISABLE It is possible to use the Extender to connect a VGA monitor to a computer that outputs RGB video that superimposes CSYNC on the green signal. In this situation, depending on the computer, the Remote Module might express only CSYNC (composite sync) on the HSYNC lead of its VGA connector, or it might express both CSYNC on HSYNC and VSYNC (vertical sync) on the VSYNC lead.

  • Page 74: Configuring The Acs236A

    4. Configuring the ACS236A This chapter describes how to configure the Sun model of the ServSwitch™ Brand Fiber KVM Extender (ACS236A). If your Extender is the PC model (ACS235A), see Chapter 3. 4.1 Setting the Jumpers in the Local Module (Optional) There are four user-settable jumpers inside the Local Module of the ServSwitch Brand Fiber KVM Extender.
  • Page 75 SERVSWITCH™ BRAND FIBER KVM EXTENDERS Figure 4-1. The locations of the ACS236A Local Module’s jumpers. 4.1.1 T IDEO ANDLING Jumpers JP2 and JP10 in the Local Module control how the Extender handles video signals, depending on whether the computer outputs VGA signals to the Extender’s HD15 connectors or legacy Sun signals to the Extender’s 13W3 connectors, as well as what type of signal input the monitor accepts.
  • Page 76 VGA in, VGA out (factory default) Removed JP10 Installed Figure 4-2. Setting video-handling jumpers JP2 and JP10. 4.1.2 L OCAL ONTROL If you’ll be using automatic gain control (AGC) in your Extender system, leave the jumper ON the JP3 jumper posts. (We recommend this factory-default setting.) But if you’ll be controlling the gain manually (see Section 5.2), remove the jumper from these posts, as shown in Figure 4-3.
  • Page 77 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 4.2 Setting the Jumpers in the Remote Module (Optional) There are two user-settable jumpers inside the Remote Module of the ServSwitch Brand Fiber KVM Extender. They control these options: • Whether the Remote Module uses automatic (default) or manual gain control (jumper bank JP8).
  • Page 78 4.2.1 R EMOTE ONTROL If you’ll be using automatic gain control (AGC) in your Extender system, leave the jumpers ON the right-hand posts of each of the three pairs of JP8 jumper posts, as shown below. (This is the factory-default setting as well as the recommended setting.) But if you’ll be controlling the gain manually (see Section 6.2), which is necessary with VGA input and Sun output (see Section 4.1.1), move the jumper to the left-hand posts of each of the three JP8 jumper-post pairs, as shown in...
  • Page 79 SERVSWITCH™ BRAND FIBER KVM EXTENDERS 4.2.2 VSYNC E NABLE ISABLE UMPER It is possible to use the Extender to connect a VGA monitor to a legacy Sun computer that outputs Sun video with CSYNC superimposed on the green signal. (If you do this, make sure that jumpers JP2 and JP10 in the Local Module are both installed;...

  • Page 80: Installation

    / parallel printer 8…28V/DC 13W3 Keyboard/ Mouse RS-232/ (V.24) 8…28V/DC Figure 5-1. Schematics of signal processing in ACS235A (top) and ACS236A (bottom) Extender systems. 5. Installation ACS235A SYNC polarity HSYNC- VSYNC- Stripper Stripper serial / parallel parallel /...

  • Page 81: Cpu

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS 5.1.1 CPU The ACS235A Extender supports IBM PC compatible desktop CPUs; it does not support laptops. A CPU must have these kinds of interfaces to work fully with the ACS235A Extender: • Video: VGA, SVGA, XGA, or XGA-2. (Also supports most CPUs that output RGB.) •...

  • Page 82: Keyboard And Mouse

    EYBOARD AND OUSE The ACS235A Extender’s keyboard and mouse interfaces are standard PS/2 type interfaces, so you can attach just about any standard PS/2 compatible keyboard and mouse to the Extender. Do not attach serial mice or bus mice to the Extender;...

  • Page 83: Connecting A Cpu Or Kvm Switch To The Local Module

    CPU or ServSwitch family KVM switch to the Extender’s Local Module: • The extension cable that comes with the ACS235A is a three-strand cable. The two outside strands carry keyboard and mouse data, and have 6-pin mini-DIN male connectors at both ends.
  • Page 84 Extender between that interface and the KVM-extension cable’s mouse-port connector. 3A. ACS235A: If you’re going to be using a parallel printer at the remote site: The included parallel-extension cable has only one strand; it has a DB25 male connector at one end and a DB25 female at the other.

  • Page 85: Remote Module

    2. Plug the keyboard into the 6-pin or 8-pin mini-DIN female keyboard port on the Remote Module (the port labeled with the picture of a keyboard). ACS235A: Use a keyboard adapter such as FA211 if the keyboard is a PC/AT type with a 5-pin DIN connector on its cable.
  • Page 86 ACS235A: If the cable’s keyboard strand is 5-pin DIN PC/AT type, use a keyboard adapter such as our FA211. 4. ACS235A: Plug the PS/2 mouse strand of this cable into the 6-pin mini-DIN female mouse port on the Remote Module (the port labeled with the picture of a mouse).

  • Page 87: Running Fiber Cable Between The Local And Remote Modules

    Local and Remote Modules. • Outdoors (Extreme): First use our preterminated ServSwitch Fiber Patch Cord (product code EFN235 for ACS235A or EFN236 for ACS236A) to run from the Local or Remote Module to the demarc (demarcation point). Then use bulk armored outside-plant cable (such as product code EFN4070A-1000 for a 1000-ft.

  • Page 88: Connecting Power To The Local And Remote Modules

    One of the most common errors in cabling the Extender is to attach fiber strands “1” and “2” to the Remote Module backwards (strand 1 to port 2, strand 2 to port 1). Notice that while the fiber ports on the Local Module are arranged in left-to-right order as “R,”...

  • Page 89: Operation

    LEDs on the units’ rear panels should light. (If either LED on a Module fails to light, that Module has had an internal failure; contact Black Box Technical Support as described in Section 7.2.) While the Extender is ON, the Remote Module’s 7-segment display will continuously indicate system status;...
  • Page 90 H: HSYNC missing. Either there’s a problem with the green/HSYNC fiber or the CPU-side extension cables, or a jumper has been set wrong in the ACS235A Local Module—probably JP6 or JP11 (see Section 3.2.1). V: VSYNC missing. Either there’s a problem with the blue/VSYNC fiber or the CPU-side extension cables, or a jumper has been set wrong in the Local Module, probably JP10 or JP11 (see Section 3.2.1 or 4.1.1).

  • Page 91: Remote Module's User Controls

    If this doesn’t work, you might try disabling the Extenders’ automatic gain control (see Sections 3.2.2 and 3.3.2 for the ACS235A PC model or Sections 4.1.2 and 4.2.1 for the ACS236A Sun model), then using a tiny screwdriver to turn any of the three gain-control screwdials with which you can manually control the gain of the red, green, and blue color signals.

  • Page 92: Troubleshooting

    7. Troubleshooting 7.1 Things to Try First Here are a few problems that sometimes occur in a ServSwitch™ Brand Fiber KVM Extender system, along with possible causes and solutions. Problem: I can’t get a picture on my monitor screen. Check the LEDs on the rear panels of the Extender units: •...

  • Page 93: Calling Black Box

    • Package it carefully. We recommend that you use the original container. • If you are returning the unit, include everything you received with it. Before you ship the unit back to Black Box for repair or return, contact us to get a Return Authorization (RA) number.

  • Page 94: Appendix A: Pinouts

    Appendix A: Pinouts Here are the pinouts for the ServSwitch™ Brand Fiber KVM Extender’s device and power connectors. A.1 Connectors on Both Models A.1.1 T VGA V IDEO ONNECTORS On Local Module (HD15 male) Signal Green Blue Red Ground Green Ground A.1.2 T OWER ONNECTOR...

  • Page 95: Connectors On The Acs235A

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS A.2 Connectors on the ACS235A A.2.1 T PS/2 K EYBOARD A.2.2 T PS/2 M OUSE ONNECTOR On Local and Remote Modules (6-pin mini-DIN female) Signal Keyboard Data (No Connection) Keyboard Ground VCC (+5 VDC) Keyboard Clock...

  • Page 96: The Parallel Printer Connectors

    A.2.3 T ARALLEL RINTER On Local Module (DB25 male) 18-25 ONNECTORS Signal Direction \STROBE To printer DATA1 To printer DATA2 To printer DATA3 To printer DATA4 To printer DATA5 To printer DATA6 To printer DATA7 To printer DATA8 To printer \ACK To computer BUSY...

  • Page 97: Connectors On The Acs236A

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS A.3 Connectors on the ACS236A A.3.1 T IDEO ONNECTORS On Local Module (HD15 male) Signal Green Blue (Other pins are not connected.) A.3.2 T EYBOARD OUSE ONNECTOR On Local and Remote Modules (8-pin mini-DIN female) Signal Ground Ground...

  • Page 98: The Serial Connectors

    A.3.3 T ERIAL ONNECTORS On Local Module Signal (No connection) RD (Receive Data) TD (Transmit Data) DTR (Data Terminal Ready) SGND (Signal Ground) DSR (Data Set Ready) RTS (Request to Send) CTS (Clear to Send) (No connection) On Remote Module (DB9 female) Direction Input to Remote, output from Local...

  • Page 99: Appendix B: Rackmounting The Extender

    SERVSWITCH™ BRAND FIBER KVM EXTENDERS Rackmounting the Extender If you want to mount one or two ServSwitch™ Brand Fiber KVM Extender Local or Remote Modules in a standard 19" equipment rack, you can use the Single-Module Rackmount Kit (product code RMK235) or the Dual-Module Rackmount Kit (RMK235-2) respectively.
  • Page 100 4. Using the included hex tool, screw four of the included hex screws through the holes in the flanges and into the Module to secure the Module to the frame. 5. Dual-Module Kit only: Repeat steps 2 through 4 for the other Module. 6.
  • Page 101 NOTES...
  • Page 102 NOTES...
  • Page 103 NOTES...

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