Instruction/ maintenance manual of the product SW487A-R2 Black Box
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6 x 4 Electr onic SCSI Switch AUGUST 2002 SW485A SW487A-R2 CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500 ) FREE technical support 24 hours.
1 FCC/IC RFI ST A TEMENTS, EU DECLARA TION OF CONFORMITY FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO-FREQUENCY INTERFERENCE ST A TEMENTS This equipment generates, uses, and can radia.
2 6 x 4 ELECTRONIC SCSI SWITCH NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY ST A TEMENT 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.
3 NOM ST A TEMENT 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 maner.
4 6 x 4 ELECTRONIC SCSI SWITCH TRADEMARKS USED IN THIS MANUAL BLACK BOX and the logo are registered trademarks of Black Box Corporation. AppleTalk, EtherTalk, and Macintosh are registered trademarks of Apple Computer, Inc. DEC and LAT are trademarks of Compaq Corporation.
5 T ABLE OF CONTENTS Contents Chapter Page 1. Specifications ..........................................................................................................7 2. Introduction ..................................................................
6 6 x 4 ELECTRONIC SCSI SWITCH Chapter Page 5. Configuration and Operation (continued) 5.8 Graphical User Interface (GUI) ................................................................32 5.9 Connecting Multiple SCSI Switches ........................
7 CHAPTER 1: Specifications 1. Specifications SCSI Interface Maximum Port Switching Delay : 3 ns Maximum Signal Skew : 2 ns Internal Terminator Power : 1 amp Rear-Panel Connectors : 68-pin high-densit.
8 6 x 4 ELECTRONIC SCSI SWITCH Low-V oltage Differential (L VD) SCSI (SW487A-R2 Only) Maximum Data Rate (8-bit Narrow) : 40 MBps for Ultra2 SCSI (narrow transfers aren’t officially supported in the Ultra160 SCSI standard) Maximum Data Rate (16-bit Wide) : 160 MBps Maximum Port Cable Length : 25 meters (82 ft.
9 CHAPTER 1: Specifications Physical Temperature : 32 to 149°F (0 to 65°C) Humidity : Up to 90% noncondensing Power : 105 to 240 VAC ± 10% (25 watts) Size : 3.
10 6 x 4 ELECTRONIC SCSI SWITCH 2. Introduction 2.1 About the SCSI Switch The 6 x 4 Electronic SCSI Switch is a high-performance electronic crosspoint switch for use with the SCSI (Small Computer System Interface) bus.
11 CHAPTER 2: Introduction 2.2.1 LCD P ANEL The 6 x 4 Electronic SCSI Switch features an easy-to-use, menu-driven LCD panel with soft-touch MENU, ENTER, and directional keys. The LCD is lighted, which allows for easy viewing and operation. 2.2.2 F RONT -P ANEL C ONTROLS • Set and configure SCSI ports.
12 6 x 4 ELECTRONIC SCSI SWITCH 2.3.2 G ENERAL H ARDWARE D ESCRIPTION The 6 x 4 Electronic SCSI Switch’s rear panel identifies each of the independent SCSI ports. SCSI ports A, B, C, and D have two daisychained connectors per port, and SCSI ports 1, 2, 3, 4, 5, and 6 have single connectors for installation of SCSI devices.
13 CHAPTER 2: Introduction You can selectively enable or disable any internal terminator to meet system configurations and requirements. Figure 2-1. Electronic SCSI Switch block diagram.
14 6 x 4 ELECTRONIC SCSI SWITCH Figure 2-2. T ypical switch installation. SCSI Switch (SW487A-R2).
15 CHAPTER 3: Installation 3. Installation 3.1 What’ s Included • (1) 6 x 4 Electronic SCSI Switch • (1) AC power cord • (1) 10-ft. (3-m) DB9-male-to-DB9-female RS-232 adapter • (1) DB9-male.
16 6 x 4 ELECTRONIC SCSI SWITCH 3.5 SCSI Interface Cabling Both versions of the 6 x 4 Electronic SCSI Switch are supplied with 68-pin shielded high-density SCSI-2 connectors. Single-ended devices can have cable lengths up to 20 ft. (6 m). Differential or low-voltage differential (LVD) devices can be connected with up to 82 ft.
17 CHAPTER 4: Operator Controls and Indicators 4. Operator Controls and Indicators 4.1 AC Power Switch The AC power switch is located on the Switch’s rear panel. Move it to the “|” position to turn on the SCSI Switch. NOTE Always turn on the SCSI Switch before powering SCSI devices and computers.
18 6 x 4 ELECTRONIC SCSI SWITCH 4.2.2 K EYPAD Use the keypad to select menu and setup parameters for the SCSI Switch. • MENU: Returns to the SCSI Switch setup and configuration menu. • ENTER: Selects the highlighted setup parameter. • UP, DOWN, RIGHT, LEFT Arrows: Scrolls the cursor to enable menu selection.
19 CHAPTER 4: Operator Controls and Indicators 4.3 LCD Display Control Menus SET PORTS SET TERMINATION DISPLAY PORTS DISPLAY PORTS |A 1| A 2| A 3| A 4| A 5| A 6| |B 1| B 2| B 3| B 4| B 5| B 6| |C 1| C.
20 6 x 4 ELECTRONIC SCSI SWITCH SET SERIAL PORTS SET SWITCH NUMBER DISPLAY POWER TEMPERATURE SET TEMP LIMIT SET TEMP LIMIT MAX +40°C CURRENT TEMP +26.
21 CHAPTER 4: Operator Controls and Indicators DISPLAY BUS ACTIVITY FRONT PANEL LOCK DISPLAY VERSION In the DISPLAY VERSION panel: • “HVD,” “LVD,” or “SE” at bottom left indicates the current SCSI-bus interface mode. • “x” at top right indicates that the serial ports are locked.
22 6 x 4 ELECTRONIC SCSI SWITCH 4.4 SCSI Switch Port Configuration The 6 x 4 Electronic SCSI Switch has an internal memory device that retains the current configuration and setup information. Switch port, termination, serial port, and control parameters are saved as they are entered on the front panel.
23 CHAPTER 5: Configuration and Operation 5. Configuration and Operation 5.1 SCSI Cable Interface Requirements The 6 x 4 Electronic SCSI Switch can be installed at any point on the SCSI bus. Always use high-quality cables for optimum computer performance and reliability.
24 6 x 4 ELECTRONIC SCSI SWITCH 5.3 Selecting Internal T erminator Power Onboard SCSI Switch terminators can be powered by internal 5-volt power or externally from SCSI-bus “termination power” (TERMPWR). Figure 5-1. Inter nal ter minator-power jumpers.
25 CHAPTER 5: Configuration and Operation 5.5 Serial-Port Pinout The 6 x 4 Electronic SCSI Switch has two RS-232 serial ports, using female DB9 connectors, which allow external control of the switch. The connectors are compatible with standard RS-232 modem cables.
26 6 x 4 ELECTRONIC SCSI SWITCH 5.6 LAN/Serial-Port Commands You can use simple ASCII-character commands to control the SCSI Switch through either its LAN port (by opening a socket connection to port 3001) or one of its RS-232 serial ports. For serial control, set your computer’s serial port this way: a.
27 CHAPTER 5: Configuration and Operation T able 5-4. SCSI Switch commands. Command Cmd. Example Example Result or Char . Command String Response Select Port K <cr>//|A1K<cr> Report Port S.
28 6 x 4 ELECTRONIC SCSI SWITCH T able 5-4 (continued). SCSI Switch commands. Command Cmd. Example Example Result or Chars. Command String Response Enable/Disable Alarm OA <cr>//|OA0<cr> A.
29 CHAPTER 5: Configuration and Operation E XPANDED L IST OF C OMMANDS : a. Select SCSI Port Matrix: example command: <cr>//|A3B2D5K<cr> report: none NOTE K - Connects specified ports, but also breaks former connections and maintains proper termination as per SCSI rules.
30 6 x 4 ELECTRONIC SCSI SWITCH i. Report Temperature : example command: <cr>//|t<cr> example report: //|t+19.5 +19.5 = +19.5˚C, +67˚F j.
31 CHAPTER 5: Configuration and Operation p. Set Switch ( Device ) Number: example command: <cr>//|ODxx<cr> xx = ASCII representation of decimal value from 01 through 32 report: none q.
32 6 x 4 ELECTRONIC SCSI SWITCH 5.7 ASCII Character Reference for SCSI Switch Box Selection Switch # 12345678 ASCII | } ~ <DEL> ` a b c Switch # 9 10 11 12 13 14 15 16 ASCII d e f g h i j k Switch # 17 18 19 20 21 22 23 24 ASCII l m nopqr s Switch # 25 26 27 28 29 30 31 32 ASCII t u v w xyz{ 5.
33 CHAPTER 5: Configuration and Operation 5.9 Connecting Multiple SCSI Switches Up to thirty-two SCSI Switches can be controlled by a single RS-232 serial interface. To operate in this configuration, set the serial ports to operate in daisychained mode.
34 6 x 4 ELECTRONIC SCSI SWITCH 3. Make sure that mounting the SCSI Switch in a rack does not cause a hazardous condition because of uneven mechanical loading.
35 CHAPTER 5: Configuration and Operation 5.12 Network Control of SCSI Switch The 6 x 4 Electronic SCSI Matrix Switch may be controlled over a TCP/IP network through its LAN port. 5.12.1 LAN-P ORT C ONFIGURATION You can remotely control the SCSI Switch through a standard 10-Mbps Ethernet connection running TCP/IP.
36 6 x 4 ELECTRONIC SCSI SWITCH 5.12.2 A PCONCFG U TILITY The apconcfg.exe utility is used to configure the TCP/IP address. This utility is provided on the included CD-ROM. You can reconfigure the IP address by using the IP Configuration Utility. Run apconcfg.
37 CHAPTER 5: Configuration and Operation 5.12.3 A PCONCMD U TILITY The apconcmd.exe utility enables the user to set switch parameters through the LAN port. This utility is located on the CD-ROM provided with your SCSI Switch. To change switch settings and termination for an SCSI Switch, run (at a DOS prompt) APCONCMD.
38 6 x 4 ELECTRONIC SCSI SWITCH 6. SCSI T echnical Information 6.1 SCSI Basics 6.1.1 SCSI-1 The original specification supports data transfers up to 5 MB per second on an 8-bit wide parallel data bus. SCSI-1 standards had some incompatibility problems between host adapters and peripheral devices.
39 CHAPTER 6: SCSI T echnical Information 6.1.5 C OMMON P ROBLEMS The majority of problems encountered with SCSI-bus installations are due to unbalanced or improper impedances on the SCSI-bus transmission cables caused by varying manufacturers’ peripheral devices.
40 6 x 4 ELECTRONIC SCSI SWITCH • If the last device on the chain has two SCSI connectors, attach the cable to one and a terminator to the other. Otherwise you’ll have an open connector that may cause noise on the SCSI chain. • Always turn off the power to your computer and SCSI devices before swapping cables or moving devices around.
41 CHAPTER 6: SCSI T echnical Information has the highest priority during the Arbitration phase. Bit number, significance, and priority decrease downward to DB0. A data bit is defined as a one when the signal value is true and as a zero when the signal value is false.
42 6 x 4 ELECTRONIC SCSI SWITCH T able 6-1 (continued). SCSI connector assignments for single-ended (SE) 16-bit SCSI (wide). Signal Name Pin Number Signal Name Pin Number GROUND 29 -REQ 63 GROUND 30 -I/O 64 GROUND 31 -DB8 65 GROUND 32 -DB9 66 GROUND 33 -DB10 67 GROUND 34 -DB11 68 T able 6-2.
43 CHAPTER 6: SCSI T echnical Information T able 6-2 (continued). SCSI connector assignments for dif ferential 16-bit SCSI (wide). Signal Connector Signal Connector Name Pin Number Name Pin Number +BS.
44 6 x 4 ELECTRONIC SCSI SWITCH T able 6-3 (continued). SCSI connector assignments for low-voltage dif ferential (L VD) 16-bit SCSI (wide). Signal Connector Signal Connector Name Pin Number Name Pin N.
45 CHAPTER 6: SCSI T echnical Information T able 6-4. SCSI speed suppor t map. ST A T erm Maximum Bus Length (M) Maximum Devices SE HVD L VD SCSI-1 6 25 — 8 Fast SCSI 6 25 — 8 Fast Wide SCSI 6 25 — 16 Ultra SCSI 1.5 25 — 8 Ultra SCSI 3 — — 4 Wide Ultra SCSI — 25 — 16 Wide Ultra SCSI 1.
46 6 x 4 ELECTRONIC SCSI SWITCH To access jumper options: Remove the six screws on the bottom of the unit. Then lift off the cover. Figure 6-1. SCSI Switch component placement. • Internal termination jumper block: E1 through E8, E29, E30 (see Section 5.
47 7. T roubleshooting 7.1 Calling Black Box If you determine that your 6 x 4 Electronic SCSI Switch is malfunctioning, do not attempt to alter or repair the unit . It contains no user-serviceable parts. Contact Black Box at 724-746-5500. Before you do, make a record of the history of the problem.
48 6 x 4 ELECTRONIC SCSI SWITCH DISCLAIMERS AND NOTICES The manufacturer specifically disclaims the implied warranties for this product of merchantability and fitness for a particular purpose. Some states and provinces do not allow limitations on how long an implied warranty lasts, so the above limitation or exclusion might not apply to you.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 2002. Black Box Corporation. All rights reserved..
An important point after buying a device Black Box SW487A-R2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Black Box SW487A-R2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Black Box SW487A-R2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Black Box SW487A-R2 you will learn all the available features of the product, as well as information on its operation. The information that you get Black Box SW487A-R2 will certainly help you make a decision on the purchase.
If you already are a holder of Black Box SW487A-R2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Black Box SW487A-R2.
However, one of the most important roles played by the user manual is to help in solving problems with Black Box SW487A-R2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Black Box SW487A-R2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
