Black Box SW485A User Manual Download

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6 x 4 Electronic 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 a day, 7 days a week: Call

724-746-5500

or fax

724-746-0746

Mailing address:

Black Box Corporation

, 1000 Park Drive, Lawrence, PA 15055-1018

Web site:

www.blackbox.com

• E-mail:

[email protected]

Summary of Contents for SW485A

Page 1: ...der toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 FREE technical 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 Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com ...

Page 2: ...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 This digital apparatus does not exceed the Class A li...

Page 3: ...El aparato 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 ...

Page 4: ...ir 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 objetos 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 ...

Page 5: ...ion Microsoft Windows and Windows NT are registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries IPX is a trademark and NetWare is a registered trademark of Novell Incorporated UL is a registered trademark of Underwriters Laboratories Incorporated UNIX is a registered trademark of UNIX System Laboratories Inc Any other trademarks mentioned in this m...

Page 6: ...Interface Cabling 16 3 6 RS 232 Serial Port Cabling 16 3 7 Ethernet LAN Port Cabling 16 4 Operator Controls and Indicators 17 4 1 AC Power Switch 17 4 2 LCD Display Keypad and Indicators 17 4 2 1 LCD Display 17 4 2 2 Keypad 18 4 2 3 Indicators 18 4 3 LCD Display Control Menus 19 4 4 SCSI Switch Port Configuration 22 4 5 SCSI Switch Default Configuration 22 5 Configuration and Operation 23 5 1 SCSI...

Page 7: ...ns 34 5 12 Network Control of SCSI Switch 35 5 12 1 LAN Port Configuration 35 5 12 2 Cfgswitch Utility 36 5 12 3 Apconcmd Utility 37 6 SCSI Technical Information 38 6 1 SCSI Basics 38 6 1 1 SCSI 1 38 6 1 2 SCSI 2 38 6 1 3 SCSI 3 38 6 1 4 Signal Wiring 38 6 1 5 Common Problems 39 6 1 6 Passive Terminators 39 6 1 7 Active Terminators 39 6 2 SCSI Installation Tips 39 6 3 SCSI Interface Signal Descrip...

Page 8: ...1 and X3T9 2 Single Ended SE SCSI SW487A R2 Only Maximum Data Rate 8 bit Narrow 20 MBps Maximum Data Rate 16 bit Wide 40 MBps Maximum Port Cable Length 6 meters 20 ft Internal Terminator Impedance 100 ohms Terminator Disconnect Capacitance 4 pF Active Internal Bus Termination Differential DE SCSI SW485A Only Maximum Data Rate 8 bit Narrow 40 MBps Maximum Data Rate 16 bit Wide 80 MBps Maximum Port ...

Page 9: ...60 MBps Maximum Port Cable Length 25 meters 82 ft Internal Terminator Impedance 105 ohms Terminator Disconnect Capacitance 3 pF Active Internal Bus Termination Serial Interface Baud Rate 9600 or 19 200 bps Data Format No parity 8 bits 1 stop bit fixed Maximum Cable Length 15 meters 50 ft Rear Panel Connectors DB9 LAN Port Protocol TCP IP Interface Ethernet Data Rate 10 MBps Rear Panel Connector RJ...

Page 10: ...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 5 H x 16 8 W x 12 D 8 9 x 42 7 x 30 5 cm Weight 5 lb 2 3 kg ...

Page 11: ...istrator to remotely operate and control SCSI port configuration and termination report SCSI bus activity gather performance statistics and set internal temperature points for alarm notification Standard DOS or modem software can also be used to control the switch using simple ASCII control commands Up to thirty two 6 x 4 Electronic SCSI Switches can be connected together and controlled by one ser...

Page 12: ...temperature Set internal temperature alarm Set serial port configuration Display SCSI bus busy status Display port configuration 2 3 Technical Description 2 3 1 AVAILABLE SCSI SWITCH INTERFACES The 6 x 4 Electronic SCSI Switch is available in the following configurations Single ended LVD interface SW487A R2 Differential interface SW485A NOTE Make sure that the SCSI Switch you re installing is used...

Page 13: ...ers computers and peripherals in asynchronous and synchronous mode SW487A R2 also supports Ultra160 SCSI 160 MBps devices The SCSI Switch conforms to ANSI X3 131 and X3T9 2 specifications for single ended devices Disconnect and reselect functions are fully supported to ensure complete SCSI compatibility 2 3 4 SCSI SWITCH INSTALLATION Ports A B C and D are fully bidirectional to ports 1 2 3 4 5 and...

Page 14: ...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 SCSI Switch Ports ...

Page 15: ...14 6 x 4 ELECTRONIC SCSI SWITCH Figure 2 2 Typical switch installation SCSI Switch SW487A R2 ...

Page 16: ... in the USA For a power cord that will work in your country outside the USA call Black Box Technical Support 3 3 Switch Placement Place the SCSI Switch in a convenient location near the host computer or peripherals If you ll be placing it on a flat surface put the feet on the bottom of the switch If you ll be rackmounting it use the procedure in Section 5 10 Keep SCSI cable lengths short to provid...

Page 17: ...ed to convert from one bus type to the other Figure 3 1 The SCSI Switch s rear panel 3 6 RS 232 Serial Port Cabling The SCSI Switches have a DB9 female RS 232 serial port on their rear panel pinned so that you can use a straight through pinned DB9 male to female serial cable such as the one provided with the SCSI Switch to connect it to the DB9 male serial ports on a PC Pins 1 2 3 5 and 6 CD TD RD...

Page 18: ...he SCSI Switch before powering SCSI devices and computers This will ensure that devices are found when the system boots up 4 2 LCD Display Keypad and Indicators 4 2 1 LCD DISPLAY The LCD display shows the selection parameters available Figure 4 1 The LCD display s main menu SET TEMP LIMIT DISPLAY VERSION DISPLAY POWER TEMP FRONT PANEL LOCK SET SERIAL PORTS SET SWITCH NUMBER SET PORTS SET TERMINATI...

Page 19: ...e menu selection 4 2 3 INDICATORS The indicators provide SCSI Switch status information POWER Indicates that the SCSI Switch is powered BUSY Indicates that there is SCSI activity on one or more SCSI ports ALARM A visual and audible alarm indicates a failure of an internal power supply or that the SCSI Switch has exceeded the set temperature limit NOTE To disable the audible alarm press the front p...

Page 20: ... 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 2 C 3 C 4 C 5 C 6 D 1 D 2 D 3 D 4 D 5 D 6 SET TERMINATION A B C D 1 2 3 4 5 6 SET PORTS 1 2 3 4 5 6 A B C D ...

Page 21: ... SET SWITCH NUMBER DISPLAY POWER TEMPERATURE SET TEMP LIMIT SET TEMP LIMIT MAX 40 C CURRENT TEMP 26 0 C DISPLAY POWER TEMP PWR SUPPLY GOOD 25 5 C SET SWITCH NUMBER 01 USE UP DOWN KEYS SET SERIAL PORTS COM 1 9600 19200 COM 2 9600 19200 DAISY CHAIN Y N ...

Page 22: ...VD or SE at bottom left indicates the current SCSI bus interface mode x at top right indicates that the serial ports are locked LAN at bottom right indicates that the LAN port is active BLACK BOX SW485A S N 2 1 0 0 3 0 3 H V D V E R 2 1 1 2 1 2 4 L A N FRONT PANEL UNLOCKED ENTER PASSWORD TO LOCK 0 0 0 0 DISPLAY ACTIVITY 1 2 3 4 5 6 x ...

Page 23: ...setup information Switch port termination serial port and control parameters are saved as they are entered on the front panel 4 5 SCSI Switch Default Configuration The default configuration as shipped from the factory is defined below PORTS A1 B2 TERMINATION All Off SERIAL PORTS 9600 bps SWITCH NUMBER 01 TEMPERATURE ALARM 40 Celsius 104 F FRONT PANEL Unlocked password 0000 ...

Page 24: ...upports 160 MBps wide Ultra160 SCSI computers and peripherals The maximum cable distance for LVD should not exceed 82 ft 25 m total length Single Ended SE When operating with SE devices the SW487A R2 supports 40 MBps wide Ultra SCSI computers and peripherals The maximum cable distance for SE should not exceed 20 ft 6 m total length Black Box offers standard and custom SCSI cables for connecting th...

Page 25: ...rnal terminators to internal 5 volt power 5 4 Selecting External Terminator Power The SCSI Switch can supply external terminator power via an internal resettable fuse This fuse supplies 1 amp at 5 volts to the TERMPWR signal The SCSI Switch contains internal protection and will not be affected if other SCSI devices provide terminator power Figure 5 2 External terminator power jumpers Table 5 2 Jum...

Page 26: ...e configured to operate separate communications ports or as daisychained ports Daisychained mode allows one computer or terminal to communicate with multiple 6 x 4 Electronic SCSI Switches Table 5 3 Rear panel RS 232 connector pinout Signal Description DB9 Pin DB25 Pin DCD Data Carrier Detect 1 8 RXD Receive Data 2 3 TXD Transmit Data 3 2 DTR Data Terminal Ready 4 20 GND Signal Ground 5 7 DSR Data...

Page 27: ...Port A to port 1 A1 Port C to port 4 C4 and so on NOTE 1 More than one numbered port can be connected to port A or B For example to connect port A to both port 1 and port 3 and port B to both port 2 and port 4 transmit A13B24 2 0 clears diconnects all numbered ports For example A0 clears all numbered ports connected to port A d Connection or disconnection type ASCII K connects the specified ports ...

Page 28: ...r k cr A1k cr Report Terminator Status s cr s cr abcd13k Lock Front Panel L cr L cr Unlock Front Panel U cr U cr Report Model S N and cr cr text Date of Manufacture Report Alarm Status a cr a cr a00 Report Temperature t cr t cr t 23 5 Celsius Report Performance P cr P cr PAABBCCDD 112233445566 Report SCSI Bus I cr I cr 2C71 hex Inactivity 1137 7 s or 19 m Yank on SCSI Reset Y cr AC3Y cr Ports A C ...

Page 29: ...cr COM2 9600 bps Set Serial Port Mode OC cr OC0 cr Daisychain enabled Set Switch Number OD cr OD06 cr Switch 6 Set Lock Unlock OP cr OP3156 cr Password 3156 Password Set Temperature Limit OT cr OT45 cr Max temp 45 C Report Revision R cr R cr 2024610 Lock Serial Ports OL cr OL3156 cr OL1 pass OL0 fail Unlock Serial Ports OU cr OU3156 cr OU1 pass OU0 fail Report Serial Port OS cr OS cr OS1 lock Lock...

Page 30: ... example report A3B2C0D5K cr c Select SCSI Terminator Matrix example command cr CD1356k cr report none d Report SCSI Terminator Status example command cr s cr example report CD1356k e Lock Front Panel example command cr L cr report none f Unlock Front Panel example command cr U cr report none g Report Model Serial Number and Date of Manufacture example command cr cr example report SW487A R2 202801...

Page 31: ...hexadecimal values that express the length of time in tenths of seconds that the port has been inactive not transmitting or receiving data For example 0A73 0 x 4096 163 10 x 256 162 7 x 16 3 tenths of seconds 267 5 seconds 4 minutes 27 5 seconds l Yank on SCSI Reset line example command cr BD235Y cr report none m Enable Disable Audible Alarm example command cr OAx cr x ASCII 1 or 0 x 0 enable alar...

Page 32: ...rt Revision of SCSI Switch s Firmware example command cr R cr example report 2059722 t Lock Serial Ports example command cr OLxxxx cr xxxx password set with OP command ASCII 4 digit decimal number from 0000 to 9999 example report OL1 pass if password entered correctly OL0 fail otherwise u Unlock Serial Ports example command cr OUxxxx cr xxxx password set with OP command ASCII 4 digit decimal numbe...

Page 33: ... 18 19 20 21 22 23 24 ASCII l m n o p q r s Switch 25 26 27 28 29 30 31 32 ASCII t u v w x y z 5 8 Graphical User Interface GUI Your SCSI Switch is supplied with control software that is compatible with most recent Microsoft Windows operating systems to allow remote control of the switch Follow instructions on the included CD ROM to install the software Figure 5 3 The control software s GUI ...

Page 34: ...rovided Set the unit into position on the rack aligning the mounting bracket holes with the rack holes Use 5 8 10 32 or 12 24 screws to install in the rack 5 10 2 RACKMOUNT CONSIDERATIONS 1 For proper operation make sure that the maximum recommended operating ambient temperature of 149 F 65 C is not exceeded Keep in mind that if the unit is installed in a closed or multi unit rack assembly the ope...

Page 35: ...her equipment in your rack are properly grounded 5 11 Typical Applications Figure 5 5 shows a pair of sample system configurations Many other configurations are possible Figure 5 5 Sample applications Secure admin computer and RS 232 serial control link SCSI links SCSI links SCSI links SCSI links Tape arrays Tape arrays Servers Servers LAN SCSI Switch 10BASE T LAN control link SCSI links SCSI link...

Page 36: ...factory default setting the LAN port will be enabled and the RS 232 COM2 port which shares the same circuitry and is most often used for daisychaining SCSI Switches will be disabled If you want to daisychain SCSI Switches you will need to disable the LAN port and enable the COM2 port To do this scroll through the control menus in the switch s front panel LCD see Section 4 3 until you reach the SET...

Page 37: ...d switch MAC address in the appropriate fields The MAC address can be found on a label located on the bottom of the switch You can search for the IP address by clicking the search button in the Configure Black Box Network Switch This will bring up a Search For Black Box Network Switches window Enter a beginning IP address an ending IP address and click Search Command strings to control the SCSI Sw...

Page 38: ...ff in seconds The SCSI Switch will not change the switch settings on a bus until there has been no activity for the specified number of seconds Valid range is 0 to 25 seconds x Ignore SCSI bus activity Switch settings will be changed immediately t termination Termination can be turned on N or off F for each port A to D or 1 to 6 For example A2NB1F activates termination for ports A and 2 and it dea...

Page 39: ...ude the ability to address up to 32 devices a 16 bit single cable data bus and serial SCSI protocol The SCSI 3 standard has been split into several subdocuments including the SCSI Parallel Interface SPI which is based on a layered protocol and the SCSI Interlocked Protocol SIP a software link protocol 6 1 4 SIGNAL WIRING The signal wiring used in a SCSI bus has an impact on bus performance The two...

Page 40: ...consistent signal to be transmitted everywhere on the bus This in turn compensates for the varying bus lengths and signal loads All lines are terminated through 110 ohm resistors which are applicable to all narrow and wide single ended applications Active termination is the minimum ANSI recommended termination 6 2 SCSI Installation Tips Keep your SCSI chain short Official SCSI specifications limit...

Page 41: ...EL SELECT An OR tied signal used either by an initiator to select a target or by a target to reselect an initiator C D CONTROL DATA A signal driven by a target that indicates whether Control or Data information is on the data bus True indicates Control I O INPUT OUTPUT A signal driven by a target that controls the direction of data movement on the data bus with respect to an initiator True indicat...

Page 42: ... bit SCSI wide Signal Name Pin Number Signal Name Pin Number GROUND 1 DB12 35 GROUND 2 DB13 36 GROUND 3 DB14 37 GROUND 4 DB15 38 GROUND 5 DBP1 39 GROUND 6 DB0 40 GROUND 7 DB1 41 GROUND 8 DB2 42 GROUND 9 DB3 43 GROUND 10 DB4 44 GROUND 11 DB5 45 GROUND 12 DB6 46 GROUND 13 DB7 47 GROUND 14 DBP 48 GROUND 15 GROUND 49 GROUND 16 GROUND 50 TERMPWR 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 RESERVED 19 RESERVED ...

Page 43: ...ector assignments for differential 16 bit SCSI wide Signal Connector Signal Connector Name Pin Number Name Pin Number DB 12 1 DB 12 35 DB 13 2 DB 13 36 DB 14 3 DB 14 37 DB 15 4 DB 15 38 DB P1 5 DB P1 39 GROUND 6 GROUND 40 DB 0 7 DB 0 41 DB 1 8 DB 1 42 DB 2 9 DB 2 43 DB 3 10 DB 3 44 DB 4 11 DB 4 45 DB 5 12 DB 5 46 DB 6 13 DB 6 47 DB 7 14 DB 7 48 DB P 15 DB P 49 DIFFSENS 16 GROUND 50 TERMPWR 17 TERM...

Page 44: ...Q 28 REQ 62 I O 29 I O 63 GROUND 30 GROUND 64 DB 8 31 DB 8 65 DB 9 32 DB 9 66 DB 10 33 DB 10 67 DB 11 34 DB 11 68 Table 6 3 SCSI connector assignments for low voltage differential LVD 16 bit SCSI wide Signal Connector Signal Connector Name Pin Number Name Pin Number DB 12 1 DB 12 35 DB 13 2 DB 13 36 DB 14 3 DB 14 37 DB 15 4 DB 15 38 DB P1 5 DB P1 39 DB 0 6 DB 0 40 DB 1 7 DB 1 41 DB 2 8 DB 2 42 DB ...

Page 45: ...er Name Pin Number DB P 14 DB P 48 GROUND 15 GROUND 49 DIFFSENS 16 GROUND 50 TERMPWR 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 RESERVED 19 RESERVED 53 GROUND 20 GROUND 54 ATN 21 ATN 55 GROUND 22 GROUND 56 BSY 23 BSY 57 ACK 24 ACK 58 RST 25 RST 59 MSG 26 MSG 60 SEL 27 SEL 61 C D 28 C D 62 REQ 29 REQ 63 I O 30 I O 64 DB 8 31 DB 8 65 DB 9 32 DB 9 66 DB 10 33 DB 10 67 DB 11 34 DB 11 68 ...

Page 46: ...Length M Maximum Devices SE HVD LVD 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 5 8 Wide Ultra SCSI 3 4 Ultra2 SCSI N A 25 25 2 Ultra2 SCSI N A 12 12 8 Wide Ultra2 SCSI N A 25 25 2 Wide Ultra2 SCSI N A 12 12 16 ...

Page 47: ...CSI 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 3 ...

Page 48: ...luding the nature 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 and the results of any testing you ve already done 7 2 Shipping and Packaging If you need to transport or ship your 6 x 4 Electronic SCSI Switch Package it carefully We recommend that you use the origin...

Page 49: ...nufacturer or its authorized representatives The manufacturer and its authorized representatives reserve the right to revise this publication from time to time without being obliged to notify any person or organization of such revision We have prepared this manual for use by customers as a guide for the proper installation operation and maintenance of this equipment The illustrations specification...

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