Black Box SC120A-R2 User Manual

2 x 2 SCSI Matrix Switch AUGUST 2002SC120A-R2SC121ACUSTOMERSUPPORTINFORMATIONOrder toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746

9CHAPTER 1: SpecificationsPhysicalTemperature: 32 F to 149°F (0 to 65°C)Humidity: Up to 90% relative humidity, noncondensingPower: 95 to 260 VAC ± 10%

102 X 2 SCSI MATRIX SWITCH2. Introduction2.1 About the SCSI SwitchThe 2 x 2 SCSI Matrix Switch is a high-performance electronic crosspoint switchfor u

11CHAPTER 2: Introduction2.2.1 LCD PANELThe 2 x 2 SCSI Matrix Switch features an easy-to-use, menu-driven LCD panel withsoft-touch MENU, ENTER, and di

122 X 2 SCSI MATRIX SWITCH2.3.2 GENERALHARDWAREDESCRIPTIONThe 2 x 2 SCSI Matrix Switch’s rear panel identifies each of the independent SCSIports. SCSI

13CHAPTER 2: IntroductionFigure 2-1. SC121A block diagram.Figure 2-2. SC120A-R2 block diagram.SCSI Switch Ports

142 X 2 SCSI MATRIX SWITCHFigure 2-3. Typical switch installation.SCSI Switch (SC120A-R2)

15CHAPTER 3: Installation3. Installation3.1 What’s Included• (1) 2 x 2 SCSI Matrix Switch• (1) AC power cord• (1) 10-ft. (3-m) DB9-male-to-DB9-female

162 X 2 SCSI MATRIX SWITCH3.5 SCSI Interface CablingBoth versions of the 2 x 2 SCSI Matrix Switch have 68-pin high-density connectors.Single-ended dev

17CHAPTER 4: Operator Controls and Indicators4. Operator Controls andIndicators4.1 AC Power SwitchThe AC power switch is located on the SCSI Switch’s

182 X 2 SCSI MATRIX SWITCH4.2.2 KEYPADUse the keypad to select menu and setup parameters for the SCSI Switch.• MENU: Returns to the SCSI Switch setup

1FCC/IC RFI STATEMENTS, EU DECLARATION OF CONFORMITYFEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADARADIO-FREQUENCY INTERFERENCE STATEMENTSThis e

19CHAPTER 4: Operator Controls and IndicatorsDISPLAY PORTSSET SERIAL PORTSSET SWITCH NUMBERDISPLAY POWER, TEMPERATUREDISPLAY POWER, TEMPPWR SUPPLY GOO

202 X 2 SCSI MATRIX SWITCHSET TEMP LIMITDISPLAY BUS ACTIVITYFRONT PANEL LOCKDISPLAY VERSIONIn the DISPLAY VERSION panel:• “HVD,” “LVD,” or “SE” at bot

21CHAPTER 4: Operator Controls and Indicators4.4 SCSI Switch Port ConfigurationThe SCSI Switch has an internal memory device that retains the currentc

222 X 2 SCSI MATRIX SWITCH5. Configuration and Operation5.1 SCSI Cable Interface RequirementsThe 2 x 2 SCSI Matrix Switch can be installed at any poin

23CHAPTER 5: Configuration and OperationSC120A-R2 TERMINATIONCONFIGURATIONInternal termination on Logic Component is always on by default and is notse

242 X 2 SCSI MATRIX SWITCHFigure 5-2. SC120A-R2 termination example 1.Figure 5-3. SC120A-R2 termination example 2.

25CHAPTER 5: Configuration and Operation5.3 Selecting Internal Terminator PowerOn-board SCSI Switch terminators can be powered by internal 5-volt powe

262 X 2 SCSI MATRIX SWITCHTable 5-2. Jumper settings for external termination.SC120A-R2 SC121AE6-Port A E22-Port 1 E19-Port A E17-Port 1E5-Port B E21-

27CHAPTER 5: Configuration and Operation5.6 LAN/Serial-Port CommandsYou can use simple ASCII-character commands to control the SCSI Switch througheith

282 X 2 SCSI MATRIX SWITCHTable 5-4. SCSI Switch commands.Command Cmd. Example Example Result orChar. Command String ResponseSelect Port K <cr>/

22 X 2 SCSI MATRIX SWITCHNORMAS OFICIALES MEXICANAS (NOM)ELECTRICAL SAFETY STATEMENTINSTRUCCIONES DE SEGURIDAD1. Todas las instrucciones de seguridad

29CHAPTER 5: Configuration and OperationTable 5-4 (continued). SCSI Switch commands.Command Cmd. Example Example Result orChars. Command String Respon

302 X 2 SCSI MATRIX SWITCHEXPANDEDLIST OFCOMMANDSa. Select SCSI Port Matrix:example command: <cr>//|A1B2K<cr>report: noneNOTEK - Connects

31CHAPTER 5: Configuration and Operationi. Report Temperature:example command: <cr>//|t<cr>example report: //|t+19.5+19.5 = +19.5˚C, +67˚F

322 X 2 SCSI MATRIX SWITCHp. Set Switch (Device) Number:example command: <cr>//|ODxx<cr>xx = ASCII representation of decimal value from 01

33CHAPTER 5: Configuration and Operation5.7 ASCII Character Reference for SCSI Switch Box SelectionSwitch # 12345678ASCII | } ~ <DEL> ` a b cSwi

342 X 2 SCSI MATRIX SWITCH5.9 Connecting Multiple SCSI SwitchesUp to 32 SCSI Switches can be controlled by a single RS-232 serial interface. Tooperate

35CHAPTER 5: Configuration and Operation5.11 Network Control of SCSI SwitchThe 2 x 2 SCSI Matrix Switch may be controlled over a TCP/IP network throug

362 X 2 SCSI MATRIX SWITCH5.11.2 APCONCFGUTILITYThe apconcfg.exe utility is used to configure the TCP/IP address. This utility isprovided on the inclu

37CHAPTER 5: Configuration and Operation5.11.3 APCONCMDUTILITYThe apconcmd.exe utility enables the user to set switch parameters through theLAN port.

382 X 2 SCSI MATRIX SWITCH6. SCSI Technical Information6.1 SCSI Basics6.1.1 SCSI-1The original specification supports data transfers up to 5 MBps on a

3NOM STATEMENT12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarizacióndel equipo no sea eliminada.13. Los cables de la fuen

39CHAPTER 6: SCSI Technical Information6.1.5 COMMONPROBLEMSThe majority of problems encountered with SCSI-bus installations are due tounbalanced or im

402 X 2 SCSI MATRIX SWITCH• If the last device on the chain has two SCSI connectors, attach the cable to one and aterminator to the other. Otherwise,

41CHAPTER 6: SCSI Technical Information• DB0 through DB15, P, P1 (DATA BUS): Sixteen data-bit signals and two parity-bit signals that together form a

422 X 2 SCSI MATRIX SWITCHTable 6-1 (continued). SCSI connector assignments for single-ended (SE) 16-bit SCSI (wide).Signal Name Pin Number Signal Nam

43CHAPTER 6: SCSI Technical InformationTable 6-1 (continued). SCSI connector assignments for single-ended (SE) 16-bit SCSI (wide).Signal Name Pin Numb

442 X 2 SCSI MATRIX SWITCHTable 6-2 (continued). SCSI connector assignments for differential 16-bit SCSI (wide).Signal Name Pin Number Signal Name Pin

45CHAPTER 6: SCSI Technical InformationTable 6-2 (continued). SCSI connector assignments for differential 16-bit SCSI (wide).Signal Name Pin Number Si

462 X 2 SCSI MATRIX SWITCHTable 6-3 (continued). SCSI connector assignments for low-voltage differential (LVD) 16-bit SCSI (wide).Signal Name Pin Numb

47CHAPTER 6: SCSI Technical InformationTable 6-3 (continued). SCSI connector assignments for low-voltage differential (LVD) 16-bit SCSI (wide).Signal

482 X 2 SCSI MATRIX SWITCHTable 6-4. SCSI distance/device support.STA Term Maximum Bus Length (M) Maximum DevicesSE HVD LVDSCSI-1 6 25 — 8Fast SCSI 6

42 X 2 SCSI MATRIX SWITCHTRADEMARKS USED IN THIS MANUALBLACK BOX and the logo are registered trademarks of Black BoxCorporation.Microsoft, Windows, a

49CHAPTER 6: SCSI Technical InformationTo access jumper options:Remove the four screws on the bottom of the unit. Then lift off the cover.Figure 6-1.

502 X 2 SCSI MATRIX SWITCH7. Troubleshooting7.1 Calling Black BoxIf you determine that your 2 x 2 SCSI Matrix Switch is malfunctioning, do notattempt

51LEGAL INFORMATIONDISCLAIMERS AND NOTICESThe manufacturer specifically disclaims the implied warranties for this product ofmerchantability and fitnes

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746© Copyright 2002. Black Box Corporation. All right

5TABLE OF CONTENTSContentsChapter Page1. Specifications ...

62 X 2 SCSI MATRIX SWITCHChapter Page5. Configuration and Operation (continued)5.8 Graphical User Interface (GUI) ...

7CHAPTER 1: Specifications1. SpecificationsSCSI InterfaceMaximum Port Switching Delay: 3 nsMaximum Signal Skew: 2 nsInternal Terminator Power: 1 ampRe

82 X 2 SCSI MATRIX SWITCHLow-Voltage Differential (LVD) SCSI (SC120A-R2 Only)Maximum Data Rate (8-bit Narrow): 40 MBps for Ultra2 SCSI (narrow transfe