Black Box Ultra 2 Bedienungsanleitung

CUSTOMER

SUPPORT

INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

AUGUST 2000

IC541A

Ultra 2 SCSI LVD/HVD

Multimode Expander

Ultra2 SCSI LVD/HVD

Multimode Expander

FCC/IC STATEMENTS

FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA

RADIO-FREQUENCY INTERFERENCE STATEMENTS

Class B Digital Device. This equipment has been tested and found to comply with

the limits for a Class B computing device pursuant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful

interference in a residential installation. However, there is no guarantee that

interference will not occur in a particular installation. This equipment generates,

uses, and can radiate radio frequency energy, and, if not installed and used in

accordance with the instructions, may cause harmful interference to radio

communications. If this equipment does cause harmful interference to radio or

telephone reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which

the receiver is connected.

• Consult an experienced radio/TV technician for help.

Caution:

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 B limits for radio noise emission from digital

apparatus set out in the Radio Interference Regulation of Industry Canada.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la classe B prescrites dans le Règlement sur le

brouillage radioélectrique publié par Industrie Canada.

ULTRA2 SCSI LVD/HVD MULTIMODE EXPANDER

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.

3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de

operación deben ser respetadas.

4. Todas las instrucciones de operación y uso deben ser seguidas.

5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca

de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc.

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que

sean recomendados por el fabricante.

7. 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 colocación del aparato eléctrico sobre una cama, sofá,

alfombra o superficie similar puede bloquea la ventilación, no se debe colocar

en libreros o gabinetes que impidan el flujo de aire por los orificios de

ventilación.

10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor

como radiadores, registros de calor, estufas u otros aparatos (incluyendo

amplificadores) que producen calor.

11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del

tipo descrito en el instructivo de operación, o como se indique en el aparato.

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.

14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las

recomendaciones del fabricante.

15. En caso de existir, 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 objectos 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 el contacto ha sido dañado; u

B: Objectos han caído o líquido ha sido derramado dentro del aparato; o

C: El aparato ha sido expuesto a la lluvia; o

D: El aparato parece no operar normalmente o muestra un cambio en su

desempeño; o

E: El aparato ha sido tirado o su cubierta ha sido dañada.

ULTRA2 SCSI LVD/HVD MULTIMODE EXPANDER

Contents

Chapter Page

1. Specifications ............................................................................................. 5

2. Introduction ............................................................................................... 6

2.1 Overview .............................................................................................. 6

2.2 Features ............................................................................................... 8

2.3 The Complete Package ....................................................................... 8

3. Configuration and Internal LEDs ............................................................. 9

3.1 Opening the Expander ....................................................................... 9

3.2 Configuring Termination ................................................................. 11

4. Installation ................................................................................................ 14

4.1 Connecting the SCSI-Bus Cables ..................................................... 14

4.2 Connecting AC Power and Observing the External LEDs ............. 15

5. Applications .............................................................................................. 16

5.1 Applications That Will Work ............................................................ 16

5.2 Applications That Won’t Work ........................................................ 18

6. Troubleshooting ...................................................................................... 19

6.1 Calling Black Box .............................................................................. 19

6.2 Shipping and Packaging ................................................................... 19

Appendix A: Port Pinouts ............................................................................... 20

A.1 High-Voltage Differential (HVD) Pinout ........................................ 20

A.2 Low-Voltage Differential (LVD) Pinout ........................................... 20

A.3 Single-Ended (SE) Pinout ................................................................. 22

Appendix B: Block Diagram .......................................................................... 24

CHAPTER 1: Specifications

1. Specifications

Compliance — FCC Part 15 Subpart J Class B, IC Class/classe B

Interfaces — LVD/SE port: Wide (16-bit) Ultra2 SCSI (“Fast 40”),

multimode (can be either LVD or single-ended,

autosensing);

HVD port: Wide (16-bit) Ultra SCSI, high-voltage

differential

Protocol — Transparent to synchronous or asynchronous

communication

Data Rate — LVD: Up to 80 Megabytes per second

Maximum

Distance — Can extend HVD SCSI bus as far as 37 m (121.3 ft.)

User Controls — (4) Internal jumpers for termination

Indicators — (2) Front-mounted LEDs: Power and Busy

Connectors — (2) Micro D68 female (see Appendix A for pinouts)

Power — 110 to 220 VAC, 50 to 60 Hz (autosensing)

Size — 2.9"H x 4.8"W x 7.8"D (7.4 x 12.2 x 19.8 cm)

Weight — 3.3 lb. (1.5 kg)

ULTRA2 SCSI LVD/HVD MULTIMODE EXPANDER

2. Introduction

2.1 Overview

The Ultra2 SCSI LVD/HVD Multimode Expander is a 16-bit Wide SCSI Low

Voltage Differential (LVD) to High Voltage Differential (HVD) converter. The

Expander effectively divides the SCSI bus into one LVD or SE (single-ended)

segment (connected to its “LVD/SE” port) and an HVD segment (connected to its

“HVD” port). The Expander translates signals, and facilitates communication,

between the segments.

When used in conjunction with an Ultra2 SCSI host adapter, the Expander

maintains backward compatibility with previous generations of devices on HVD

segments, while retaining the optimal performance and maximum cable length of

LVD. The Expander can also be used with an Ultra SCSI (“SCSI-3,” 40-MB-per-

second) HVD host adapter to add Ultra2 devices to its bus. Because it performs

only signal-level translation, the Expander operates transparently; users will hardly

know it’s there. It places no limits on the quantity or location of SCSI devices

beyond the normal limits of the SCSI specification.

The Expander’s LVD/SE port is “multimode,” meaning it can operate in either

single-ended or LVD mode. (This selection is controlled automatically by a sensing

signal [DIFFSENSE] provided by the SCSI devices on the bus. As soon as you

connect it to the bus, the Expander will autoconfigure its ports as necessary.)

CHAPTER 2: Introduction

The Expander supports all current SCSI operations and can handle data rates up

to 20, 40, or 80 megabytes per second, depending on the type of bus it’s

communicating with. Figure 2-1 shows a typical Expander application. If you’d like

to examine a block diagram of the Expander, refer to Appendix B.

Figure 2-1. One SCSI bus with two physical segments: Using an Expander to

access legacy HVD devices with an LVD host adapter.

HVD Segment

HVD Devices LVD Devices Ultra2 SCSI LVD

Host Adapter

Ultra2 SCSI

LVD/HVD

Multimode

Expander

LVD Segment

ULTRA2 SCSI LVD/HVD MULTIMODE EXPANDER

2.2 Features

• Supports legacy and Ultra2 SCSI devices on the same bus with LVD-to-HVD or

SE-to-HVD conversion:

– Fully backward-compatible with SCSI-1, SCSI-2 [Fast SCSI], and SCSI-3

[Ultra SCSI], and can be used with either Narrow or Wide buses.

– Has switchable internal termination.

• Transfers data at up to 80 Megabytes per second (on a 16-bit Wide bus) in

either direction.

• Supports as many as 16 SCSI devices.

• Does not require software or a SCSI ID.

• Has RS-485 HVD transceivers.

• Can be used to extend your HVD bus as far as 37 m (121.3 ft.).

• Transparent operation—requires no software and no SCSI ID.

• Supports arbitration, parity, disconnect/reconnect, and sync or async data

transfer.

• Can act as either a target or initiator on either connected SCSI-bus segment.

• LEDs show power status and bus activity at all times.

• Can optionally provide TERMPWR (terminator power) to either or both

attached bus segments. Handles TERMPWR with a resetting circuit protector

and backflow-preventing diodes.

2.3 The Complete Package

Besides the Ultra2 SCSI LVD/HVD Multimode Expander itself, you should have

received its power cord and this manual. If anything is missing or arrived damaged,

call Black Box right away.

CHAPTER 3: Configuration and Internal LEDs

3. Configuration and Internal LEDs

3.1 Opening the Expander

To configure the Ultra2 SCSI LVD/HVD Multimode Expander’s termination,

you’ll need to access the Expander’s internal jumpers.

CAUTION!

To avoid receiving a potentially hazardous electric shock, make sure the

Expander is turned OFF and unplugged both when you open it and for

the entire period of time it stays open.

Conversely, even while the Expander is OFF, you need to avoid

damaging its circuit board with static electricity. If possible, stand on an

anti-static mat when you open the Extender and wear anti-static gloves

or wrist straps. At the very least, ground yourself before you open the

Expander by touching something metal.

Take these steps to open the Expander:

1. Use a small Phillips-head screwdriver to unscrew the screws embedded in each

of the Expander’s four rubber feet. Remove the feet.

2. You’ll see the edges of the Expander‘s wraparound housing on the bottom of

the unit right next to the holes where the feet used to be. If necessary, gently

pry one of these edges slightly outward so that the housing doesn’t fit so

snugly.

3. Carefully slide the housing toward the back of the unit and remove it.

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