Black Box IC540A Bedienungsanleitung

CUSTOMER

SUPPORT

INFORMATION

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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

IC540A

Ultra 2 SCSI LVD Expander

Ultra2 SCSI LVD

Multimode Extender

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 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 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

3.3 Observing the Internal LEDs ........................................................... 14

4. Installation ................................................................................................ 15

4.1 Connecting the SCSI-Bus Cables ..................................................... 15

4.2 Connecting AC Power and Observing the External LEDs ............. 16

5. Applications .............................................................................................. 17

5.1 Applications That Will Work ............................................................ 17

5.2 Applications That Won’t Work ........................................................ 19

6. Troubleshooting ...................................................................................... 20

6.1 Calling Black Box .............................................................................. 20

6.2 Shipping and Packaging ................................................................... 20

Appendix A: Port Pinouts ............................................................................... 21

A.1 Low-Voltage Differential (LVD) Pinout ........................................... 21

A.2 Single-Ended (SE) Pinout ................................................................. 23

Appendix B: Block Diagram .......................................................................... 25

CHAPTER 1: Specifications

1. Specifications

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

Interface — Wide (16-bit) Ultra2 SCSI (“Fast 40”), multimode (can

be either LVD or single-ended, autosensing)

Protocol — Transparent to synchronous or asynchronous

communication

Data Rate — Up to 80 Megabytes per second

Maximum

Distance — Extends LVD SCSI bus as far as 25 m (82 ft.) with a single

unit, farther with daisychained units

User Controls — (4) Internal jumpers for termination; additional internal

jumpers are reserved

Indicators — LEDs:

(2) Front-mounted: Power and Busy;

(5) Internal: (4) Bus Type, (1) Busy;

An additional internal LED is reserved

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 EXPANDER

2. Introduction

2.1 Overview

The Ultra2 SCSI LVD Expander is a Low Voltage Differential (LVD) 16-bit Wide

SCSI-bus extender. The Expander effectively divides the SCSI bus into two LVD or

SE (single-ended) segments—one segment connected to each of its two ports. 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 single-

ended segments, while retaining optimal performance and maximum cable length

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

second) host adapter to add Ultra2 devices to its bus and increase cable lengths.

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 ports are “multimode,” meaning they can operate in 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.) Because of this,

you can use the Expander to effectively double the length of a single-ended SCSI

bus, or to access LVD peripherals farther away from your host adapter than the

normal maximum of 12 m (40 ft.). You can also connect two Expanders point-to-

point across as much as 24 m (80 ft.) of cable, as long as there aren’t any other

SCSI devices in-line between them.

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 single-ended devices with an LVD host adapter.

Single-Ended Segment

Single-Ended Devices LVD Devices Ultra2 SCSI LVD

Host Adapter

Ultra2 SCSI

LVD Expander

LVD Segment

ULTRA2 SCSI LVD EXPANDER

2.2 Features

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

extension or SE-to-LVD 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.

• Can be used to extend your LVD bus as far as 25 m (82 ft.), or to create an

LVD link that extends your single-ended bus.

• Can be daisychained to achieve even higher distances.

• 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, regardless of whether they’re LVD or SE. Handles

TERMPWR with a resetting circuit protector and backflow-preventing diodes.

2.3 The Complete Package

Besides the Ultra2 SCSI LVD 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 Expander’s termination, or to get visual

confirmation of more information than the external LED can provide, you’ll need

to access the Expander’s internal jumpers and LEDs.

CAUTION!

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

Expander is turned OFF and unplugged when you open it. You might

have to temporarily turn the unit ON after it has been opened in order to

observe its internal LEDs—be very careful if you do this!—but never

open the unit while the unit is ON.

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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