Black Box IC515C Spezifikationen PDF herunterladen (Seite 14)

CHAPTER 2: Introduction

2.2 The Adapter Illustrated

The Ultra2 LVD SCSI Host Adapter and its major components are shown in

Figure 2-1 below. You might want to refer to this diagram as you install your

Adapter (see Chapter 4). Figure 2-2 below that shows closeups of the Adapter’s two

SCSI connectors. The Adapter’s other components include:

• Jumper JP1: These posts are usually left open so that termination can be

firmware-controlled. Put a jumper on them to hard-wire termination always

ON.

•

SE LED: Lights if any single-ended (legacy) devices are attached to the Adapter.

• LVD LED: Lights if any Ultra2 LVD SCSI devices are attached to the Adapter.

• ACT LED: Dark if the attached SCSI bus is passively terminated (which we

don’t recommend); lights if the bus is actively terminated (including forced-

perfect termination).

Figure 2-1. The Adapter’s circuit board.

Figure 2-2. The Adapter’s SCSI connectors.

SE LVD TERM ACT

VCC

LED

–

VCC

SE LVD TERM ACT

VCC

LED

–

VCC

JP1 TERMINATION

1–2

NO JMP SW CNTRL

Default

Always OFF

J6: Internal 68-Pin

Ultra2 Wide SCSI Connector

JP1:

Termination

Jumper

J1 (Internal)

J2 (External)

J4:

External

68-Pin

Ultra2 Wide

SCSI

Connector

J3:

LED

Conn.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 87 88

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