Connecting multiple scsi devices – Nikon LS-10 Installation Guide for Windows User Manual

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The SCSI Interface

Chapter 3

(a) Computer SCSI Controller

Computer Internal

SCSI Termination

Computer

SCSI Connector

Unused center

SCSI Connector

(b) SCSI Cable

(c) Coolscan

SCSI termination

switch is #4 (closest to 50 pin connector)

Figure 3.15 The PC’s internal SCSI Bus. (a) The PC’s SCSI controller card connecror. (b)

Inrernal SCSI cable, (c) Coolscan.

Procedure (use the supplied 3-connector 50-pin flat SCSI cable):

1. Make sure that the PC is powered off.

2. Connect one end of the flat SCSI cable to the PC’s SCSI connector, making sure

that they are properly aligned (see “Installing Coolscan Into the Drive Bay” in

Chapter Four for detailed description).

3. Connect the other end of the flat SCSI cable to the SCSI connector on the back

of Coolscan, making sure that the connectors are properly aligned (see “Installing

Coolscan Into the Drive Bay” in Chapter Four for detailed description).

In this case, both the SCSI host side of the bus and the SCSI target device side of

the bus must be terminated. Refer to the section “Terminating the SCSI Chain - LS-

10” in this chapter for the proper DIP switch setting.

Connecting Multiple SCSI Devices

In many cases, more than one SCSI target device will be connected to the SCSI

bus. When this is true, the chain of SCSI cables must connect or ‘daisy chain’ each

device together, even though the devices will typically only communicate directly with

the PC, not with each other. In this example, shown in Figure 3.16, Coolscan is placed

at the end of the SCSI chain. This daisy chaining configuration, minimizes the number

of cables and connectors required.

Page 34

Nikon

Coolscan Installation Guide for Windows

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