Multiple SCSI devices in chain

[I]

[a]

[b)

Often more than one SCSI target device will be hooked

 

up to the SCSI bus. When this is true , the chain of

 

 

 

 

 

 

cables must connect each device together, even though

 

 

 

the devices will typically only communicate with the

 

 

 

computer. This chaining, as shown in Figure 2.7,

 

 

 

minimizes the number of cables and connectors .

 

 

 

[a] Computer-SCSI master (internally terminated)

 

 

 

[b]

SCSI cable

 

 

 

[c] Optional peripheral-SCSI target

 

 

 

[d] Scanner-SCSI target

 

 

 

[e]

SCSI terminator

 

 

 

[f]

SCSI cable

In the case shown in Figure 2.7, the LS-10E scanner is installed at the end of the SCSI chain, opposite of the computer. Since the LS-10E is at the end of the chain it has to be terminated . Since the computer is at the other end of the chain, it also has to be terminated . No other SCSI devices on the chain can be terminated in this configuration .

It is equally possible to configure the SCSI chain with the LS-10E in the center of the chain . In this case, the SCSI terminator would reside on the optional peripheral, as opposed to the LS-10E.

[e)

Fig. 2.7 Multiple SCSI devices on the SCSI bus

The LS-10E is shown at the end of the chain.

Dispositifs multiples sur un bus SCSI

Le scanner LS-10E est positionne en fin de chaine.

Mehrere SCSI-Gerate auf dem SCSI-Bus

Der Scanner LS-10E befindet sich hier am Ende der Kette.

2-6 SeHing Up a SCSI Chain with the LS-10E

The LS-10E scanner can easily sit in the center or at the end of a SCSI chain . The two 50-pin connectors at the rear of the LS-10E are both used for this purpose. Something must always be plugged into each of these two connectors. For the LS-10E plugged into the center of the SCSI chain , two SCSI cables must be plugged into them , one going to each neighboring SCSI device. In the case that the LS-10E is at the end of the SCSI chain , then one connector will have a SCSI cable in it. This cable will connect the LS-10E to the SCSI bus. The other connector will have a SCSI terminator plugged into it since it is at the end of the SCSI chain .

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Nikon instruction manual SeHing Up a Scsi Chain with the LS-10E, Multiple Scsi devices in chain