Multiple scsi devices in chain, 6 setting up a scsi chain with the ls-10e, Setting up a scsi chain with the ls-10e – Nikon 35MM Film Scanner LS-10E User Manual
Page 26
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
Multiple SCSI devices in chain
( - . )
—
—
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 positionné en fin de
chaîne.
Mehrere SCSI-Geräte auf dem SCSI-Bus
Der Scanner LS-10E befindet sich hier am Ende
der Kette.
Often more than one SCSI target device wiil be hooked
up to the SCSI bus. When this is true, the chain of
cabies 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.
2-6 Setting 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.
26