Product manual

Installation 25
4. Connectors and cables
Viper 200 drives (STU42001FC) have Fibre Channel LC Optical interfaces. They
can be connected to either a hub or a switch. Each drive contains two FC ports,
which operate independently. In systems supporting failover, this permits hosts to
maintain a connection with the drive if one connection fails.
Connecting the Fibre Channel interface cable
Viper 200 FC drives are 100-M5-SN-I compliant and use LC style connectors. Either
50 or 62.5µm multimode optical fiber cables may be used. Attach the interface cable
to either of the two LC optical interface connectors on the back of the drive (labeled
A and B in Figure 10).
In systems that support “failover,” both ports can be connected through separate
loops or fabrics to the same set of host computers. This way, if one connection fails,
the other can be used to continue the data transfer.
F
ibre channel
o
ptical connector
Figure 10. Rear view of the Viper 200 FC internal drive showing fibre channel optical
connectors
Connecting a Serial Interface Cable (for tape libraries)
The Viper 200 drive includes an RS-422 serial interface for tape libraries. The RS-
422 serial interface connector is on the top of the extension on the back of the drive,
as shown in Figure 11.