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Hewlett Packard
4. System Maintenance
4.1.
System Standards
4.1.1.
SCSI Cabling
•
Only the SCSI-FC Router attaches to a differential interface and a differential
terminator.
•
SCSI cable length for the SCSI-FC Router should not exceed 25 meters (82 feet).
•
SCSI-FC Router supports attachment to an external 68 pin SCSI-II shielded cable.
4.1.2.
SCSI Termination
SCSI termination must exist at both ends of the SCSI bus (see Figure 4-1). To terminate the
SCSI-FC Router's SCSI bus add the External SCSI-FC Router SCSI terminator. To terminate
the attached SCSI device(s), refer to the SCSI device's (tape or disk drive) operating manual
for information concerning proper termination.
External SCSI Terminator
4.1.3.
Copper and Fiber Optic Cabling
Termination is automatically provided with the Fibre Channel architecture, therefore
termination is not needed.
4.1.3.1.
Short Wavelength
•
•
•
4.1.3.2.
Long Wavelength
•
•
•
4.1.3.3.
Copper
•
•
•
Revision 1.0.2
SLIC Router
Figure 4-1. Example of a SCSI-FC Router Termination
Cable:
50 or 62.5 micron fibre optic
Distance:
500 m (1640 ft) or 172m (564 ft)
Connector:
Dual SC
Cable:
9 micron fibre optic
Distance:
10 km (6.2 miles)
Connector:
Dual SC
Cable:
Twinax
Connector:
Two DB-9 or HSSDC
Distance:
30m (98 ft) equalized: 20 m (65.6 ft) non-equalized
SCSI-Fibre Channel Router Installation and User Guide
The SCSI controller
must be terminated
Page 10
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