ATTO Technology 2390C/R/D Guía Del Usuario

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ATTO Technology Inc. FibreBridge Installation and Operation Manual
Appendix A   Cabling
ATTO FibreBridge SCSI ports connect SCSI storage devices into the Fibre Channel Storage Area 
Network (SAN). Use an Ethernet connection to use the ATTO ExpressNAV interface.
Make sure all cables are anchored securely at both 
ends with the proper connectors. 
SCSI port connections
The FibreBridge supports a wide variety of SCSI 
storage devices including stand-alone drives, 
removable drives, JBODs, tape, CD and DVD 
drives, changers, libraries and magneto optical 
drives.
Each SCSI port is totally independent from the 
other SCSI port. Each bus may support up to 15 
devices and each SCSI bus auto-negotiates the 
appropriate sync rates with the connected devices. 
If slower devices are mixed with faster devices, 
the bus communicates at the rate of the slowest 
device. 
Connect slower devices to one SCSI port and 
faster devices to the other port. 
Connect a SCSI connector from the SCSI device 
to a SCSI port on the FibreBridge.
Check the type of cable, cable length limit and 
number of devices recommended for each port.
Keep cable lengths as short as possible to ensure 
the highest signal quality and performance. These 
cable lengths include the wiring inside the 
devices. 
Fibre Channel connections
Fibre Channel technology offers a variety of 
cabling options. The type of cable required varies 
depending upon the application, environment and 
distance. 
Serial port connections
The ATTO FibreBridge supports remote service 
operations over the RS-232 serial port using 
standard terminal emulation software available 
with most systems. 
Connect a DB-9 crossover serial cable (null 
modem) between the ATTO FibreBridge serial 
port and one of the computer's serial COM ports. 
A gender changer or DB-9 to DB-25 converter 
may be needed depending on the cables being 
used.
Ethernet connections
The 10/100 BaseT Ethernet port provides remote 
monitoring and management using the ATTO 
ExpressNAV interface.
When you connect an Ethernet cable between the 
FibreBridge and a 10/100Base-T connection, you 
may need a crossover cable connecting directly to 
a computer. The ATTO FibreBridge auto detects 
the Ethernet speed by default. 
Device type
Cable 
limit
Ultra SCSI Single Ended (SE)
1.5 meters
Ultra2 SCSI Low Voltage Differential 
(LVD)
12 meters
Ultra160 SCSI Low Voltage Differential 
(LVD)
12 meters
Ultra320 SCSI Low Voltage Differential 
(LVD)
12 meters
Cable length
Cable type
Cable 
size
FC 
connector
Up to 175 
meters
multi mode fiber 
optic
62.5 
micron
LC 
Up to 500 
meters
multimode fiber 
optic
50 
micron
LC 
Up to 13 
meters
unequalized 
copper
HSSDC-2