EasyRAID S16-F2R4 Hardware User Manual - page 17
easyRAID S16 Serial ATA Disk Array Systems
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Small Computer Systems Interface
The ERX16S-U4R4 has dual Ultra320 SCSI interfaces that are compatible with previous SCSI
standards. Refer to the following table to understand SCSI bus requirements.
Fibre Channel Interface
The ERX16S-F2R4 has dual 2 Gbit fibre channel interfaces with SFP connectors for linkage to a
fibre channel switch or host computer interface card. With the correct SFP transceiver and opti-
cal cable, the following transmission distances can be achieved.
Hard Disks
Supply the number of serial ATA disks needed for your application. Refer to “Understanding
RAID” on page 3 to determine the number of disks needed.
Note
Subtract the internal cable length (60 cm) from the maximum SCSI bus
length to calculate the maximum external SCSI cable length.
SCSI
Standard
Maximum
SCSI Bus Length
in Meters
Data Rate
in Megabytes
per Second
Maximum
Number of Devices
Ultra320
12
320
15
Ultra160
12
160
15
Ultra2
12
80
15
Ultra Wide
1.5
40
7
Fast Wide
3
20
15
Ultra
1.5
20
7
Component
Optical
SFP Transceiver
LC Optical
Cable
Short Wave
Long Wave
Maximum Cable Length
50m
10 Km