Areca ARC-1880 Series, Руководство пользователя

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HARDWARE INSTALLATION
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Figure 2-12, Min SAS 4x to Min SAS 4x cable
2.4.4 External Min SAS 4i Drive Boxes and Drive
Expanders
The Min SAS 4x external cables are used for connection between
the 6Gb/s SAS controller external connectors and connectors on
the external drive boxes or drive expanders (JBOD). The 6Gb/s
SAS controller has Min SAS 4x (SFF-8088) external connector,
each of them can support up to four SAS/SATA signals.
2.5 LED Cables
There is no SGPIO supported in the most of old version SATA back-
plane. The 6Gb/s SAS controller also provides two kinds of alterna-
tive LED cable header to support the fault/activity status for those
backplanes. The global indicator connector is used by the server
global indicator LED.
The following electronics schematic is the 6Gb/s SAS RAID control-
ler logical of fault/activity header. The signal for each pin is cathode
(-) side.
The following diagrams and descriptions describe each type of con-
nector.