External Min Sas 4I Drive Boxes And Drive Expanders; Led Cables - Areca ARC-1880 Series User Manual

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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.
Figure 2-12, Min SAS 4x to Min SAS 4x cable

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.
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