User manual
HARDWARE INSTALLATION
30
The intelligent LED controller outputs a low-level pulse to deter-
mine if status LEDs are attached to pin sets 1 and 2. This allows
automatic controller conguration of the LED output. If the logi-
cal level is different between the st 2 sets of the HDD LED header
(LED attached to Set 1 but not Set 2), the controller will assign the
rst HDD LED header as the global indicator connector. Otherwise,
each LED output will show only individual drive status.
The SATA RAID controller provides four kinds of LED status connec-
tors.
A: Global indicator connector, which light up when any drive is ac-
tive.
B: Individual LED indicator connector, for each drive channel.
C: I
2
C connector, for SATA proprietary backplane enclosure.
D: SGPIO connector for SAS backplane enclosure
If you have not connected your Min SAS 4x cables yet, use the
cables included with your enclosure to connect your controller to
the Min SAS 4x connector. This type of cable will depend on what
enclosure you have. The above diagram shows one example picture
of Min SAS 4x cable.
Step 6. Install the LED Cable (optional)
ARC-1XXX Series Fault/Activity Header Intelligent Electronics
Schematic.