Areca ARC-1130, ARC-1110, ARC-1231ML/1261ML/1280ML, ARC-1120 manual Hardware Installation

HARDWARE INSTALLATION

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 configuration of the LED output. If the logi- cal level is different between the fist 2 sets of the HDD LED header (LED attached to Set 1 but not Set 2), the controller will assign the first 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 lights when any drive is active.

B:Individual LED indicator connector, for each drive channel.

C:I2C connector, for SATA proprietary backplane enclosure.

D:SGPIO connector for SAS Backplane enclosure

The following diagrams and description describes each type of con- nector.

Note:

A cable for the global indicator comes with your computer system. Cables for the individual drive LEDs may come with a drive cage, or you may need to purchase them.

A: Global Indicator Connector

If the system will use only a single global indicator, attach the global indicator cable to the two pins HDD LED connector. The fol- lowing diagrams show the connector and pin locations.

Figure 2-18, ARC- 1110/1120/1210/1220 global LED connection for Computer Case.

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