Chenbro SR209 Series 6Gb/s 4-port mini-SAS Backplane(80H10220918A0), for 4-Bay 3.5 Hot-swap HDD Cage - Manual - Manual (Page 11)

11
4-Port SAS / SATA to Mini-SAS 6G Backplane 80H10220918A0
User’s Manual
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11. [CN07] : SGPIO HDD fail function jumper
[CN08] : SGPIO HDD access function jumper
12 [SW1] : Function switch
13. [CN09] : Auto detection
CN07 CN08 SGPIO Pin B8 Signal
Close Close Enable HDD failure and activity signal via SGPIO Low
Close Open Enable HDD failure signal via SGPIO (Default) Low
Open Close Enable HDD activity signal via SGPIO Low
Open Open Disable HDD failure and activity signal via SGPIO High