Chenbro RM31616 3Gb/s 16-port 3.5 mini-SAS Backplane(80H103316-001), Rev. A2/B0 - Manual - Manual (Page 7)

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16-Port Mini-SAS Backplane 80H103316-001 ver. A2 & B0
User’s Manual
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[JP1] : HDD Sequential Spin-up Enable / Disable
Spin-up Enable: Jumper set on pins 2 & 3 (Default factory setting, controlled by RAID / HBA)
Spin-up Disable: Jumper set on pins 1 & 2 (Controlled by HDD)
[SW1] : Function Switch
ON OFF
SW-2
HDD Failure Signal via
Mini-SAS Port Enable HDD Failure Signal via
Mini-SAS Port Disable
SW-1
HDD Access Signal via
Mini-SAS Port Enable HDD Access Signal via
Mini-SAS Port Disable
SW-1 HDD Access Signal:
When switch to OFF, HDD access LED will work if SATA-II HDD applied.
For other HDD such as SAS / SATA-I, connect ACT_CN 1~16 to RAID / HBA to
active HDD access LED on backplane.
SW-2 HDD Failure Signal:
When switch to OFF, connect CN1~16 to RAID / HBA to active HDD failure LED
on backplane.
[CN15] : Mini-SAS Connector 1 (HDD1~4) -- Connecting SAS / SATA-II Host
[CN18] : Mini-SAS Connector 2 (HDD5~8) -- Connecting SAS / SATA-II Host
[CN25] : Mini-SAS Connector 3 (HDD9~12) -- Connecting SAS / SATA-II Host
[CN28] : Mini-SAS Connector 4 (HDD13~16) -- Connecting SAS / SATA-II Host
Mini-SAS Pin Definition: SFF-8087 Mini-SAS 36-pin cable plug and receptacle connectors
Default Setting
A1
B1
A18
B18
A18
B18