Chenbro RM418 Series 6Gb/s 24-port 3.5 Expander Backplane(80H10341801A0), For 24-bay 3.5 Hot-swap HDD Cage - Manual - Manual (Page 12)

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3.5” 24-Port 6Gb/s SAS Expander Backplane 80H10341801A0
User’s Manual
Pin
NO.
Descriptions
Pin
NO.
Descriptions
A1 GND B1 GND
A2 RP1 B2 TP1
A3 RN1 B3 TN1
A4 GND B4 GND
A5 RP2 B5 TP2
A6 RN2 B6 TN2
A7 GND B7 GND
A8 NC B8 NC
A9 NC B9 NC
A10 NC B10 NC
A11 NC B11 NC
A12 GND B12 GND
A13 RP3 B13 TP3
A14 RN3 B14 TN3
A15 GND B15 GND
A16 RP4 B16 TP4
A17 RN4 B17 TN4
A18 GND B18 GND
SW1 Function Definition
SW1-1: FAN Quantity Setting
Sw1-1 FAN
ON 6
OFF 4
SW1-2: PWM Enable/Disable Setting
Sw1-2 PWM
ON Enable
OFF Disable