Seagate ST373554FC ユーザーズマニュアル

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Cheetah 15K.4 FC Product Manual, Rev. B

A connector, J6, is provided on the printed circuit board assembly (PCBA) to provide port bypass, drive active, 
and drive fault LED connections (see Figure 15). See Sections 9.5.7, 9.5.8, and 9.5.9 for descriptions of LED 
functions.    

     

[1] The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an external high-effi-

ciency LED (i.e., 2ma) to this pin. Connect the plus side of the LED to +5V.

[2] An external current-limiting resistor is required when connecting an LED to this pin. The minus side of the 

resistor/LED combination is connected to this pin. Connect the plus side to +5V. 

[3] Jumper storage location (across pins 2 and 4).

J6

Port A Bypass LED [1]

Pin 1

Reserved

Port B Bypass LED [1]

Fault LED [1]

Reserved

Active LED [2]

Reserved

+5V

Active LED [1]

Ground [3]