Seagate BARRACUDA 18FC Guía de instalación descargar pdf (Pagina 28)

26 Cheetah 18FC Installation Guide, Rev. A

*Short pins in mating backpanel connector.

[1] This pin may be connected to external logic to detect the presence of the drive.

The drive connects this pin to the common ground.

26 Ground

27* +Port B_in Diff. PECL input pair

28* –Port B_in

29 Ground

30* +Port A_out Diff. PECL output pair

31* –Port A_out

32 Ground

33* +Port B_out Diff. PECL output pair

34* –Port B_out

35 Ground

36 SEL_2 TTL input/output

37 SEL_1 TTL input/output

38 SEL_0 TTL input/output

39 Reserved NC

40 5 Volts charge

Pin/contact Signal name Signal type

1 2 ... 23 24 25 26 27 28 29 30 31 32

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Seagate BARRACUDA 18FC Guía de instalación Pagina 28