Seagate CHEETAH ST19101FC - Manual (Page 27)

Cheetah 9FC Installation Guide, Rev. A 25
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
37 SEL_1 TTL input
38 SEL_0 TTL input
39 Reserved NC
40 5 Volts charge
Pin/contact Signal name Signal type