
52 Chapter 3: Replacing Pre-Installed Components
3.7.2 M1220 SAS/SATA Backplane Connector Pin Definitions
J32, J33 2x12pin LED board connector
J7 SILM IDE 40pin Front Panel Connector
1 LAN1 LED + (link/active) 2 LAN1 LED - (link/active)
3 Reserved 4 Reserved
5 LAN2 LED + (link/active) 6 LAN2 LED - (link/active)
7 Reserved 8 Reserved
9 Reserved 10 Reserved
11 ID-LED + 12 ID-LED -
13 W-LED + 14 W-LED -
15 M/B HDD LED + 16 M/B HDD LED -
17 M/B power LED + 18 M/B power LED -
19 M/B reset switch + 20 M/B reset switch -
21 ID-switch + 22 ID-switch -
23 M/B power switch + 24 M/B power switch -
1 RESET 2 GND
3D7 4D8
5D6 6D9
7D5 8D10
9D4 10D11
11 D3 12 D12
13 D2 14 D13
15 D1 16 D14
17 D0 18 D15
19 GND 20 VCC
21 DMARQ 22 VCC
23 DIOW 24 VCC
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