Dell Embedded Box PC 3000 Installation And Operation Manual page 35

The following figure shows the Multi-function port pin number mapping on the Multi-function port cable.
The following table shows the Multi-function port pin definition details.
Pin Signal
1 LINE1_JD
2 MIC1_JD
3 MIC_RIN
4 GND
5 MIC_LIN
6 TCA9555 P05
7 TCA9555 P02
8 TCA9555 P15
9 TCA9555 P12
10 MSCK
11 GND
12 MSDA
13 KBDA
14 VCC_PS2
15 KBCK
NOTE: DNC indicates Do Not Connect.
Pin Signal
16 FRONT_JD
17 LINEOUT_R
18 GND
19 LINEOUT_L
20 GND
21 TCA9555 P04
22 TCA9555 P01
23 TCA9555 P14
24 TCA9555 P11
25 DNC
26 GND
27 NCTSB#
28 NDSRB#
29 NDTRB#_422RXN
30 NRXDB_422TXP
Pin Signal
31 LINE1_RIN
32 GND
33 LINE1_LIN
34 +5V
35 TCA9555 P03
36 TCA9555 P00
37 TCA9555 P13
38 TCA9555 P10
39 DNC
40 NRIB#
41 NRTSB#
42 COM2_GND
43 NTXDB_422RXP
44 NDCDB#_422TXN
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