KBox E-420-R1K/V1K - User Guide, Rev. 1.1
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11.9.
Digital I/O Port
Table 15: Digital I/O Port (see Figure 1, pos. 7)
Pin
Signal Name
DIO Port (9-pin D-SUB Female Connector)
1
DIO_0
2
DIO_1
3
DIO_2
4
DIO_3
5
DIO_4
6
DIO_5
7
DIO_6
8
DIO_7
9
+5V
11.10.
Line-Out / Mic-In Combo Jack
Table 16: Line-Out / Mic-In Combo Jack (see Figure 1, pos. 4)
Pin
Signal Name
Audio Connector & Corresponding Audio Jack Plug
TRS Type Headphone Jack Plug (support audio / headphone output only)
Tip
Line-Out_L
Ring
Line-Out_R
Sleeve
GND
Standard TRRS Type Headphone / Microphone Combo Jack Plug (support audio / headphone output and
microphone input)
Tip
Line-Out_L
Ring-1
Line-Out_R
Ring-2
GND
Sleeve
Mic-In
OMTP TRRS Type Headphone / Microphone Combo Jack Plug (support audio / headphone output only)
Tip
Line-Out_L
Ring-1
Line-Out_R
Ring-2
Mic-In
Sleeve
GND
