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Chapter 2: Jumpers and Connectors
COM4 Port
Connector type: DB-9 port, 9-pin D-Sub
Connector location: CN1
1
5
6
9
RS232
Pin
Definition
Pin
1
SP4_DCD
1
2
SP4_RXD
2
3
SP4_TXD
3
4
SP4_DTR
4
5
GND
5
6
SP4_DSR
6
7
SP4_RTS
7
8
SP4_CTS
8
9
SP4_RI
9
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RS485
RS422
Definition
Pin
Definition
SP4_DATA-
1
SP4_TX-
SP4_DATA+
2
SP4_TX+
NC
3
SP4_RX+
NC
4
SP4_RX-
GND
5
GND
NC
6
SP4_RTS-
NC
7
SP4_RTS+
NC
8
SP4_CTS+
NC
9
SP4_CTS-
HDMI
Connector type: HDMI port
Connector location: CN6
19
18
2
1
Pin
Definition
1
HDMI_DATA2_P
3
HDMI_DATA2_N
5
GND
7
HDMI_DATA0_P
9
HDMI_DATA0_N
11
GND
13
NC
15
HDMI_CTRL_CLK
17
GND
19
HDMI_HPD_R
MH2
CHASSIS_GND
MH4
CHASSIS_GND
15
Pin
Definition
2
GND
4
HDMI_DATA1_P
6
HDMI_DATA1_N
8
GND
10
HDMI_CLK_P
12
HDMI_CLK_N
14
NC
16
HDMI_CTRL_DATA
18
VCC5_HDMI
MH1
CHASSIS_GND
MH3
CHASSIS_GND
NISE 105/105A User Manual
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