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Internal I/O Connectors
X
COM (Serial) ports
2
4
1
5
8
2
6
JP2
1
5
2
6
JP3
1
5
2
6
JP1
1
5
PCIe 1 (PCIe x16)
1
2
LAN LED
(opt.)PCIe 2 (PCIe x4)
7
8
PCIe 3 (PCIe x4)
Front Audio
1
2
PCIe 4 (PCIe x16)
9
10
S/PDIF
PCIe 5 (PCIe x4)
1
1
2
6
1
5
PCIe 6 (PCIe x4)
11
20
1
1
1
1
10
1
„ COM Port Pin Assignment
RS232
Pin
RS232
with PWR
1
DCD-
+12V
2
SIN-
SIN-
3
SO-
4
DTR-
DTR-
5
GND
GND
6
DSR-
DSR-
7
RTS-
RTS-
8
CTS-
CTS-
9
RI-
+5V
User's Manual | CMS632-W480E/Q470E
DDR4_3
DDR4_1
1
System
1
+12V Power
1
Fan 1
5
1
Battery
14
13
Socket LGA1200
LPC
2
1
12
24
13
1
1
2
USB
11
10
11
1
20
1
2
DDR4_2
DDR4_4
9
10
5
1
6
2
5
1
Intel
JP27
1
2
6
2
5
1
5
6
6
2
W480E/Q470E
1
Top to bottom:
M.2 E Key
2230
(opt.)
COM2
2
COM3
1
M2JP1
JP7
1
9
5
1
2
COM4
6
2
1
9
2
1
9
COM5
2
1
9
PCI 1
2
COM6
CN37
1
9
1
SOJ2
M2JP2
1
JP26
2
10
1
1
1
Buzzer
1
1
1
1
1
1
1
M2JP3
DIO
M2JP4
Power
RS422
RS485
Full Duplex
RX+
Data+
RX-
Data-
SO-
TX+
---
TX-
---
GND
GND
---
---
---
---
---
---
---
---
The pin functions of COM 2 port will vary according to setting of JP6, JP7, JP8 and JP10. Re-
fer to "COM1/COM2 RS232/422/485 Select" and "COM1/COM2 RS232/Power Select" in this
chapter for more information.
Connecting External Serial Ports
Your COM port may come mounted on a card-edge bracket. Install the card-edge bracket to
an available slot at the rear of the system chassis then insert the serial port cable to the COM
connector. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of the COM
connector.
Chapter 2
HARDWARE INSTALLATION
25
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