MSI MS-9856, User Manual, Page: 26 / 63

2-8
Hardware Setup
▍
Serial port Connector: J2
This connector is a 16550A high speed communications port that sends/re -
ceives 16 bytes FIFOs. You can attach serial devices to it through the optional
serial port bracket.
J2
1
41
2
42
pIN SIGNaL pIN SIGNaL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
COM_NDCD2
COM_NRD2
COM_NTD2
COM_NDTR2
GND
COM_NDSR2
COM_NRTS2
COM_NCTS2
VCC_COM2
No Connection
COM_NDCD3
COM_NRD3
COM_NTD3
COM_NDTR3
GND
COM_NDSR3
COM_NRTS3
COM_NCTS3
VCC_COM3
No Connection 21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
COM_NDCD4
COM_NRD4
COM_NTD4
COM_NDTR4
GND
COM_NDSR4
COM_NRTS4
COM_NCTS4
VCC_COM4
No Connection
COM_NDCD5
COM_NRD5
COM_NTD5
COM_NDTR5
GND
COM_NDSR5
COM_NRTS5
COM_NCTS5
COM_NRI5
No Connection