AXIOMTEK SHB130 Series, Руководство пользователя

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SHB130 LGA1150 Full-size CPU Card
18 Board and Pin Assignments
2.4.17 COM Connectors (COM1~COM5)
The COM1 port supports RS-232/RS-422/RS-485 mode operation, see table below for
its pin assignments. You can change the transmission mode via BIOS setting.
The COM2~COM5 ports support RS-232 only, see table below.
COM2,COM3,COM4,COM5
Pin RS-232 RS-422 RS-485
1
Data Carrier
Detect (DCD)
TX- DATA-
2
Data Set Ready
(DSR)
No connector No connector
3
Receive Data
(RXD)
TX+ DATA+
4
Request to Send
(RTS)
No connector No connector
5
Transmit Data
(TXD)
RX+ No connector
6
Clear to Send
(CTS)
No connector No connector
7
Data Terminal
Ready (DTR)
RX- No connector
8
Ring Indicator
(RI)
No connector No connector
9 Ground (GND) GND GND
10 Disconnect (NI) NI NI
Pin Signal
1 Data Carrier Detect (DCD)
2 Data Set Ready (DSR)
3 Receive Data (RXD)
4 Request to Send (RTS)
5 Transmit Data (TXD)
6 Clear to Send (CTS)
7 Data Terminal Ready (DTR)
8 Ring Indicator (RI)
9 Ground (GND)
10 Disconnect (NI)