ASRock SBC-311 [18/41] Buzzer header

ASRock SBC-310 [18/41] Buzzer header
18
COM Port Headers
(10-pin COM1)
(see p.8 No. 23)
(10-pin COM2)
(see p.8 No. 21)
(10-pin COM3)
(see p.8 No. 19)
(10-pin COM4)
(see p.8 No. 17)
1
2
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
10 DUMMY 8 CCTS# 6 DDSR# 4 DDTR# 2 RRXD
9 DUMMY 7 RRTS# 5 GND 3 TTXD 1 DDCD#
PIN RS232 RS422 RS485
1 DCD TX- RTX-
2 RXD RX+ N/A
3 TXD TX+ RTX+
4 DTR RX- N/A
5 GND GND GND
6 DSR N/A N/A
7 RTS N/A N/A
8 CTS N/A N/A
9 NA/+5V/+12V N/A N/A
This motherboard supports RS232/422/485 on COM1/COM2 port. Please refer to
below table for the pin denition. In addition, COM1/COM2 port (RS232/422/485) can
be adjusted in BIOS setup utility > Advanced Screen > Super IO Conguration. You
may refer to page 31 for details.
COM1/COM2 Port Pin Denition
Buzzer Header
(2-pin BUZZ1)
(see p.8 No. 4)
1
+5 V
SP KR
Chassis Intrusion Headers This motherboard supports
(2-pin CI1, CI2)
CASE OPEN detection feature
(see p.8 No. 29)
that detects if the chassis cover
has been removed. This feature
requires a chassis with chassis
intrusion detection design.

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