ASRock IMB-159 [22/41] Pin signal name pin signal name pin signal name pin signal name pin signal name
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ASRock IMB-159 [22/41] Pin signal name pin signal name pin signal name pin signal name pin signal name

ASRock IMB-159 [22/41] Pin signal name pin signal name pin signal name pin signal name pin signal name
22
Internal COM Port Headers:
COM1, 2 (RS232/422/485)
COM3, 4, 5, 6 (RS232)
(10-pin COM1~6: see p.8, No. 17)
LPC Header This connector supports a
(19-pin LPC1)
Trusted Platform Module (TPM)
(
see p.8, No. 26)
system, which can
securely store keys, digital
certicates, passwords, and
data. A TPM system also helps
enhance network security,
protects digital identities, and
ensures platform integrity.
SPDIF Header
(3-pin SPDIF1: see p.8, No. 27)
* This motherboard supports RS232/422/485 on COM1, 2 ports. Please refer to below table for the pin denition.
In addition, COM1, 2 ports (RS232/422/485) can be adjusted in BIOS setup utility > Advanced Screen > Super
IO Conguration. You may refer to page 32 our user manual for details.
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 PWR PWR PWR
10 N/A N/A N/A
COM1, 2 Port Pin Denition
1
2
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
PIN
Signal
Name
10
N/A
8 CCTS# 6 DDSR# 4 DDTR# 2 RRXD
9
PWR
7
RRTS#
5
GND
3
TTXD
1
DDCD#
1
GN D
GN D
S_ PW RD WN #
LA D2
SM B_ CL K_ MA IN
PC IC LK
PC IR ST #
LA D3
+3 V
LA D0
F_ CL KR UN #
FR AM E
SM B_ DA TA _M AI N
LA D1
SE RI RQ #
GN D
+3 VS B
48 MH z
+5 V
PIN
Signal
Name
PIN
Signal
Name
PIN Signal Name PIN Signal Name
8
GND
6
GND
4
USB2_PWR6_7
2
USB2_PWR6_7
7
MSCLK
5
MSDATA
3
KBDATA
1
KBCLK
PS2 Keyboard/Mouse Header
(8-pin PS2_KB_MS1: see p.8, No. 31)
+5V

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