Biostar M7MKB M7MKB user's manual - Page 20
Signal, DB9 PIN, DB25 PIN
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Chapter 1 Motherboard Description Signal DCD RX TX DTR GND DSR RTS CTS RI Name Data Carrier Detect Receive Data Transmit Data Data Terminal Ready Signal Ground Data Set Ready Request to Send Clear to Send Ring Indicator DB9 PIN 1 2 3 4 5 6 7 8 9 DB25 PIN 8 3 2 20 7 6 4 5 22
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Chapter 1
Motherboard Description
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Signal
Name
DB9 PIN
DB25 PIN
DCD
Data Carrier Detect
1
8
RX
Receive Data
2
3
TX
Transmit Data
3
2
DTR
Data Terminal Ready
4
20
GND
Signal Ground
5
7
DSR
Data Set Ready
6
6
RTS
Request to Send
7
4
CTS
Clear to Send
8
5
RI
Ring Indicator
9
22