Dell Precision M60 Service Manual page 26

Pin Signal Pin
1 DCD 6
2 RXDA 7
3 TXDA 8
4 DTR 9
5 GND
Dell D/Bay Connector
Pin Signal Pin
1 USB_VCC 8
2 USB_D- 9
3 USB_D+ 10
4 USB_GND 11
5 PWR_SRC 12
6 SMB_DAT 13
7 MODPRES# 14
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Signal
DSR
RTS
CTS
RI
Signal
SMB_CLK
GND
SHIELD GND
SHIELD GND
SHIELD GND
SHIELD GND
SHIELD GND