Avalue EEV-EX03 User Manual
Page 37

Quick Installation Guide
EEV-EX03 Quick Installation Guide 37
Signal
PIN PIN
Signal
SIDE_D1
D61 D62
PIDE_D14
SIDE_D13
D63 D64
PIDE_D1
GND
D65 D66
GND
SIDE_D2
D67 D68
PIDE_D13
SIDE_D12
D69 D70
PIDE_D2
SIDE_D3
D71 D72
PIDE_D12
SIDE_D11
D73 D74
PIDE_D3
SIDE_D4
D75 D76
PIDE_D11
SIDE_D10
D77 D78
PIDE_D4
SIDE_D5
D79 D80
PIDE_D10
+5V
D81 D82
+5V
SIDE_D9
D83 D84
PIDE_D5
SIDE_D6
D85 D86
PIDE_D9
SIDE_D8
D87 D88
PIDE_D6
GPE2#
D89 D90
PIDE_P#
RTD-
D91 D92
PIDE_D8
RTD+
D93 D94
SIDE_D7
TXD-
D95 D96
PIDE_D7
TXD+
D97 D98
HDRST#
GND
D99 D100
GND
2.3.33 Signal Description – ETX Connector 4 (ETX4)
2.3.33.1 Ethernet Signals
Signal
Signal Description
TXD#, TXD
Ethernet Transmit Differential Pair. These pins transmit the serial bit stream on the
Unshielded Twisted Pair (UTP) cable. The current-driven differential driver can be
two-level (10BASE-T) or three-level (100BASE-TX) signals depending on the
mode of operation. These signals interface to the Ethernet cable through an
isolation transformer.
RXD#, RXD
Ethernet Receive Differential Pair. These pins receive the serial bit stream from the
isolation transformer. The bit stream can be transmitted in either two-level
(10BASE-T) or three-level (100BASE-TX) signals depending on the mode of
operation. These signals interface to the Ethernet cable through an isolation
transformer.
ACTLED
The Activity LED pin indicates either transmitted or received data activity on the
Ethernet port.
This pin is asserted low when activity is detected. It can sink 5mA to ground
through an external LED and a limiting resistor to a 3.3V source.
LILED
The Link Integrity LED pin indicates link integrity. This pin is asserted low when the
link is valid. It can sink 5mA to ground through an external LED and a limiting
resistor to a 3.3V source.