PSI System Controls and Diagnostics
A500 User Manual
A500_UM_090115 Page 38 of 61
11.2.3 Ethernet communications
RJ-45 female. To mate with RJ-45 male on standard CAT5 eight-way twisted pair network
cable.
1
8
Pin
ID
Function
Note
Patch cable
Crossover cable
1
TX_D1+
Transmit data +
White / orange
White / green
2
TX_D1-
Transmit data -
Orange (/ white)
Green (/ white)
3
RX_D2+
Receive data +
White / orange
White / orange
4
BI_D3+
Bidirectional data +
Not used by A500
Blue (/ white)
Blue (/ white)
5
BI_D3-
Bidirectional data -
Not used by A500
White / blue
White / blue
6
RX_D2-
Receive data -
Green (/ white)
Orange (/ white)
7
BI_D4+
Bidirectional data +
Not used by A500
White / brown
White / brown
8
BI_D4-
Bidirectional data -
Not used by A500
Brown (/ white)
Brown (/ white)
The A30 Ethernet processor supports Auto MDIX, so the assignment of transmit and receive is
altered as necessary when a connection is made.