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Signal Molex Pin No. RJ-45 Port No. RJ-45 Pin No. Description
GND 63 NC NC No connection
GND 64 NC NC No connection
RXA9 65 9 1 Receive data +
RXB9 66 9 2 Receive data –
GND 67 NC NC No connection
GND 68 NC NC No connection
TXA9 69 9 7 Transmit data +
TXB9 70 9 8 Transmit data –
GND 71 NC NC No connection
GND 72 NC NC No connection
RXA8 73 8 1 Receive data +
RXB8 74 8 2 Receive data –
GND 75 NC NC No connection
GND 76 NC NC No connection
TXA8 77 8 7 Transmit data +
TXB8 78 8 8 Transmit data –
GND 79 NC NC No connection
GND 80 NC NC No connection
TXB5 81 5 8 Transmit data –
TXA5 82 5 7 Transmit data +
GND 83 NC NC No connection
GND 84 NC NC No connection
RXB5 85 5 2 Receive data –
RXA5 86 5 1 Receive data +
GND 87 NC NC No connection
GND 88 NC NC No connection
TXB0 89 0 8 Transmit data –
TXA0 90 0 7 Transmit data +
GND 91 NC NC No connection
GND 92 NC NC No connection
MT-RJ Ethernet Cable Connectors
The Ethernet ports on the 100BASE-FX interface module are MT-RJ receptacles. The following
table lists the signals for the MT-RJ Ethernet cable connector.
RXB0 93 0 2 Receive data –
RXA0 94 0 1 Receive data +
GND 95 NC NC No connection
GND 96 NC NC No connection
Pin Signal Direction Description
1 VeeRX — Receiver signal ground
2 VccRX <— Receive power supply
3 SD — Signal Detect
4 RD- <— Receiver data-
5 RD+ <— Receiver data+
6 VccTX —> Transmit power supply
7 VeeTX —> Transmit signal ground
8 Tdis — Transmit disable
9 TD+ —> Transmit data+
10 TD- —> Transmit data-
Signal Molex Pin No. RJ-45 Port No. RJ-45 Pin No. Description