user manual

Connectors
http://www.motorola.com/computer/literature 5-33
5
Ethernet Connectors
Ethernet 1 (J13) and Ethernet 2 (J18) use standard RJ-45 connectors.
Serial Port Connectors
COM 1 (Serial Port 1, J21) and COM 2 (Serial Port 2, J10) use 2 x 9-pin
D-sub connectors.
Table 5-16. Ethernet Connector Pin Assignments (J13 and
J18)
Pin Signal Mnemonic Signal Description
1 TX+ Differential transmit lines
2 TX- Differential transmit lines
3 RX+ Differential receive lines
4-- --
5-- --
6 RX- Differential receive lines
7-- --
8-- --
Table 5-17. Serial Port Connector Pin Assignments
(J21 and J10)
Pin
Signal
Mnemonic Signal Description
1 DCD- Data set has detected the data carrier
2 RX Receives serial data input from communication link
3 TX Sends serial output to communication link
4 DTR- Data set is ready to establish a communication link
5 GND Ground