Motorola MVME2700 Series Installation And Use Manual page 40

Headers J2 and J3 are used to configure serial port 3 and serial port 4,
respectively, in tandem with SIM selection. With the jumper in position
1-2, the port is configured as a DTE. With the jumper in position 2-3, the
port is configured as a DCE. The jumper setting of the port should match
the configuration of the corresponding SIM module.
1
1
When installing the SIM modules, note that the headers are keyed for
proper orientation.
For further information on the preparation of the transition module, refer
to the user's manual for the MVME761, listed in
The next figures illustrate the MVME2700 base board and MVME761
transition module with the interconnections and jumper settings for
DCE/DTE configuration on each serial port.
http://www.mcg.mot.com/literature
J2 J2
2 3 1 2
DCE DTE
J3 J3
2 3 1 2
DCE DTE
MVME761 Transition Module Preparation
Serial Port 3 jumper settings
3
Serial Port 4 jumper settings
3
Related Documentation.
2-21
2