IEI Technology ECW-281B-D525, User Manual

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ECW-281B/B2-D525 Embedded System
Page 37
4.2.4.4 COM 6 Function Select Jumper (ECW-281B-D525 Series Only)
NOTE:
The RS-422/485 function is an optional choice of the ECW-281B-D525
Series. Please make sure the system you have has RS-422/485
function before making any further configuration.
Jumper Label:
JP1
Jumper Type: 8-pin header
Jumper Settings: See
764
Table 4-5
Jumper Location: See
764
Figure 4-5
The COM 6 Function Select jumper sets the communication protocol used by the second
serial communications port (COM 6) as RS-232, RS-422 or RS-485. The COM 6 Function
Select settings are shown in
764
Table 4-5
.
COM 6 Function Select Description
Short 1-2 RS-232 Default
Short 3-4 RS-422
Short 5-6 RS-485
Short 5-6, 7-8 RS-485 with RTS control
Table 4-5: COM 6 Function Select Jumper Settings
The COM 6 Function Select jumper location is shown in
764
Figure 4-5
.
Figure 4-5: COM 2 Function Select Jumper Location