1. The local console must be attached to COM1 via a Null
Modem serial cable whose RIN (pin 9) and DTR (pin 4) lines are tied
together. To make your own console cable, please refer to the diagram below.
eXMP Console Cable Wiring Diagram
![](../images/console_cable1.gif)
![](../images/board_front_com1.jpg)
The short between these two pins indicates the presence of a valid
console device and is detected during system initialization by the
eXMP, thereby enabling the Console output to COM1. This can be done
with either an inline adapter or modifications to the Null Modem
cable itself. The eXMP-SynqNet must be placed into console mode to exercise
the instructions listed in the Changing
Boot Parameters section.
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