Nortel Circuit Card Installation Manual page 405

settings shown in this figure are an example of the different types of interfaces
available. Your system settings may differ.
Table 154
MSDL interface switch settings
DCE DTE
switch switch
OFF OFF
OFF ON
ON OFF
ON ON
NT6D80 MSDL card
Interface Comment
RS-232 DTE/DCE is software configured
RS-422 DTE All switches configured
RS-422 DCE All switches configured
N/A Not allowed
Circuit Card
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Description and Installation