PCIe-COM-4SMDB and RJ Family Manual
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Chapter 3: Hardware Details
There only user-selectable options for this card are for applying a termination load to the RS-
485 lines. Channel protocols are selected via software.
Figure 3-1: Option Selection Map –DB Models
DB9M connector
“DB” models use an industry standard 9-pin Male D-Subminiature connector with screw locks