Serial Interface Selection
The serial adapter supports different interface types which are selected by placement of jumpers on the
card. Each port has three rows of headers (pins sticking up from the card). Each row is labeled with a
port number and an interface type (RS-232, V.35, RS-422/485). Place jumpers on the header row labeled
with the desired interface type. The interface type must match that of the connected communications
equipment.
Interface selection is preset at the factory as specified by the ordering code. The selection may be
changed by moving the jumpers to the desired header row as described above. Use pliers to remove the
jumpers from the current position, carefully working the jumpers loose from the headers. Take care to
not damage the card or cause injury.
Some interface types require a conversion cable in addition to a specific jumper setting to provide the
necessary connector type. Refer to the Serial Pin Assignments section for more details.
Figure 2 Interface Selection Jumpers
