Measurement Computing Digital232 - Manual (Page 11)

Section 2 Getting Started
2.3
Switch S1 is the 8-position dip switch close to the front of the unit. Switch S2 is
near the rear power switch. To modify any of these defaults, follow this simple
procedure:
Disconnect the power supply from the AC line and from the interface.
Disconnect any digital I/O or serial cables prior to disassembly.
WARNING
Never open the Digital232 case while it is connected to
the AC line. Failure to observe this warning may result
in equipment failure, personal injury or death.
Remove the four screws located in each corner of the rear panel. Hold the
case firmly and pull the rear panel outward, noting the slot location of the main
circuit board. Modify those parameters which are appropriate for your
installation and reassemble the unit. Slide the main circuit board into the
previously noted slot and finish reassembly by tightening the four screws into
the rear panel.
2.2.1 Serial Baud Rate Selection
S1-1 through S1-4 determine the serial baud rate. The factory default is 9600
baud. The baud rate may be selected from 110 to 19200. (Switch S1 is located near
the front of the interface)