Measurement Computing Extender488 - Manual (Page 13)

Section 2 Getting Started
2. 3
WARNING
Never open the Extender488 case while it is connected to th e AC line.
Failure to obs erve 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.
Extender488 Baud Rate Selection
DOT
Switch
Side
View
OPEN
1 2 3 4 0
1
S102
1 2 3
0 0 0
1 0 0
0 0 1
1 1
1
1
1
1
0
0
0
1
1
0
1
0
1
300
600
1200
2400
4800
9600
19200
115200
Baud Rate
Default = 115200
2.2.2 Extender488 Serial Data Format Selection
The Extender488 is configurable for two data formats. The first, factory default, format is 8
data bits, 1 stop bit with odd parity. The number of data bits transmitted can be set to 7 by setting
S102 switch
4 to the closed position. Even though the seven bit format is chosen, binary data can
still be transferred over the Extender488's. There will, h owever, be a slight degradation in data
transfer speeds with this format.