ET270L
DIGITAL AND DATA COMMUNICATIONS LAB
INSTRUCTOR: Tom Wheeler - Office Room 208
twheeler@kc.devry.edu
http://www.kc.devry.edu/homepages/twheeler
CREDIT HOURS: 1.0
NOTE: This is an advanced laboratory course. It is strongly suggested that you be enrolled in ET270 while taking it.
The following are planned dates for completion of the laboratory experiments of ET270L. Note that the lab reports are due during the lab section in that week. Late reports (up to 1 week) are penalized
10%. Reports more than one week late are not accepted for credit.
EXPERIMENT DESCRIPTION OF REPORT DUE
NUMBER EXERCISE WEEK #_______
1 FIBER OPTICS 3
2 UART DATA TRANSMISSION 5
3 UART DATA RECEPTION 7
4 FULL-DUPLEX UART DATA LINK 9
5 RS232 INTERFACE 11
6 FIBER OPTIC SERIAL DATA LINK 13
7 WIRELESS DIGITAL DATA (OPTION) 14
Lab Reports
Every person will write and turn in a complete lab report for each experiment performed in ET270L. The report format is similar to what might be required of a technician in industry. The general content will be as follows:
YOUR NAME
COURSE / SECTION (ET270L 4T)
LAB NUMBER AND TITLE
DUE DATE (WEEK #)
FOR: PROFESSOR WHEELER
SIGN OFF____
Hint: Make sure to have a completed cover page when you start each lab.
This makes it easy to get a sign-off when the experiment is completed.
d) RECORDED OBSERVATIONS -- This contains two important elements:
1) Written description of circuit operation -- MUST BE TYPED OR COMPUTER
PRINTED, and titled "CIRCUIT OPERATION." It contains a one-to-three
paragraph analysis of the operation of the circuit. The function of
each major component should be covered. Part of this information will
be covered in lecture, and other portions will be presented in each
experiment.
2) Laboratory notes -- again, TYPED or VERY NEATLY WRITTEN. Any observations
that do not fall into the category of RECORDED DATA (3) should be placed
here. This includes possible problems (and your methods of solution
to these problems), circuit changes you made to improve operation (if
any), and so forth. This section will be titled "LAB NOTES." In a
real-life situation, this is a very important part of the report. It
tells the engineer (or other technical person) how well the design
worked, or if it didn't work (in which case, you will tell HOW you
made it work--or WHY the design did not work in the first place.) The
labs you are performing in ET270L are of proven design, so the latter
will not apply here.
Grading
Each report in ET270L is worth 100 points. A total of 6 reports are required, therefore, 600 points are possible in this course. There is no "extra credit."
Letter grades are assigned as follows:
Letter Grade Percentage % Quality Of Work
------------------------------------------------------------------------------------
A 90 - 100% Far above average
B 80 - 89 % Above average
C 70 - 79 % Average; meets expectations
D 60 - 69 % Below expectations
F < 60 % Inadequate, failing
TURNING IN WORK
Work may only be turned in directly to the instructor, or his appointed representative, during the laboratory period. Do not turn in papers to room 208.
GETTING A SIGNOFF
Signoffs are normally given during the assigned laboratory period. Your circuit board must be clearly marked with your name in order to receive a sign-off. It is preferred that you mark it on top, but if that bothers you while constructing circuits, you may mark it on the side (but not the bottom.)
COURSE POLICIES
I. Lab Partners: There are no lab partners allowed in ET270L, with the exception of experiments 3, 4, and 6, where a partner is required.
II. Handing Work in: Work should be given directly to the instructor or his authorized assistant. Under no circumstances should work be turned in to any other persons (including the office) without advance permission from the instructor.
III. Late Work: Reports are due during the assigned lab period, and are late when that period is over. The laboratory period ends at xx:50 UTC of the second hour of the assigned period. (UTC=Coordinated Universal Time, Standard World Time). Late reports are assessed a 10% penalty. Reports more than one week late are not accepted.
IV. Lab Success Hints: The successful student will have all circuits built and ready to test before coming to lab. Lab handouts and other information distributed in class are extremely important, and should be studied and understood before attempting the experiment. Try a "dry run" in your mind the day before the experiment to see if you can recall the important steps, setups, and results. SAVE ALL LAB HANDOUTS, YOU WILL NEED THE INFORMATION FROM THEM ALL TERM!
V. Plagiarism: Copying the work of another, and claiming it to be your own is plagiarism. This includes (but is not limited to) copying others homework, copying from a lab manual or textbook, or collusion. The minimum penalty for cheating in any form is a grade of zero for the element involved; in some cases, failure of the course and/or expulsion from the Institute will also result. All cases of misconduct will be documented and forwarded to Student Services for disciplinary consideration. The DeVry Student Handbook contains complete information on this topic.
Please do not turn in any work that is not your own! If in doubt, ask the instructor. Here are some ways to avoid any problems:
MISCELLANEOUS INFORMATION
Emergency Procedures: There are plaques located in the lab discussing
emergency procedures. The instructor will remain in charge of your class
group in an emergency.
Food and Drink: Are not allowed in the laboratory at any time, even in closed containers. Violators will be expelled from the laboratory.
GOOD DATA PROCESSING PROCEDURES
Computers will be used extensively in this lab. The following tips will help to minimize the chance of losing a project: