Specifications

10. Glossary
1. Parallel
Method which is used to send multiple data simultaneously, and its interface.
2. Serial
Method which is used to send data one bit per cable at the time. Antonym of Parallel.
3. RC-232C
Serial interface standard which is used to majority of PC and peripheral equipment.
4. D-Sub
One of the types of connector which is used for electrical communication. It has flat trapezoidal shape
topographical profile, and two rows of pins. There are few kinds of them such as 9-pins, 15 pins, 25
pins, 50pins, etc.
5. AWG (American Wire Gauge)
Standard of conductive wire which diameter is divided by certain ratio, and numbered.
i.e.) AWG16: 1.290mm AWG18: 1.020mm AWG20: 0.812mm
6. FG (Frame Ground) connector
Connector which is used to place casing.
7. Parity check
Error detecting method which adds extra 1 bit to data digit by computer and makes a situation when the
number of 1’s becomes either odd or even numbers.
8. baud rate
Unit of communication modulating speed
9. Checksum
algorithm used to detect error
10. Delimiter
a character that marks the beginning or end of a unit of data
11. ASCII Code
American standard code for information exchange legislated by ANSI