Specifications

Appendix C - Glossary of Terms RS-422 And RS-485 Applications Ebook
Page 124 of 137 Manual Documentation Number: <DocNumber>
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Slave (Device)
A device which responds to commands by performing some action or returning
data. A slave does not send data until data is requested.
Smart Switch
A device that allows you to control or monitor multiple serial devices with a
single port. Sometimes called a "code activated switch" or "sharer"
Software Controlled
A software controlled device must be controlled by custom software that
specifies that particular device or the customer/engineer must provide for
custom programming that controls the device according to application needs.
Stop Bit
Number of bit times after a character is transmitted before the next character
can start transmission.
Suppression
Suppression limits the voltage on the input lines. Suppression attempts to
clamp or conduct voltages between lines on one side of the suppressor. High
voltages and heavy currents may exceed the rating of the device, causing it to
short or open, which is one reason some current limiting may be provided by
fuse or resistance. The suppressor may become faulty while attempting to
protect, so it may need to be replaced after a heavy surge or lightning.
Surge
A abnormal current or voltage that exceeds the normal maximum rating of a
device.
Surge Protection
Protection of a device from abnormal currents or voltages so that it is not
damaged, and will be likely to operate normally after the short term condition
ceases.