WAGO-I/O-SYSTEM 757
Glossary
85
757-801 Bluetooth® Module RS-232
Manual
1.0.0
C
Channel
A (transmission) channel is a mechanism or resource that enables data
transmission over space or time.
Channel map
The channel map defines for a quantity of available channels the portion thereof
that is to be used or not used. This makes it possible to reserve certain frequencies
for transmission by other devices or technologies.
CoD
(
C
lass
o
f
D
evice)
The
Bluetooth
®
Class of Device (CoD) is a 24-bit field that indicates to what
standard device type (such as mobile phone or hands-free calling kit) a
Bluetooth
®
device corresponds. Vendor-specific types may also be used in addition to
standard types.
CR
(
C
arriage
R
eturn)
A “carriage return” is an instruction for text output devices to go to the beginning
of the line. In digital word processing/transmission this function causes the cursor
to return to the beginning of the line; it is transmitted by the “carriage return”
(CR) control character.
CTS
(
C
lear
T
o
S
end)
Control line for an RS-232 interface that grants “send permission”: a High level at
this input is a signal to the remote peer that it can receive this data.
D
Device name
The
Bluetooth
®
name of a device. This name can be queried by other
Bluetooth
®
devices via a radio link.
D-Sub
(D-Subminiature)
Design of a plug connecting system for data links.
F
FCC
(
F
ederal
C
ommunications
C
ommission)
Approval authority for communications devices in the USA