OBID i-scan
®
Manual
Communication FU
FEIG ELECTRONIC GmbH
Page 5 of 27
H30701-3e-ID-B
1. Communication between Reader and Function Unit
The function unit has an interface for communication with the reader. The communication takes
place trough the cable connection between the reader and the function unit. The function unit can
be controlled by means of the protocols described further below. Control of the function unit is pos-
sible either directly by the reader or by the application using commands from the host to the
reader.
Since communication and control of the function unit is accomplished using the antenna connec-
tion on the reader, no additional connection between reader and function unit or host and function
unit is required.
Figure 1 shows a system consisting of a host, e.g. a PC, the reader and the function unit:
Figure 1: System with one Function Unit
It is possible to connect multiple function units an a cascading arrangement. (see Figure 2).
Figure 2: System with more than one Function Unit
Reader
Host
Function
Unit 2
Function
Unit 3
Function
Unit 1
Function
Unit 4
Reader
Function
Unit
Host
