Local Echo; Pass Through - Datalogic DS41-X0 Installation Manual

DS41
2.9.2

Local echo

In local echo mode data is transmitted on the auxiliary interface as well as on
the main interface.
Host Mode programming can be accomplished either through the main
interface or the auxiliary interface in local echo mode.
1
2.9.3

Pass through

Pass through mode allows two or more devices to be connected to a single
external serial interface.
Each DS41 transmits the messages received by the auxiliary interface onto
the main interface.
All messages will be passed through this chain to the host. The main and
auxiliary ports are connected as shown in the figure below:
1
Host
2.28 - Installation
Terminal
2
Host
3
Figure 2.35 - Local echo layout
DS41
2
3
Figure 2.36 - Pass through layout
1 Main serial interface
2
Auxiliary serial interface
DS41
3
Presence sensor
1
3
Main serial interface
1
2 Auxiliary serial interface
3 Presence sensor
DATALOGIC
DS41