Installation manual

INSTALLATION
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3.6.4 RS232 Master/Slave
The RS232 master/slave connection is used to collect data from several scanners to build
either a multi-point or a multi-sided reading system; there can be one master and up to 9
slaves connected together.
The Slave scanners use RS232 only on the main and auxiliary serial interfaces. Each slave
DS2100N transmits the messages received by the auxiliary interface onto the main interface.
All messages will be passed through this chain to the Master.
The Master scanner is connected to the Host on the main serial interface. The possible main
interface types for the master scanner are RS232 or RS485. (20 mA C.L. can also be used if
the INT-30 with C BOX 100 accessory is installed).
There is a single reading phase and a single message from the master scanner to the Host
computer.
Either
On-Line or Serial On-Line Operating modes can be used in this layout.
When On-Line Operating mode is used, the external trigger signal is unique to the
system, however it is not necessary to bring the external trigger signal to the Slave
scanners.
The main and auxiliary ports are connected as shown in the figure below.
1
 Main Serial Interface (RS232 only)
 Auxiliary Serial Interface (RS232)
 External Trigger (for On-Line Mode)
DS2100N Slave
2
2
DS2100N
lave S
Master
DS2100N
1
Host
1
3
Figure 42 – RS232 Master/Slave Layout
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