DS6500
24
2
2.3.2 Lonworks
Connectors
The local network used by DS6500 exploits a Lonworks standard communication system
requiring only two wires (polarity insensitive) to enable a connection. The connector also
provides a positive and a negative supplying wire. In this way, all the slave readers can be
powered by the master through the Datalogic standard cables.
When working in applications requiring enhanced synchronization capabilities, the DS6500
master reader (output) transmits two system signals named Sys_I/O and Sys_Enc_I/O to the
slave readers (input). For example, when working with applications requiring an encoder the
signal is received by the master and directly transmitted to the slaves through the cable.
The internal circuits generating the system signals are externally supplied by means of the
VS_I/O and REF_I/O pins and are isolated from the reader supply voltage.
The use of these system circuits is not required in all the operating modes (see par. 2.7 for
details). Anyway, for a correct system functioning it is suggested to use Datalogic cables and
accessories and follow the description of the typical layout (see par. 2.7 for details).
5
1
9
6
Female (all models)
1
5
6
9
Male (Master/Slave model)
Figure 39 - Local Lonworks Connectors
DS6500 9-pin Lonworks connector pinout
Pin Name
Function
1 Shield
Cable
shield
9
VS
Supply voltage - positive pin
2
GND
Supply voltage - negative pin
6
VS_I/O
Supply voltage of I/O circuit
3
Ref_I/O
Reference voltage of I/O circuit
4
SYS_ENC_I/O
System signal
5 SYS_I/O
System
signal
7
LON A
Lonworks line (polarity insensitive)
8
LON B
Lonworks line (polarity insensitive)
Network Termination
When building a Lonworks system the network must be properly terminated by positioning
BTK-6000 terminator in the DS6500 master reader and in the last DS6500 slave reader.
Each side of the terminator provides a different connector; thus, it can be inserted either in
the Lonworks 9-pin male connector of the master reader or in the Lonworks 9-pin female
connector of the last slave reader:
