For DS8100A Lonworks Network layouts, power is always propagated
through the 17-pin scanner connectors. A specific jumper setting is required
in CBXs to pass scanner power to the presence sensor, encoder, etc.
7.1.1 Small Synchronized Network
When building a small local Lonworks network (less than 10 scanners), the DS8100A master
reader must be connected to a local host computer or a CBX connection box by means of a
cable connected to the 26-pin D-sub male connector.
The master reader connects to the first slave reader of the system through the local
Lonworks 17-pin female connector. The local Lonworks 17-pin male connector must be
properly terminated by inserting the BTK-8102 Lonworks terminator or be powered by the
CAB-86xx cable.
The slave readers are connected together through the local Lonworks connectors. Only the
17-pin female connector of the last slave reader must be terminated by the BTK-8100 bus
return or be powered by the CAB-83xx cable.
The presence sensor is connected and powered through the CBX by the scanner and is
unique to the system. There is only a single reading phase and a single message from the
master reader to the Local Host. The On-Line operating mode is used for this layout.
* P.S. (Presence Sensor) connected to Input 1 (External Trigger/PS) input.
** CBX100 jumper set to accept scanner power.
Figure 73 – Small Synchronized Network with 2 Readers
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