CB-OWSPA311GI-01 ConnectBlue, CB-OWSPA311GI-01 Datasheet - Page 24

• Manufacturer Part Number: CB-OWSPA311GI-01
• Description: KIT START OEM WIRELESS LAN RS232
• Manufacturer: ConnectBlue
• Series: OEM Serial Port Adapter™r
• Type: Bluetoothr

Specifications of CB-OWSPA311GI-01

• Frequency: 2.4GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 809-1018

Physical Topology
LLDP
The OWSPA311g only acts as an intermediary and does not produce any data itself. The OW-
SPA311g can receive data in two different ways; the UART (local peer) and the network (remote
peers). Any data received on the UART will be distributed to all the remote peers while the
module is not in AT-mode. However, any data received from one remote peer will only be sent
to the UART. It will not be distributed to all the remote peers.
Neither the UDP peer nor the UDP listener creates a full duplex channel peer. This means that
even if you create a UDP peer to another device on a specific port, the OWSPA311g will not lis-
ten on this port for incoming data; it will only send data received from the UART to this specific
destination. The opposite is true for the UDP listener. The UDP listener will only listen for data
on a specific port and distribute any data received to the UART. It will not try to send any data
received on the UART anywhere.
There are no differences in data flow between a TCP peer and a TCP listener once the connec-
tion is established. The data channel has full duplex abilities, unlike the UDP case.
This section will demonstrate a common topology setup for the OWSPA311g.
The OWSPA311g on the right could be connected to some form of sensors transmitting data,
which is then forwarded by the OWSPA311g on the left side to the computer that monitors the
process.
LLDP stands for link layer discover protocol and is an IEEE standard. The OWSPA311g module
uses LLDP for announcing its capabilities. The default settings are to send an LLDP packet every
60 seconds. This interval can be changed with the ATS4010 command. Setting this value to
zero will turn off the sending completely.
The OWSPA311g has three levels of information that can add more information to the LLDP
packet. The following list shows what’s included in the different levels.
Level 0:
Level 1:
Process monitor
•
•
•
MAC-address
IP-address
Time to live (the announce interval)
Serial connection
Version 1.6.6 - 2009-11
WLAN
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