Serial Gateway - Honeywell XYR 400E User Manual

3.13.2 Serial Gateway

Serial Gateway functionality is available for both RS-232 and RS-485 ports independently, and
enables serial data to be routed via the wired or wireless network connection. Serial Gateway
functionality is similar to radio modem functionality, allowing point-to-point and multipoint serial
data transfer.
Each XYR 400E serial port may be configured as Server, Client, or Multicast Group. When
configured as Server, the module will wait for a connection to be initiated by a remote client. When
configured as Client, the module will automatically attempt to connect to the specified remote
server. When configured as Multicast Group, the module will broadcast data to all members of the
same Multicast Group.
Some of the possible Serial Gateway topologies are illustrated below. As can be seen, it is possible
for serial data from a XYR 400E to be transferred to one or more XYR 400E serial ports, or to be
encapsulated within a TCP/IP socket for availability on an Ethernet network. Conversely, data
encapsulated in a TCP/IP socket can be reproduced at a XYR 400E serial port. Both XYR 400E
serial ports and the hard wired Ethernet port can be in use at the same time.
Client
RS232
Device
RS232
Server
LAN
PC Running Telnet
or SerialIP
Client
RS485
Device
RS485 Multicast
Group
There are software packages available (i.e. SerialIP Redirector by Tactical Software) that can create
a virtual serial port on a PC. This virtual serial port can be configured to connect to a XYR 400E
serial port. Standard programs can then be used to access this serial port as if it were actually
Version 1
5/1/08
Access
Point
RS485
Device
RS485
Client
Client
Access
Point
RS485
Device
RS485 Multicast
Group
XYR400E Ethernet Modem
Access
Point
RS232
Device
RS232
Client
Access
Point
Client
RS232
Device
RS232 Multicast
Group
Client
RS232
Device
RS232
Server
Client
RS232
Device
RS232
Server
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