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MSS User Guide 5: Using the MSS
5-6
Figure 5-10: Back-to-Back MSS Connections
TCP Configuration
Assuming the MSS serial port parameters have been configured properly, the device
servers are configured as follows for MSS-VIA and MSS4:
MSS_A
Local>> CHANGE PORT 1 DEDICATED TCP 192.168.0.10:3001T
Local>> CHANGE PORT 1 AUTOSTART ENABLED
MSS_B
Local>> CHANGE PORT 1 ACCESS REMOTE
Local>> CHANGE PORT 1 DEDICATED NONE
Local>> CHANGE PORT 1 AUTOSTART DISABLED
Configuration for MSS100 is as follows:
MSS_A
Local>> CHANGE DEDICATED TCP 192.168.0.10:3001T
Local>> AUTOSTART ENABLED
MSS_B
Local>> CHANGE ACCESS REMOTE
Local>> CHANGE DEDICATED NONE
Local>> CHANGE AUTOSTART DISABLED
Note: If the device servers are on different IP subnets, the default gateway on each unit
will have to be configured with the Change Server Gateway command.
The above commands create a raw (8-bit clean) TCP connection between the serial ports
of the two servers once the units have been power-cycled. The commands for MSS_A
ensure that it will automatically connect to MSS_B each time it is booted. The commands
for MSS_B ensure that it is always available to accept connections from MSS_A.
UDP Configuration
When the UDP protocol is used, there is no connection; each MSS must be told explicitly
which hosts it is allowed to accept packets from. Each MSS would have to be configured
to both send packets to and accept packets from the other MSS.
Configuration for MSS-VIA and MSS4 is as follows:
MSS_A
Local>> CHANGE PORT 1 DEDICATED TCP
192.168.0.10:4096U
Local>> CHANGE PORT 1 AUTOSTART ENABLED
Local>> CHANGE PORT 1 ACCESS DYNAMIC
MSS_B
Local>> CHANGE PORT 1 DEDICATED TCP
192.168.0.13:4096U
Local>> CHANGE PORT 1 AUTOSTART ENABLED
Local>> CHANGE PORT 1 ACCESS DYNAMIC
Configuration for MSS100 is as follows:
MSS_A
Local>> CHANGE DEDICATED TCP
192.168.0.10:4096U
Local>> CHANGE AUTOSTART ENABLED
Local>> CHANGE ACCESS DYNAMIC
MSS_B
Local>> CHANGE DEDICATED TCP
192.168.0.13:4096U
Local>> CHANGE AUTOSTART ENABLED
Local>> CHANGE ACCESS DYNAMIC