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Ack Delay (seconds): This is how long to wait for a response to a message (aka an
acknowledgement) before attempting a retry. The default value is 3 seconds, which is suitable for
a 115.2K baud direct connection. 10 seconds is recommended for a single hop 1200 baud system
connection. It should be increased if lower-baud rates or store and forward repeater hops are
necessary.
# Retries: More precisely, this is the total number of tries. When an SSP request is made that
requires a reply the system will wait for the Ack Delay for the reply. If a reply is not received
then one or more retries is performed. # Retries is the total number of attempts to make. The
default value is 3. Combined with the default Ack Delay of 3 seconds, this means SSP will send
the same message as many as 3 times, with a 3 second delay between each attempt before it will
timeout and report a ""tx error"". All retry messages have the same FLAG SEQUENCE number
as the original message. This is used to prevent the same message from being processed twice
due to a long network delay.
The preset buttons set the SSP timing according to 4 common scenarios. The 115.2k puts the
values back to their defaults. Smart Modem selects a very long (1 minute) ack delay and reply
delay since it’s expected the smart modem will perform retries, and will normally never fail, but
may take a while to send data when line conditions are poor. The “Slow & Smart” settings are
similar to the Smart Modem settings but include other enhancements to help Xterm perform over
a high latency but reliable connection such as a TCP/IP based cell phone modem. Eliminating
retries which would only conflict with the previous message still being sent is one such
improvement. “Slow & Smart” may also be selected from the command line with the /SLOW
option. 1200 baud selects settings designed to work with lower-baud rates and dumb radio
systems.
Redirector Settings
The Redirector button will display the Redirector Connection Settings screen containing options
for connecting to a station hosted on the Sutron Redirector service.
Below is a description of each option:
User Name: The name you were assigned to access the Sutron Redirector service.
Password: The password you were assigned to access the Sutron Redirector service.
URL: The IP address or URL of a custom Redirector service.
Port: The port number of a custom Redirector service.
Summary of Contents for Xpert2
Page 2: ......
Page 11: ...Chapter 1 Introduction...
Page 16: ......
Page 17: ...Chapter 2 Getting Started...
Page 86: ......
Page 87: ...Chapter 4 Graphical Setup Diagrams...
Page 104: ......
Page 105: ...CHAPTER 5 EXAMPLE SETUPS...
Page 128: ......
Page 129: ......
Page 130: ......
Page 131: ...Chapter 7 Installation...
Page 140: ......
Page 141: ...Chapter 8 Maintenance and Troubleshooting...
Page 145: ...Appendix A Setup Blocks...
Page 266: ......
Page 267: ...Appendix B Updating the Firmware...
Page 290: ......
Page 291: ...Appendix E Software Development Kit SDK...
Page 293: ...Appendix F Creating Custom Voice Files...
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