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TN211-6.DOC
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1993-08-09
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TN211-6.DOC
NODE CHECKOUT
*****************
Before placing the node in service, it is a good idea to verify modem tone
frequency accuracy. This can be done by using a frequency counter on the TNC
audio output together with the alignment tone commands. Or, by following the
modem calibration procedure using the firmware chip as described in the TNC
manual. Carefully save the original TNC firmware chip for possible future use.
NOTE: Sometimes the contents previously stored in RAM memory will
interfere with node initialization when the TNC is first powered ON. This
situation has been observed after replacing the TNC firmware chip with the new
nodechip. The solution is to turn the TNC off and pull the battery jumper (JMP
5 on MFJ's) for about one minute. The power down process deletes the contents
previously held in RAM memory. Reinstall the battery jumper and the TNC should
initialize properly.
Using a standard RS-232 cable, such as the one between the TNC and
terminal, connect the terminal to the noded TNC. Make sure the TNC to
terminal data rate is set to agree with each other! Power on the TNC. The STA
and CON LED's should go on and then off. A TNPlus sign-on message will appear
on the terminal's screen. Approximately 6 seconds after initial TNC power-
on, the PTT LED will flash. Connect to the new node by pushing the ESC C
<enter> keys. The screen should now read: "CONN to <callsign>".
At this time verify the node is working by checking out its commands.
Type: "I" <return>, "H" <return>, "N" <return>, "P" <return>, "R" <return>,
"S" <return>, "U" <return>, an invalid command such as "W" <return>, and "B"
<return>. You should get an appropriate response back from each of these node
commands. Operating the node in this manner is called "Host Interface" and is
similar to using a regular TNC in the NON-MONITOR mode. You will NOT be
able to monitor unconnected packets.
Reconnect to the node and if a nearby station or node is operational,
connect to it by issuing the standard "C <callsign>" command. (The "C alias"
command will not work until the node has become aware of its neighbor.) All
of the normal packet activities can be conducted while connected as the Host.
After the TNC has been powered on for six seconds or so, the node will issue a
NODES broadcast which will be recognized by nearby line-of-sight nodes. NOTE:
If one doesn't want knowledge of the node to be injected into the network, pull
the TNC-to-radio connector until after the 6 - 10 second initial turn-on period
has elapsed. When satisfied the node is performing satisfactorily, disconnect
with either the B command, or the ESC D command.
A unique password string has been hard burned into the "TNPlus" node chip.
Remember this password string since from time to time, you'll need to enter new
material into the INFO section. To view the node's password string, it will be
necessary to enter the ROM image for that specific node into the SET210 utility
and view menu selection 36. An important note: The password string is CASE
sensitive, which means it will not accept a lower case letter when a capital
letter is required.
To remotely SYSOP the node, connect to it by issuing a "C <nodealias>"
command and then type "S". A random series of 5 numbers will be returned.
Enter the password string that corresponds to these numbers. (Review the SYSOP
COMMAND LIST files for more details). The node will ignore you. To test the
success of the SYSOP command, type "P <return>". This will return a string
of numbers, representing the default values for the various node parameters.
Note the value of the first number (typically 86). Type "P 1 100". If correct
the first number will be the new value "100". Type "P 1 <original number>" to
restore the original first number.
Now that you have been accepted as a SYSOP, new information can be put into
the INFO section. One may want to place information about the node's QTH and
operating frequency. Following that, one might want to mention the next radio
club meeting, callsign of the local BBS, or other information of interest to
local and distant users. For example, as SYSOP,
enter:
"I CARA elections coming up on the Sept 3rd meeting, 7PM" <enter>
The node will echo this line. For specific information on how to write into
the INFO section, review the material presented in the SYSOP COMMAND LIST.
As SYSOP, one can also change the parameters. In fact, one was changed in
the example above. The default node parameters have been carefully set for
proper operation. (IT IS NOT RECOMMENDED THEY BE CHANGED UNLESS YOU HAVE A
STRONG REASON FOR DOING SO!) The node parameters modify the surrounding node
network performance in subtle, and sometimes not so subtle, ways. An
improperly set node parameter can harm the overall network thruput. Before
making any changes, read over this manual carefully and consult with your
neighbor NodeOps to get a feel for what the change may do.