Let suppose, that in the communication unit (modem, radio) there
is set the working frequency, power and that all parameters have the
default value. Then we set the address 690F1230
in one of them:Ne
Nodes:
retab
Nid|address |M | u s | L N |l w n g H|sTO Err Cent vTO hTO
(0) 004AE97E - S00| - R00|0 0 0 0 -| 15 SERV OFF 304 30
(1) 690F1230 S00 S00| - R01|0 0 0 0 -| 15 SERV OFF 304 30
(2) 00000000 S01 S00| - R02|0 0 0 0 -| 15 SERV OFF 304 30
(3) 00000000 S02 S00| - R03|0 0 0 0 -| 15 SERV OFF 304 30
(4) 00000000 S03 S00| - R04|0 0 0 0 -| 15 SERV OFF 304 30
de(f)ault (r)ead (w)rite
(I)nit (S)ync
(q)uit
>>Save all by the command (w)rite
and (I)nit. After new address setting
initialize the connection with Setr by command Alt+I.
The same things make in the opposite station with this different, that
the putted address is 690F1233
__________ radio __________
| | channel | |
PC ---| 690F1230 |..............| 690F1233 |
Setr |__________| |__________|Then give back the service cable in the first CU, perform Alt+I and write:
>>!h690F1233 Enter
Suffice it to write the last part of address only, which is different from the own or the last called address:
>>!h33 Enter
Now put the command for the packet sending:
>>! Enter
The packet is sent there and back and the connection report appears:
u S00 690F1230 R01 31/ 77 690F1233 serd serd 690F1233 R01 30/ 75 690F1230 u S00 690F1233h>
The address column describes the way of packet. On the left there is the incomming signal description (signal source or for radio signal it’s quality and strength DQ/RSS). On the right there is the direction in which the packet leaved the node.
In this case we need three CU. The assigning of routing tables put
in the CU 690F1230:
Nodes:
retab
Nid|address |M | u s | L N |l w n g H|sTO Err Cent vTO hTO
(0) 004AE97E - S00| - R00|0 0 0 0 -| 15 SERV OFF 304 30
(1) 690F1230 S00 S00| - R01|1 0 0 0 -| 15 SERV OFF 304 30
(2) 00000000 S01 S00| - R02|0 0 0 0 -| 15 SERV OFF 304 30
(3) 00000000 S02 S00| - R03|0 0 0 0 -| 15 SERV OFF 304 30
(4) 00000000 S03 S00| - R04|0 0 0 0 -| 15 SERV OFF 304 30We prescribe it the local table in CU 690F1230690F1233690F1200
Local retab. No 1 33 to:00 >>
After command !h33 Enter we obtain next report:
u S00 690F1230 R01 30/ 68 690F1200 R01 31/ 68 690F1233 serd serd 690F1233 R01 30/ 71 690F1230 u S00 690F1233h>
We can see, that the packet from 690F1200690F1233690F1200 but in the opposite direction
remained the direct route, because the routing table is not fullfiled in
690F1233
PC---690F1230...>...690F1200...>...690F1233
: :
:...........<...........:Now put also in CU 690F1233
Local retab. No 1 30 to:00 >>
and assign the set of tables 1 also to the address 690F1233 . The packet runs now in both
directions through 690F1200:
u S00 690F1230 R01 27/ 68 690F1200 R01 30/ 68 690F1233 serd serd 690F1233 R01 31/ 69 690F1200 R01 30/ 65 690F1230 u S00 690F1233h>
The connection line is similar in both directions:
PC---690F1230.......690F1200.......690F1233
Now both end points can be out of touch (the radio signal between
them is too weak) but if each of them can hear the station 690F1200, they can communicate
together.
The configuration modifications can be done by service cable but more often the distant access through the radio channel is used. We remain connected by the service cable to the local station and hand on the service packets by radio channell to the distant station. If we obtained in the last example after command:
>>!h33 Enter
Enter this response, then the last line
690F1233h>
announces, that we are switched in the 690F1233 station and all commnads, we
are putted in, will be performed in this station. Notice the change
shape of prompt from
>>
which refers to local access to
690F1200h>
denoting the access in the distant station. To return to the local access type:
690F1233h>!l Enter
Notice the longer response to service command for reading and writing into memory in the distant CU. Switch to the distant station
>>!h33 Enter Enter
and choose from the main menu
690F1233h>Ne Enter
Now takes place the service packet exchange between the stations, which takes according to the connection conditions from several tenth of seconds to several seconds and then the report appears
get NODE 0 O.K. get NODE 1 O.K. get NODE 2 O.K. get NODE 3 O.K. get NODE 4 O.K. 690F1233h>
which says, that the menu Node edit was succesfully
transfered from the distant station into our program Setr. Display this
menu by Enter and write e.g. the new address and routing
table assignement in the Node 2.
Nodes:
retab
Nid|address |M | u s | L N |l w n g H|sTO Err Cent vTO hTO
(0) 004A1E27 - S00| - R00|0 0 0 0 -| 15 SERV OFF 304 30
(1) 690F1233 S00 S00| - R01|1 0 0 0 -| 15 SERV OFF 304 30
(2) 690F1234 S01 S00| - R02|0 0 0 0 -| 15 SERV OFF 304 30
(3) 00000000 S02 S00| - R03|0 0 0 0 -| 15 SERV OFF 304 30
(4) 00000000 S03 S00| - R04|0 0 0 0 -| 15 SERV OFF 304 30
de(f)ault (r)ead (w)rite
(I)nit (S)ync
(q)uit
690F1233h>These changes are yet done in our Setr and only by command (w)rite we send them into distant station. We obtain the acknowledgement about succesful writing in the flash memory:
write NODE 0 O.K. write NODE 1 O.K. write NODE 2 O.K. write NODE 3 O.K. write NODE 4 O.K. 690F1233h>
Now we perform similarly the writing in the RAM memory by command (I)nit and in this way we initialize the putted parameters in the distant station.
put NODE 0 O.K. put NODE 1 O.K. put NODE 2 O.K. put NODE 3 O.K. put NODE 4 O.K. 690F1233h>
It could happend at bed connection or heavy radio traffic, that
the acknowledgement get, write or
put doesn’t come. We repeat the command in this case. We
return by command
!l Enter
in the local station, refill the local routing table to the state
Local retab. No 1 33 to:00 34 to:00 >>
and by command
!h34 Enter
examine the new connection:
u S00 690F1230 R01 30/ 68 690F1200 R01 31/ 68 690F1233 serd serd 690F1233 R01 30/ 69 690F1200 R01 29/ 65 690F1230 u S00 690F1233h>
The connection through more CU is presented in the chapter Routing examples 3.