User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher
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32
Configuration - PSTN
If the port type is set to PSTN, selecting the Configure button will display the following window. Note: the
first 4 parameters also apply to GPRS modems.
Figure: Default PSTN Configuration Window showing Initialisation String for an External Modem or GSM.
Dial Retries: The number of times that the RTU will attempt to re-dial the target RTU. The time waited
before performing the next dialing attempt changes according to the dialing attempt number. After the first
dialing attempt, the RTU will wait 30 seconds and then dial again. The RTU then increments the wait time by
1 minute between subsequent dialing attempts.
After RTU Waits:
1st Dial 30 seconds
2nd Dial 1 minute 30 seconds
3rd Dial 2 minutes 30 seconds
4th Dial 3 minutes 30 seconds etc
Dial Timeout (seconds): The time from when dialing begins that is waited to get carrier detect (carrier
detect occurs a short time after the receiving modem has answered). When dialing a GSM, the Dial Timeout
should be set to at least 45 seconds.
Automatically Hanging Up
An RTU can be configured to automatically hang up after a certain amount of time has elapsed from sending
the last message or from receiving the last message. There are two parameters used to specify these times
and the parameter that is used is dependent on whether the last message was transmitted or received. If the
last message was transmitted, the RTU will wait for Hang Up After seconds and then hang up. If the last
message was received, the RTU will wait for On Line Inactivity seconds and then hang up.
On Line Inactivity (seconds): (0-32767) The RTU will hang up after this amount of time has elapsed since
the last message received. A value of 0 disables the function.
Hang Up After (seconds): (0-32767) The RTU will hang up after this amount of time has elapsed after
connection or after sending the last message. A value of 0 disables this function.