Envisalink - TPI Documentation

[lonewolf]

With only SSH access,

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tcpdump -p -n -i <interface> -X -s0 -w capturefile.pcap host <ip address>

is my go-to, and then just scp/rsync the capturefile.pcap file to your computer and open in Wireshark.

Yeah, it's almost certainly the re-use of the source port which is causing it. Since the EVL never dropped the connection, seeing a SYN on what it considers an already established connection is confusing it. I don't think this is specific to the EVL/TPI, I'd expect a hung connection as a possibility on any TCP server this happens to.

[cmh31909]

Have there been any updated documents released? The only one's I can find are in this thread which is dated 2012, seven years old.

[lonewolf]

Have there been any updated documents released? The only one's I can find are in this thread which is dated 2012, seven years old.

? Both of the PDFs in the first post of this thread are dated 2017-02-10.

[nick211]

I was busy creating a Visual Basic application to implement the TPI when I came across command 912 on page 8 of the TPI PDF. According to the document, the command returns 1 data byte. I assume this is a typo. Also, the descriptive text is exactly the same as command 900 which is not very helpful in determining what command 912 does different compared to 900.

Did you ever end up figuring out what the 912 command is actually for? The title says 'Command Output Pressed', but the description makes it sound like you need to send an access code after receiving the 912 command.

[lonewolf]

I was busy creating a Visual Basic application to implement the TPI when I came across command 912 on page 8 of the TPI PDF. According to the document, the command returns 1 data byte. I assume this is a typo. Also, the descriptive text is exactly the same as command 900 which is not very helpful in determining what command 912 does different compared to 900.

Did you ever end up figuring out what the 912 command is actually for? The title says 'Command Output Pressed', but the description makes it sound like you need to send an access code after receiving the 912 command.

My assumption is it reports when someone does a *7x command function on a keypad. The panel manual says

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[*][7][x]         Command Functions 1 – 4

The description text for 912 is just a copy/paste error from 900.

[nick211]

The description text for 912 is just a copy/paste error from 900.

It does look like a copy paste error to me too. Can we get official confirmation on this one. The developer of the Home Assistant add-on has programmed it so that Envisalink is requesting a user code after receiving a 912 command. If this is actually not the case we should clarify this. https://github.com/ufodone/envisalink_n ... 2153942823

[GrandWizard]

I have received the updated document and posted 1.09 version of the TPI.

It includes the 912 clarification as well as a new command for sensor low-bats.