TMG Protocol ($xxx three-letter CSV)
TMG on TCP 5132: $ then three letters then IMEI; status above 0 plots; $rmv is power cut; no ACK.
On Traxelio
What TMG trackers do once they are on Traxelio
Hardware that speaks this protocol
Devices that speak TMG
Point this protocol at Traxelio
Point TMG at Traxelio
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1
Capture a TMG fingerprint
Confirm a line that opens $ then three lowercase letters then a comma then the IMEI. Reject $MGV and 0x7878.
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2
Point TMG at 5132
Configure only TMG to TCP 5132. TMG on 5132 is not TLV on 5146 or Megastek on 5024.
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3
Do not wait for an ACK
TMG has no reply byte. A parsed $ line whose status is greater than 0 is enough.
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4
Prove one TMG fix
Send one $rmv or $ion line whose status digit is greater than 0 on 5132 and verify a map point.
Still offline after GPS lock
TMG still not landing
- TMG aimed at the wrong port
TMG on 5132 is not TLV type 0E on 5146 or Megastek $MGV on 5024.
- Session up, empty map
Status must be greater than 0. A 0 status binds the IMEI and will not plot.
- No ACK, assumed dead
This dialect has no reply byte. Check the map, not the socket for an ACK.
FAQ
TMG leftover questions
Does TMG send Concox 0x7878 frames?
No. TMG opens with $ then three lowercase letters then a comma then the IMEI. Concox families use 0x7878 binary login.
Which TMG status plots a map point?
A status digit greater than 0. Status 0 is void and will not plot.
Does TMG send an ACK?
No. There is no reply byte. A parsed $ line is the whole handshake.
What does a TMG $rmv line mean?
Power cut. $ebl is low power. $ibl is low battery. $tmp, $smt, and $btt are tamper. $ion is ignition on. $iof is ignition off.
Can a TMG unit run SMS setup or a controlled-action flow?
This dialect is positions only. Two units are listed: TMG188 and TrackMiGaddi. There is no SMS family on this row.