Svias Protocol ([...] ACK @)
Svias on TCP 5168: [ four-digit versions, IMEI, degree-minute lat/lon ]; reply is a single @ byte.
On Traxelio
What Svias trackers do once they are on Traxelio
Point this protocol at Traxelio
Point Svias at Traxelio
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1
Capture a Svias fingerprint
Confirm a line that opens with [ and closes on ]. Reject $1,D001 as STL 060.
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2
Point Svias at 5168
Configure only Svias to TCP 5168. Svias on 5168 is not STL 060 on 5060 or Sabertek on 5166.
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3
Wait for the @ ACK
A known unit is answered with a single @ byte.
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4
Prove one Svias fix
Send one envelope whose output bit 0 is set on 5168 and verify a map point.
Still offline after GPS lock
Svias still not landing
- Svias aimed at the wrong host path
Svias on 5168 is not STL 060 on 5060 or Sabertek on 5166.
- Session up, empty map
Output bit 0 must be set. Without it the IMEI can bind and the map stays empty.
- @ ACK seen, still no point
The @ reply only proves the socket. A valid fix still needs output bit 0 plus lat/lon.
FAQ
Svias leftover questions
Does Svias send $1,D001 lines?
No. Svias opens with [ and closes on ]. STL 060 starts at $1, then IMEI, then D001.
What byte does Svias reply?
A single @. That byte is the whole handshake.
Which bit marks a valid Svias fix?
Output bit 0 must be set. Without it the fix is marked invalid and will not plot.
Where is the Svias IMEI?
After two 4-digit version fields and the index, before the hour-meter.
What is input bit 0 on Svias?
SOS. Input bit 4 is ignition.