S168 Protocol (GDATA CELL WIFI STATUS)
S168 on TCP 5204: hash fields closed by $, GDATA A/V plus yyMMddHHmmss lat/lon, optional CELL WIFI STATUS.
On Traxelio
What S168 trackers do once they are on Traxelio
Point this protocol at Traxelio
Point S168 at Traxelio
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1
Capture an S168 fingerprint
Confirm a hash line closed by $ whose field 5 carries GDATA: A/V plus lat/lon.
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2
Point S168 at 5204
Configure only S168 to TCP 5204. S168 on 5204 is not RST on 5196 or Sabertek on 5166.
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3
Do not wait for an ACK
S168 has no reply byte. A parsed GDATA: A line is enough.
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4
Prove one S168 fix
Send one GDATA: fragment whose first letter is A on 5204 and verify a map point.
Still offline after GPS lock
S168 still not landing
- S168 aimed at the wrong port
S168 on 5204 is not RST on 5196 or Sabertek on 5166.
- CELL or WIFI arrived, empty map
CELL and WIFI reuse the last point. A new map point needs GDATA: with A.
- GDATA sent, empty map
GDATA first letter must be A. V is void and will not plot as a valid fix.
FAQ
S168 leftover questions
Does S168 send Concox 0x7878 frames?
No. S168 is a hash line with GDATA, CELL, WIFI, and STATUS fragments. Concox families use 0x7878 binary login.
Which S168 GDATA letter is a valid fix?
A is valid. V is void and will not plot as a valid fix.
Does an S168 CELL or WIFI fragment invent a new point?
No. Without GDATA those fragments reuse the last known point.
What does an S168 STATUS fragment carry?
Battery percent, then RSSI.
Can an S168 unit run SMS setup or a controlled-action flow?
This dialect is positions only. There is no SMS family on this row.