Queclink @Track Protocol (Traccar GL200 decoder, port 5004)
Queclink @Track on TCP/UDP 5004 at gps.traxelio.com, decoded by the Traccar GL200 decoder: +RESP:GT text closed by $ or +RSP binary, 15-digit IMEI.
On Traxelio
What Queclink trackers do once they are on Traxelio
Hardware that speaks this protocol
Devices that speak Queclink
Point this protocol at Traxelio
Point Queclink at Traxelio
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1
Capture a GL200 fingerprint
Confirm +RESP:GT or +ACK:GT closed by $, or a +RSP binary report. Reject a 5003-only capture as GL100.
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2
Point GL200 at 5004
Configure only GL200 to TCP or UDP 5004. GL200 on 5004 is not GL100 on 5003 or GL601 on 5257.
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3
Bind the 15-digit IMEI
The IMEI follows the protocol version in the comma CSV. A heartbeat +ACK:GTHBD is answered +SACK:GTHBD.
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4
Prove one GL200 fix
Send one FRI-class record with filled lon, lat, and yyyyMMddHHmmss on 5004 and verify a map point.
Still offline after GPS lock
Queclink still not landing
- GL200 aimed at the wrong port
GL200 on 5004 is not GL100 on 5003 or GL601 on 5257.
- Session up, empty map
Lon, lat, and yyyyMMddHHmmss must be filled. Empty coordinate fields reuse the last fix and will not plot a new point.
- No reply on a FRI report, assumed dead
Only +ACK:GTHBD is answered +SACK:GTHBD. A parsed +RESP:GTFRI is enough to plot.
FAQ
Queclink leftover questions
Does GL200 send Concox 0x7878 frames?
No. GL200 sends +RESP:GT text closed by $ or a +RSP binary report. Concox families use 0x7878 binary login.
What marks a GL200 heartbeat?
+ACK:GTHBD is answered +SACK:GTHBD. Other reports do not need a reply to plot.
Which GL200 fields plot a new fix?
HDOP, speed, course, altitude, then longitude, latitude, and yyyyMMddHHmmss. Empty lon/lat fields reuse the last fix.
Does a GL200 text report end on a dollar sign?
Yes. Text reports close on $ (or a NUL). Binary reports use a +RSP, +INF, or +EVT head.
Can a GL200 unit run SMS setup or a controlled-action flow?
This dialect is positions only. GL200, GL300, and GV300 class units are listed. There is no SMS family on this row.