Ndtp V6 Protocol (0x7E 0x7E navdata)
Ndtp V6 on TCP 5243: 0x7E 0x7E signature, conn request 100 binds id, navdata type 0 plots.
On Traxelio
What NDTPV6 trackers do once they are on Traxelio
Point this protocol at Traxelio
Point NDTPV6 at Traxelio
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1
Capture an Ndtp V6 fingerprint
Confirm a TCP record that starts with 0x7E 0x7E and carries an NPH body.
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2
Point Ndtp V6 at 5243
Configure only Ndtp V6 to TCP 5243. Ndtp V6 on 5243 is not Noran on 5053 or Granit on 5113.
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3
Complete the connection request
Finish service 0 type 100 with the 16-bit device id on 5243 before expecting map points.
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4
Prove one Ndtp V6 fix
Send one service 1 item type 0 record with flag bit 7 set on 5243 and verify a map point.
Still offline after GPS lock
NDTPV6 still not landing
- Ndtp V6 aimed at the wrong port
Ndtp V6 on 5243 is not Noran 0x0008 on 5053 or Granit +RRCB~ on 5113.
- Connection ACK, empty map
Service 0 type 100 binds the 16-bit device id and is stored as not valid. Wait for service 1 item type 0.
- Navdata arrives, empty map
Flag bit 7 must be set. A type 0 block with that bit off will not plot.
FAQ
NDTPV6 leftover questions
Does Ndtp V6 send Concox 0x7878 frames?
No. Ndtp V6 starts with 0x7E 0x7E and then an NPH body. Concox families use 0x7878 binary login.
What does an Ndtp V6 connection request do?
Service 0 type 100 binds the 16-bit device id and is answered with result OK. That record is not a map point.
Why does an Ndtp V6 session exist without a map fix?
The connection request is stored as not valid and reuses last location. A later service 1 item type 0 record with flag bit 7 is required.
How are Ndtp V6 coordinates stored?
Longitude comes first, then latitude. Each is a signed 32-bit little-endian value divided by 10,000,000. Valid is flag bit 7.
Can an Ndtp V6 unit run SMS setup or a controlled-action flow?
This dialect is positions only. Granit-Navigator is the listed device. There is no SMS family on this row.