Configuring a Verify DP Heading input on PORT3 Configuring a Verify DP Heading input through USB For LD2 What is the expected latency from one PPS to the ZDA telegram? Guia rápido do LD2 da VERIPOS (LD2 Quick Guide - Brazilian Portuguese) How can I change the IP address of my LD2(S) when using Verify-DP? How can I determine what L-band firmware versions are installed on the LD2/LD2S? How do I check the GLONASS option on my Topcon GNSS Receiver in an LD2 IMU? How do I check the L-band reception status of my LD2/LD2S demodulator? How do I check version number of my LD2? How do I configure a Position Output on port P1 of my LD2/LD2S? How do I configure my LD2 (Topcon GPS card) to output a ZDA and 1PPS string from Port 1 of the LD2? How do I configure my LD2 to use the Apex service? How do I manually select MF Stations on my LD2 IMU? How do I Remove Standard+ Service in my LD2/LD2S? How do I select MF or HF Auto Frequency on my LD2? How do I upgrade the GLONASS option on my Topcon GNSS Receiver? I have just changed beams and my station list is not fully populated why is this? LD2 DP Bridge Card LD2 Installation Manual LD2 Operations Manual LD2 Quick Guide LD2 Setup - Configuring PPS & ZDA Output from Topcon GPS Card Selecting An LD2 L-band Beam What are the tracking capabilities of my LD2 and what services are available to my unit? What data is available on the LD2 Ethernet port? What do the status LED's on the front panel of the LD2 show? What is demodulator Channel 16 used for and how I configure it? What NMEA telegrams are available for output from the LD2/LD2S?

What data is available on the LD2 Ethernet port?

Various messages are output on the LD2 Ethernet port and may be received by any PC with an Ethernet connection.

Note: The HF/MF correction data is only output from the Ethernet port, it is not available from any of the RS232 ports.

The available messages are:

  • Port 4992 - Raw GPS
  • Port 4993 – L-band RTCM Corrections
  • Port 5994 – MF RTCM Corrections
  • Port 8003 – HF RTCM Corrections
  • Port 9013 – NMEA Out Port A
  • Port 9015 – NMEA Out Port B

The ports indicated above refer to TCP/IP ports.

Note: The Raw GPS output is only available on Ethernet port 4992 when the LD2 serial ports are configured as follows:
Port P1 must be set to “LOCAL”
Port P5 must be set to “OFF”

If it is necessary to change either of these settings, it is necessary to reboot the processor before the changes take effect.
This is accomplished by turning off the power to the unit for one minute.

The factory default Ethernet settings are:
IP: 192.168.150.249
Mask: 255.255.255.0

It is possible to change the LD2 IP address if the “Verify DP Display” Service is temporarily enabled and an external keyboard and VGA display are connected to the LD2. This procedure is described here.


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