replacement of TER-GX104K with TER-GX110S

  • Q: Type of module? A:TER-GX110S
    Q: Firmware version? A: 07.02.504
    Q: Type of starter kit you have? none
    (S1, S1B, S2, S3, S4, EVK1, EVK2, none, other)

    For GPRS data transmission I attached successfully the TER-GX104K modem to the serial port of a ControLord Gigalog S controller board. Without any soft- or hardware change, I replaced the TER-GX104K by the more recent TER-GX110S. Unfortunately, it does not work. The GX110S does not understand the commands issued by the controller. It looks like a problem of RS232 signal level. Is it possible to turn a GX110S into a GX104K by changing the firmware ? I do not use the Python facility.

  • Unfortunately, my two TER-GX104K, purchased April 2009, are installed in remote equipment. If necessary I may obtain the info. For the TER-GX110S they are as follows:







    Thank you

  • For analysis it is needed to have the information from both terminals.


    Is it possible to turn a GX110S into a GX104K by changing the firmware ?

    yes it is, but I can not recommend it! It's better to find the reason for the behaviour.
    How can you sure about this? You don't have both terminals available at this moment?

  • I will try to get the GX104K info.

    You are right that I do not have both terminals anymore. But as I said in my first post, I developed the interface with the GX104K and built two successful systems that are presently collecting data somewhere. On these systems, and during the development phase I was unable to get a response from both GX110S (I have got four of them sofar).

    If otherwise the hardware of both terminals is identical, I don't mind changing the firmware.

  • Quote

    If otherwise the hardware of both terminals is identical

    It should be, In both are GM862 modules. The TER-GX104 is just an older terminal adapter compare to the TER-GX110

  • I got the required info about one of our TER-GX104K:

    at+cgmr : 07.02.604
    at+cgmm : GM862-QUAD
    at+cgsn : 358279006096711

    Contrarily to the older ones, two newly purchased TER-GX110S work fine:

    at+cgmr: 07.03.501
    at+cgmm: GM862-QUAD-PY
    at+cgsn: 357466030342812