Connect the station with USB to the PC 

Put the jumper to pin J1


Open terminal program (TeraTerm or PI Service Terminal) and set COM Port


then you will see the menu 


========================================================================================

USER: \ MAIN MENU
========================================================================================

(1) SYSTEM
(2) SENSORS
(3) MODEM SETTINGS

01/04/2019 10:59:01 >> Select...



Select (3) MODEM SETTINGS


The modem starts, it may take a few minutes 


========================================================================================
USER: \ MAIN MENU \ MODEM SETTINGS
========================================================================================

(1) GET MODEM INFO
(2) SEND IDENTIFICATION SMS
(3) UNLOCK SIM CARD (PIN CODE)
(4) SIGNAL QUALITY GRAPH
(5) APN OF CUSTOMER
(7) DELETE ALL SMS
(ESC) BACK


Select item (5) APN of Customer 



========================================================================================
USER: \ MAIN MENU \ MODEM SETTINGS \ APN OF CUSTOMER
========================================================================================

CURRENT APN ACCESS DEFINED BY USER:
-----------------------------------

-- There is not defined APN by user --

CHOOSE THE ACTION:
------------------
(I) INSERT NEW APN ACCESS
(D) DELETE DEFINED USER APN
(ESC) BACK


Then select (I) INSERT NEW APN ACCESS 

An fill in you new APN Settings (MCC, MNC, APN access, APN user name and APN password)

Then press (ENTER)

========================================================================================
USER: \ MAIN MENU \ MODEM SETTINGS \ APN OF CUSTOMER \ INSERT NEW APN ACCESS
========================================================================================

SIM CARD INFO:
--------------
MCC of inserted SIM: 295
MNC of inserted SIM: 05

--------------------------------------------------------------------------------
Define items of APN access according instructions!

(Enter) <- confirm APN
(Esc) <- cancel & exit from this menu item ( without save )
--------------------------------------------------------------------------------

CREATE NEW APN:
---------------

Write new country name: SIM Country
Write new MCC: SIM MCC
Write new MNC: SIM MNC"
Write new APN access: SIM APN
Write new APN user name: SIM USERNAME
Write new APN password: SIM PW

-- New APN saved in system --

========================================================================================
USER: \ MAIN MENU \ MODEM SETTINGS \ APN OF CUSTOMER
========================================================================================

CURRENT APN ACCESS DEFINED BY USER:
-----------------------------------
User APN Country: "SIM Country "
User APN MCC: "SIM MCC"
User APN MNC: "SIM MNC"
User APN Account: "SIM APN"
User APN Name: " SIM USERNAME"
User APN Password: " SIM PW"



APN is now stored in the station.
If you press the Connect button, the station will transmit with your new settings.