Guides for installers: connecting and setting up CORTEX transmitters

Practical guides for installers and monitoring centre technicians: connecting to alarm panels, checking the link, updating firmware. Based on official CORTEX manuals.

How to connect the RT4-5GP/4 transmitter to a Paradox panelA step-by-step guide for installers: which mode to use with Paradox MG, SP, E, Esprit and Digiplex EVO panels, how to wire and program the RT4-5GP/4 GSM/LTE transmitter and how to check the link to the monitoring centre.
Checking a GSM transmitter: LEDs and SMS commands 99.C1–99.C4How to use the LEDs and short SMS commands to see whether an RT4-5GP/4 transmitter has network coverage, enough signal, a link to the monitoring centre and which firmware it runs.
Updating CORTEX GSM transmitter firmware: via USB, by command and automaticallyHow to update CORTEX transmitter firmware: the RT4-5GP/4 via USB, automatically or by command, and modules with versions 32xx and 34xx on many sites at once through TLF_Serv. Plus the main rule: never cut the power while an update is running.