The 'modem not responding' error will be displayed if:
- the software needs to be updated. Please download the latest software update package here - https://productsupport.em-trak.com/hc/en-gb/articles/28856175410973-PCN-63-A200-Software-update-Impaired-Radio
-
the unused ports need to be terminated (this only applies if you're using the 14-way or 18-way cables). The ports can be terminated by adding 120 ohm resistors between the RXA and RXB wires, as per the recommendation in the user manual, or by installing the optional junction box.
If the error is not resolved by following the above, please contact us at support@em-trak.com