The TXTOUCH unit is exhibiting “ error 0” and is not dialing out?

There is a short between the A+ and the B- connection to the RS485;
- Check the lines;
Camera supply ( on board) is deregulating the 5V DC DC Converter. Remove the camera supply from the system and restart system, including the board. Telephone module is over loading the 5v DC DC supply:
- Replace the main board;
TXTOUCH system is not UPS power protected from the Building’s unregulated power supply;
- Change telephony board, verify if database is conserved and install a UPS;