The FLM-325-2i4 is a Single address Dual Input Analog Addressable Module with two inputs used to monitor Normally Open (NO) or Normally Closed (NC) circuits. If the module is addressed as 010 the First input will display as 010.1 on the panel keypad display, the Second input will display as 010.2 on the panel keypad display.
What does it mean when the panel displays a trouble of "Dialer Answering Unknown"?
"Dialer Answering Unknown" is caused by the panel answering an incoming phone call. This will cause a trouble tone from the panel that will clear itself when the panel releases the line, this may take up to 10 minutes. If another event (Alarm, Trouble, Supervisory) occurs during this time, the panel will drop the line and dial out to the central station.
To prevent or stop this set the Line 1 Ring Count to (0).
The FLM-7024-ISO MUX bus isolator module is placed between devices on the MUX bus. A short on the bus causes activation of the isolators adjacent to either side of the short. This effectively separates all devices between the activated isolators from the rest of the bus. This prevents failure of the entire bus. When the short condition is removed, the isolators automatically restore the entire loop to normal operation.