CAST XFP 32 ZONE ANALOGUE ADDRESSABLE FIRE ALARM PANEL
ENGINEERING MANUAL • Approved Document No. DFU5010020 Rev 4 • Page 44 of 48
LOOP TEST
This function helps pinpoint loop wiring/communication faults by continually polling all loop devices
for a specified number of times and reporting back both good and bad polls.
Enter AL3 (4444) > Engineer Functions > Loop Test.
When selected, press the Accept
4
button, enter the loop (1 or 2) you want to monitor and enter how
many times you want the panel to poll each loop device, for example 5 times, as shown below:
Press the Accept
4
button, the test will begin and a test status window will appear, showing the address
currently being polled together with a running total of the number of good and bad polls.
The test will continuously scroll through the loop devices.
To halt this function press the Escape
3
button.
The test results will appear in a window similar to the one below.
Use the
5
and
6
buttons to scroll through the polling results for the loop devices.
Test Loop : 1
Number of Polls for each device : 5
Loop:1 Device:1
Good Polls:128 Bad Polls:3
A high number of bad polls in a particular section of the system indicates a problem area for
investigation, e.g. voltage drop, poor connection, etc.
To assert the LED output of the device being viewed, press the More Information button. You will be
presented with a window similar to the one below:
Press the Accept
4
button to activate the LED of the selected device. Once activated, you will be given
the option to turn off the device LED by pressing the Accept
4
button again.
Press the Escape
3
button to exit the function.
Loop:1 Device: 1
Turn ON device LED?
