2 HARDWARE CONNECTIONS HEADING The loop tester hardware requires a free serial port on the PC, either internal or via a USB extension, a mains power supply and a direct connection to the device loop. It need only be connected to one end of the loop, effectively making it a spur.
PUBLIC ACCESS LEVEL 1 4 LOOP DEVICES Before devices on the loop can be interfaced with, they need to be addressed and learned by the loop tester. If the loop being tested is already commissioned, using the existing device addresses is advisable under normal circumstances.
4 LOOP DEVICES HEADING 4.2 Soft addressing Soft addressing will assign a new, and potentially different, address to every device found on the loop. This does mean that once testing is complete, the loop will have to be commissioned again by the panel it is to be connected to.
SILENCE ALARMS 5 DEVICE STATUSES 5.1 Device icons The “Devices” pane will show all known devices on the loop. If a device is missing it most likely indicates a problem with the physical connections in the loop. This will need to be resolved before any interaction with the missing devices will be possible.
5 DEVICE STATUSES HEADING 5.1.3 Test LED The test LED of any device can be enabled or disabled from this pane. Right click on the device icon and select “Toggle test LED”. Also, on small loops, options for turning the test LED on for all devices is available from the “Settings and Commands”...
5 DEVICE STATUSES 5.2.1 Device classes 5.2.1.1 Analogue Devices that fall into this category have their value interpreted according to ranges for OK, Pre- alarm and Alarm. The boundaries for these ranges can be changed. Any value that is outside these ranges will be interpreted as a fault.
6 REPORTS Two flavours of log are available depending on what details you need. 6.1 History log This log shows all the history of events that have taken place on the loop since the application was started (or the log was manually cleared.) It is possible to only select certain event types to reduce report size and improve readability.
7 LOOP DATA BASES 7.1 What is a loop database? A loop database is the computer record of what devices are connected to the loop. This database can be used to compare what has been found by the loop tester to what is believed should be there according to the system installation.
7 LOOP DATA BASES 7.4 Using loop data Once loop data has be loaded and a loop selected the data can be used for a variety of things. Retrieving a list of devices from the loop tester hardware using either pre-addressed search or by soft addressing does not alter the loop data nor does it change the loop selection.
7 LOOP DATA BASES 7.5 Saving loop data It is also possible to create a loop database (suitable for loading into Site Installer) directly from Loop Tester. Once a list of devices has been retrieved and verified to be correct, you can select “Save to Site Installer”...
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