How do you wire a Honeywell L5200 alarm control panel?

Although the Honeywell L5200 LYNX Touch is a "wireless" self-contained alarm system, the unit does require wiring for power, phone line monitoring, a single hardwired zone and the trigger output. First and foremost, every L5200 requires a power connection from the included AC transformer which sends the panel +9VDC. You can utilize your own custom 2-wire cabling or purchase the LT cable with is a prefabricated 8 foot cable with a male DC plug that connects to the panel and two spade connectors that land on the transformer screw terminals. 

The LT cable makes hard reboots much easier since it is a single connection and rules out any potential short circuit when the transformer is still plugged in. If you plan to use custom cabling be sure to choose the proper gauge based on the distance of the run shown in the diagram on page 9 of the L5200 Installation and Setup Guide. Besides the wired power connection, you may want to hardwire a single zone to your L5200. 

There is a strip of screw terminals just left of the female DC power port and right of the battery connection point. This strip is where you will land your wired zone. There is an included resistor that ships with the L5200. It is important to land this resistor in series. Simply land your negative on the "GND" terminal between "HWZ" and "TRG." Then crimp the resistor to the end of your positive wire using a dolphin connector. You can do this on "end of line" if you wish to supervise the line. If you do not care for supervision it is generally easier to connect the resistor at the panel. After one side of the resistor is connected to positive wire of your wired zone, simply land it on the "HWZ" terminal and tighten down your screws. The hardwired zone is mapped to Zone 1 in panel programming which you will need the installer code to access. Default installer is 4112. Most people now use IP and cellular-based communicators now but if you do plan on making a phone connection to the panel you will want to land the tip and ring to the incoming phone terminals. 

On page 9 of the L5200 Install guide linked above, you will find the pin-out assignments which depict the incoming phone line landing on the far left terminals. There is no polarity with phone lines so it does not matter which wire goes to which terminal as long as they are on the far left two terminals on the upper left connection block. The only other potential wired connection on the L5200 is the wired trigger output. 

By landing a 2 wire connection to the "TRG" and "GND" terminal shared with the "HWZ" you can connect a wired alarm siren. Connecting a wired siren with a LYNX Touch panel does involve a few working parts. You will need to run the trigger output from the panel to a wired relay, such as the Altronix ultra-sensitive RBSNTTL relay. When triggered from the trigger output, the relay will draw power from a transformer that feeds a power supply. We have created a convenient kit called the LYNX-WEXT external siren kit. This kit combines everything you will need except the siren of your choice. If you are looking for a wireless solution we also have the LYNX-EXT wireless external siren kit. 

These are the only wired connections that can be made with the L5200 LYNX Touch. Everything is wireless! The panel supports up to 64 wireless zones/sensors. 

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No, there isn't any alternate transformer that we offer for the system.
The resistor is for the one available hardwired zone input. You shouldn't be wiring the resistor with your power connections.
Can someone share a mobile picture of the wiring for power with the resistor please?
Yes, thanks for the note. You certainly cannot use an older non LYNX Touch model transformer on any LYNX Touch system.
Just as an FYI the older Lynx systems used 9Vac transformers, the L5100 and L5200 use 9Vdc. People upgrading from a LynxR or other older style systems might be tempted to re-use the old transformer thinking it is the same, it is definitely not compatible.
I would not suggest using Cat-4. The panel uses a DC transformer and you have to be very careful with wire gauge and wire length. From the guide it says to use #22 gauge for up to 11' fee run, #20 gauge for up to 20' run and #18 gauge for up to 26'.
can I use a CAt4 cable and hardwire the system via nearby power outlet; using the 9vdc and ground internal terminals?

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