What Does an ECP Error Mean on a Honeywell Tuxedo Touch?

ECP error on a Tuxedo Touch is the keypad's way of saying, "I'm not being told what to display, so I'm displaying ECP error." This can happen due to addressing issues, wiring issues or because of a problem with either the Tuxedo or the panel itself. To troubleshoot, follow these steps:

1. Verify proper support and addressing. Not all panels will support a Tuxedo Touch keypad. Panels that do support it will require that the Tux be set to an appropriate address and enabled through panel programming. Each device that connects to the panel's keypad bus will need to have a unique address. A keypad that has been set to an incorrect address, or set to an address that has not been enabled in programming, will display an ECP Error. Having two separate devices set to the same address may also cause an ECP Error.
   When a Tuxedo keypad is not communicating with the alarm panel, it uses the default Installer Code of 4140. When checking the address, you will need to use this code rather than the alarm panel's Installer Code.
2. Verify proper wiring, as well as power. Tuxedo Touch keypads connect to the panel's keypad bus. However, they are power-hungry devices by comparison with a regular, non-touchscreen keypad, drawing up to 260 mA of current. For this reason, they often require separate, supplementary power. Wire as shown in the image below, and when supplementary power is used, make sure to always include a common ground between the power supply and the alarm panel.
   
   
   
   It is also important to observe wire run-length restrictions, which are based on wire gauge and the number of devices connected.
   
   

   Wire Gauge	Length
   #22 gauge	150 feet
   #20 gauge	240 feet
   #18 gauge	350 feet
   #16 gauge	550 feet

   
   If more than one Tuxedo is wired to a single run, the maximum length must be divided by the number of keypads on the run. (e.g., the maximum length is 75 feet if two Tuxedos are wired on #22 gauge wire). Alarm Grid recommends a home run wire for each Tuxedo Touch.
   
   
3. Verify whether or not this could be a device issue. This is by far the most difficult thing to determine, especially if you don't have a voltmeter. Generally, if any device is operating properly on the keypad bus, you can rule out a panel issue. Once that has been ruled out, determine if the Tuxedo Touch is the issue by verifying that a proper address is enabled as an AUI on the panel that is being used. Then, remove all other devices from the keypad bus. Connect the Tuxedo Touch right at the panel using a very short 4-conductor wire. If you can, verify continuity on each of the four wires to rule out any possible breaks. Make sure that the Tuxedo Touch is set to the address that you verified as having been enabled in the panel. If you know that the panel and the wire are both good, and that the Tuxedo Touch is set to the proper address, you can reasonably assume the issue lies with the Tuxedo Touch itself, assuming that an ECP Error is still being displayed.
   
   The video below illustrates how to install a Tuxedo Touch WIFI:
   
   Honeywell Tuxedo Touch WIFI: Installation