Honeywell 4219

8 Zone Wired Expansion Module

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The Honeywell 4219 is a wired zone expansion module that provides up to (8) additional hardwired zones of protection for a Honeywell VISTA-15P, VISTA-20P or VISTA-21iP alarm panel. The module is used when a system runs out of terminals to support new sensors. Buy the 4219 expander here.
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The Honeywell 4219 is a wired zone expansion module that provides up to (8) additional hardwired zones of protection for a Honeywell VISTA-15P, VISTA-20P or VISTA-21iP alarm control panel. The 4219 zone expansion module is ideal for existing security systems when you need to add additional hardwired alarm devices but have no more available zones.

The hardwired zones provided from the Honeywell 4219 can be supervised by end-of-line resistors (EOLR), or they can use Normally Closed (NC) wiring.* The 4219 has configurable Dip Switches for selecting the wiring options. The 1K or 2K ohm resistors needed for each EOLR zone are included with the 4219.* When connecting your zones to the Honeywell 4219, you may need to terminate each programmed zone with a resistor depending on the dip switch setting selected. If you do not program all of the (8) available zones, then you do not need to add resistors to the unused zones.

When installing the 4219 wired expansion module, you can mount it remotely in the included white plastic enclosure or you can mount it inside your alarm control panel’s existing cabinet as long as there is adequate room. You should mount the zone expansion module before making any connections or powering up the device. When mounting remotely inside the plastic enclosure, you may position the 4219 vertically or horizontally. There is an exit hole for the wiring connection on the side of the plastic enclosure and there is a breakout tab on the back of the enclosure as well. The plastic enclosure also has a built-in tamper feature. To utilize the tamper feature, you must install the included tamper magnet to the cover of the enclosure and set the 4219’s DIP switch 8 to the off position. When the enclosure is closed, the magnet will be in proximity to the internal reed switch built into the circuit board of the Honeywell 4219. If the cover is removed, the magnet will move away from the reed switch and a tamper alarm will be activated.

If you want to mount the Honeywell 4219 inside your existing alarm control panel’s metal cabinet, you should mount it horizontally below the alarm control panel. Position the included self-tapping screws in the raised tabs at the back of the alarm cabinet. With the screws inserted, you will be able to hang the module on the screw heads using the (2) holes on the back of the plastic enclosure. Make sure to set DIP switch 8 to the on position so that the case tamper feature is disabled and do not install the cover.

Once you have mounted the 4219 wired zone expansion module, you will need to connect it to your alarm control panel. You can use the TB2 terminal block that has (4) screw terminals or the (4) pin harness plug above the terminal block for the connection as they are electrically the same. When using the TB2 terminal block, you should use 22AWG wire with (4) conductors. The green wire should be connected to terminal 4 on the 4219 and the data out terminal of the the alarm control panel. The black wire should be connected to terminal 3 on the 4219 and the ground terminal of the alarm control panel. The red wire connects terminal 2 of the 4219 to the 12VDC terminal of the alarm control panel. Finally, the yellow (or white) wire connects terminal 1 of the zone expander to data out on the panel. The (4) terminals on the alarm control panel that you will be connecting to are known as the ECP connection or the keypad bus and are also used by Honeywell alarm keypads. Therefore, you will have at least one wire under each of these terminals in addition to the wires for the 4219 zone expansion module.

Once the Honeywell zone expansion module is mounted and connected to your alarm control panel, you will need to position the DIP switches on the circuit board of the 4219. DIP switch 1 determines the response time of zone A which is the zone connected to terminals 1 and 2 of the TB1 terminal block. With DIP switch 1 on, normal response time of 300mSec will be used. With DIP switch 1 off, zone A will have a fast response time of 10mSec. The rest of the zones (A-H) use the normal response time of 300mSec. DIP switches 2-6 will determine which device address is used for the 4219. You can assign a device address of 0-31, but be sure to use a device address that is supported by the connected alarm control panel. The VISTA-15P/20P/21iP alarm control panels all support addresses 7-11. Once the 4219 is connected and the device address DIP switches are set, the additional (8) hardwired zones will automatically become available within the security system’s zone programming menus. DIP switch 7 is not used and should be left in the on position.*

Please note that some hardwired carbon monoxide detectors are not compatible with the Honeywell 4219 wired zone expansion module. We recommend installing all hardwired carbon monoxide detectors using the on-board zones of the alarm control panel instead of the expansion zones.

*Original 4219 modules had 5 dip switches, used 1k resistors, and did not offer an option to disable the use of EOL resistors. In 2011, the board was reworked. These modules had 8 dip switches, used 2k resistors, but the EOL resistors were still required, not optional (dip switch 7 must remain ON). In 2014, the board was reworked again. In the newest version, dip switch 7 allows you to set all zones as normally closed, with no resistor (dip switch 7 ON) or to require the 2k end-of-line resistor for all zones (dip switch 7 OFF). Alarm Grid has posted all three versions of the Install Guide for the 4219, in support of customers who may still have older devices in use.

Brand: Honeywell

Hello Johan, Actually the 6164 alpha keypad has 4 internal zones that can be used as panel zones. It will emulate a 4219 hardwired zone expander. What this also means is you will loose 4 zones with each 6164 setup since each 4219 is preset to use 8 zones. If you would like to discuss this setup further, you could email us at Also we can look into any monitoring options available. Our plans begin at $10/mo and include remote programming (depending on the new panel you go with,) which could be a big help in the setup process.
Trying to replace a Bosch 2212 security system where each keypad had 1-4 zones attached locally to the keypad. Any modern systems with expansion zones built into the keypads? It doesn't look like this expansion is small enough to fit inside the wall, so I'd have to mount a keypad ontop of it.
Hello, I have a 4219 that has worked flawlessly for 6 years. Now, out of the blue, I get the "Fault 108 expansion" error. When I opened the white case, the 8 dip is off. However, there is no magnet attached to the cover, and the entire housing is a bit loose off of the drywall. Nothing else has changed. Any thoughts? Thanks.
Cuál es el dip switch del 24 al 32 en el expansor 4219 gracias
Can you piggyback the power and bus wires from one 4219 expansion modules to the other along with a 5883H module instead of having home runs for each device to terminals #4 #5 #6 and #7 on the Vista 20-Panel? Thanks
Hi Jacob, it's not something that’s currently supported by the manufacturer, therefore we can’t offer any support for it at this time.
Ok, so I have a crazy idea for my implementation of a system I'm installing, could someone let me know if it will work? I'd like to have a central Vista 21iP in our main building, but we have two separate buildings that are connected via our network. I'd like to install IOLAN serial device servers and use serial tunneling to connect the 4219s in each separate building and supply power to the 4219s individually. If I use the same pins on a serial cable on each side, would a setup like this work to expand the security system into different buildings? Thanks!
We have all our Non Contract plans here on our site ( ). Our most popular plan is the Gold plan and that gives you dual path monitoring (internet and cellular communication) so that your panel never fails when sending out a signal to our central station. It also includes Total Connect which is an application that allows you to remotely control your alarm system.
Evening Julia. It is not currently. What plans do you all offer?
We're glad to be of assistance. Is your system monitored? We offer no-contract monitoring plans.
Cheers Joe! It worked. Now just have to clear the ECP fault on my tuxedo touch...ugh! Hey at least I can help my neighbor now!
Nope, the number corresponds to the device address, not the zones. As you can see in the pic I posted, to use zones 17-24, the 4219 will need to be set to address 8.
Confused. So are the correct dip switch settings for 08 - 2,3,4,6 on & for 09 - 3,4,6 on. The sticker for the 4219 shows that for 17-24 the dip switches should be 3,4,5, on and for 25-31 4,5 on. Do the numbers not correspond to the zones?
You'll need to set the dip switches according to the device address menu for the system. Here is a pic of the device address menu. As you can see, the 4219 expansion modules use addresses 7 through 11.
Forgot to mention... first board 3,4,5 dip switches on, second board 4,5 dip switches on - 1 is also on, 7 is off, and 8 is on for both. 6160rf is on 17.
Just installed 2 of the 4219 expansion boards to my 21ip. I am getting an error saying "check wire expansion 108" then it say the same but with 109. It then rolls through listing zones 17-28 which are my wired zones after the 21ip wire connections. I have a 6160rf for programming and also a tuxedo touch. To try to resolve the error, I removed power from the expansion boards and deleted zones 17-28. Everything then worked fine. I reinstalled the 2 panels and the error returned immediately. Any thoughts?
My pleasure Gardner! Happy to help.
Cheers Frank. Figured that was what to do but the directions are a little foggy! Appreciate the clarity.
Hi Gardner, this may depend on if you have a receiver mounted at the top of the board, or if the main panel is mounted all the way at the top. If you take the 4219 board out of the white plastic case, be careful that you don't allow the back of it to touch the metal of the enclosure. This would be a good reason to use double stick foam tape (and screws too, if so desired).
The 4219s come with adhesive tape that allows you to mount the expanders inside the can under the board. If your 4219 did not ship with foam tape you can purchase it separately and use that to keep the backside of the board away from the metal can to avoid shorting anything.
Frank - do you have a picture of how they fit in the can? Instructions say to mount horizontally. The screws do not line up and/or there isn't enough screws to attach 2 boards. Do you mount them with foam tape?
This is my wiring. I currently have it as NC
Hi. I just emailed you the picture. And yes I am sure they are on nc.
Are you sure they are programmed as NC and not EOL? I don't seem to see your wiring picture. Perhaps you can email it to
Sterling. You were right. I needed to log onto my 6160 to program this and confirm zone deletion. This helped out and it is no longer showing me that error. My last issue is this. All of my zones are faulting. I have them programmed as nc because I chose not to put eol resistors in. I understand that eol resistors are typically going to offer you an incremental amount of more security, but I have chosen against it since this is a resedential home and I'm not housing a hope diamond here. This is my wiring. As you can see I did it exactly how it shows on the paper by combining the negative terminals on most of these zones. I have a feeling this has something to do with my programming of the zone. I currently have it as perimeter since I don't know what wires goes to what door yet
It's possible to have a Zone Type set for 00 but not to have the zone fully deleted. If you don't intend to have any zones on 9-16, go through each one and set it to Zone Type 00 and then make sure to say yes (selection of 1) when it asks if you if you want to delete the zone. Once you have properly deleted all zones 9-16, there shouldn't be any way for you to see have a 108 trouble.
First Thanks both of you for helping me with this. So I checked zones 9-16 and I didn't see anything programmed as hard wired I actually have them labeled as don't use. I figured this was equivalent of turning them off.
You are getting the Expansion Module error because you must have programmed a zone (or multiple zones) in the range of 9-16 and set them up as a wired input. You can only use zones 9-16 as a hardwired zones if you have a wired expansion module. Therefore, if you delete all zones 9-16, the error should clear. If you intended to use zones above zone 8 as wireless zones, you just have to change the Input Type on any zones in the range of 9-16 so they aren't programmed as a wired zone anymore.
Frank. I am not sure what you mean. I programmed zones 1-8 with the same setup as in the picture. They are auto selected as hard wired and config is NC. This is just zone 2 as an example. For instance here is zone 5 as an example. Are the settings correct? Or should I be changing some of these settings?
Your 8 zones are programmed as Input Type 2 - AW? Well that is your problem. If they are hardwired to the panel you will want to program zones 1-8. They should automatically skip that field in *56 zone programming since the input type on those zones is a hard coded setting.
My 8 zones are programmed like this
It sounds like your 20P is looking for an expansion module. Is it possible that you programmed any zones as Input Type 2 - AW (Aux Wired Zone)? How many wired zones do you have? Are you doing any zone doubling?
Hi, I am a DIYer and I am having trouble with my Vista 20p programming. I have a Tuxedo touch, one 6160 keypad and a vista 20p control panel. Everything is hardwired. I followed directions and wired everything to the vista 20p, but I am constantly getting this error that says the expansion module failed. It also says zn 107 fail. I don't have an expansion module on my vista 20p, and I am not sure why it keeps giving me this issue. Do I need to program it to know there is not expansion mod? If so, how?
Yes, on the motion. No, on the siren. Sirens need to be home run to the panel.
Can a siren and wired motion detector run off the expansion module?
Dip switch 8 controls the tamper function. If it's set to ON, the tamper will be disabled. If it's set to OFF, the case cover will need to be on to avoid a tamper fault.
You can set the dip switches so that the tamper button won't be supervised and then simply mount the two 4219s to the inside of the can at the bottom. They should both fit side by side.
The instructions here say to leave the module in the white case when mounting it in the normal can. Is there any way to do it without? Better yet a good way of mounting two of them in there?
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