Electronic Alarms and Home Security Devices - Dsc Pc1555

I have a DSC1555 system in my house and I am trying to wire a Leviton Structured Media Panel into the PC1555. I am somewhere between beginner and intermediate. I am a little confused about something. From my understanding the zones, such as doors and windows are wired to the PC1555 box into the connections labeled Z1, Z2....for the different zones. Where are the phones lines wired? Are they wired to the Comm connections?

The phones do wire to the comm connections (see your installer manual). You want a RJ-31x in the system, which your structured telco setup may have built in.

(also see the FAQ for this topic, there is a link to a diagram for the proper connection of a RJ-31x)

Thanks, but the way the house was wired is like this. Coming from the telco NID it has to separate cables, one going to the first jack on the run upstairs and one going to the demarc connection on the PC1555 downstairs. This makes it easy for me, so I am just going to just leave the upstairs phones as is and wire in my data lines from upstairs and phone and date from downstairs into the Structured Media Panel. Ok, one more question. I want to try to make this transfer as quick as possible without the alarm going off once I disconnect the phone line. I also don't want to have to disconnect the power from the PC1555 since I am not really doing anything to it other than connecting the RJ45 connector to the new panel and taking the phone line which is currently wired into a jack inside the PC1555 and punching it down into the new panel. Basically is there a code I can enter to prevent the PC1555 from going off after removing the phone line? I know it gives you a minute or two before it goes off, but I may need more time to move the cables. Any suggestions will help.

Unless it was programmed to sound the siren if the phone line is disconnected while the system is disarmed, all it will do, at most, is display a trouble at the keypad.

If your system has that feature active (unlikely, it's a bit of a pain in the neck, and few installers turn it on for a residential installation), just take one of the wires off of the bell/siren output, and remember to call your monitoring center before your start tinkering.

Re routing telecom lines to a panel really isn't that major of a thing....

Ok, yeah it does sound when the phone line is removed. Thanks I will disconnect the siren output

I hope I am not being annoying, but I ran into another snag. I have wired the dmarc into the new panel and I have ring tone on the panel. On the Leviton TLDM it has a RJ45 port to connect to the security panel. I have this connected to the Ring and Tip connections on the PC1555. The PC1555 is seeing the TLDM and the telco because there is a little bulb on the PC1555 that lights when a call comes in, but all the phone jacks upstairs are dead now. At this point I am confused. I expected when I connected the TLDM to the PC1555 by this security RJ45 port that it would also connect those Comm connections from upstairs? If not then I guess now I need to move these wires to the new panel. I was hoping to leave them on the PC1555 and wire the new jacks to the TLDM. The person that originally wired the house didn't use stick to the color codes, so can someone help me understand something about the PC1555. There are 6 zones

Z1 Z2 Z3 Z4 Z5 Z6 and COM connections in between each, but some of the COM ports have two wires connected and the other wires in the cable are connected to the zones. From what I understand these COM connections are for the phone jacks, and the Zones go to the sensors for the zones such as doors and windows. How are they split out throughout the house and then come together at the PC1555, and also the phone pairs are suppose to be wired together into one COM port?:wall:

I removed the RJ-31x jack, but do I need it? I am wondering if the security port on the TLDM is the same thing?

I just read around and I think my problem is that I need to install the RJ31X back, I also read that the TLDM security port is not a PJ31X, but can I now connect the TLDM telco panel to the RJ31x and have the upstairs lines and the downstairs lines work?

Read the instructions for your new telco distribution panel. Often there is a jumper that has to be removed for the built in RJ-31x to work correctly.

The incoming phone line goes on ring and tip, the house lines are fed back via R1 T1. Generally, with this type of structured distribution panel, you just plug the phone cable from the alarm in to the RJ45 jack on the phone panel.

The system zone wiring has nothing to do with the telco connection. COM = Common

The telephone wiring goes on the Ring Tip/ R1 T1. (That's what I meant by "comm" connections, as in "communications").

If you don't have a installer manual for the PC 1555 websearch using the phrase: "installer manual DSC PC 1555". Many of your questions are in that source.

The system zone wiring has nothing to do with the telco connection.

This is the part that is messing with me. I understand that the zone wiring is not part of the telco connection, so how is the phone line getting through the house? I didn't start having problems until unhooking from the security panel. I followed all of the instructions. I have everything wired at the security panel no different than before. The only think I changed is that instead of having the line from the telco box going to the RJ31X jack I have it going to the telco panel. The telco panel is now wired into the RJ31X jack. I tried it without the RJ31X jack and that didn't work either. Shouldn't it work like this?

I think that your problem is that you may have changed the house wiring around, and may not have your actual Telco _source_ line coming into the proper point on your structured wiring panel.

This is a case where what you _think_ you have done may vary from what actually wired.

This site: http://www.hometech.com/learn/rj31x.html

Gives very good instructions on the basic RJ-31x jack. The instructions for your structure wiring setup may vary from this, and you need to consult them.

The only connections you need to make on the alarm panel are the ones for the plug cable that plugs into RJ-31x or it's replacement on your patch panel.

I think you have a phone wiring problem, not an alarm problem.

Thanks for all you help. Middle of last week I was able to get all the phones upstairs and downstairs working. Everything is connected to the security system. I just have a few fine tuning things I have to take care of. My problem was that I didn't pay attention to the telco NID. The 2nd pair Black and Yellow are connected to the upstairs phone lines, which was wired through the RJ31X jack, which is now still wired to the RJ31X jack just through cat5 so I can use just one cable to connect to the RJ45 port on the telephone panel and to the RJ31X jack. The only issues I have now is that my DSL looses sync every now and then. It seems like it happens when a call come in also. I wonder if a have a bad connection somewhere. I am going to recrimp the connections I pulled apart and retwisted at the NID and also the first jack on the run. Do you or anyone have any ideas as to why DSL sync would drop like this. I probably need to move this thread to a different board now. Would mixing up tip and ring somewhere cause a problem? I used green as tip and red as ring and black as tip 2 and yellow as ring 2, but when I wired the RJ45 connector I used T568A. I am not sure if this is the correct scheme to use. Another possible conflict is between the NID and upstairs. I would imagine I need to wire black to white/orange and yellow to orange.

a filter for the alarm system too? If you had a professional DSL install, the answer should be yes. I think some of the Leviton stuff has built-in filters, but you'll need to check the manual.

Double check all crimps and connections, as you orginally planned.

Make sure that anything connected to the phone lines has a filter, including alarm systems, fax machines, modems and satellite TV boxes. You can disregard this if you had a professional install, a whole-house DSL filter, or if the Leviton panel already includes this.

If you have a spare filter, try swapping out your existing filters one by one. Sometimes they go bad or are bad out of the box.

I hope this helps!

I hope this helps.

I have the telco line wired to the Leviton panel, but I only have one phone jack wired to the panel. The other jacks are wired using the RJ31xjack. All of the jacks that haver devices connected to them have DSL filters. I even tried changing the DSL filter on the jack in question. No help. Could a bad filter on a separate (other than the one the DSL modem is connected) jack cause a problem with the DSL line. If that's the case then I guess I could test this by unplugging all the phones and fax machine to test. Pretty sure the panel doesn't have a filter, I still get the DSL noise on the line without a filter. They make a Leviton DSL filter for the panel. You gave me an idea, but that still doesn't explain the DSL issue, so I will try your recommendations. If there is a tip ring conflict could I still have phone service, but issues with my DSL?

I have DSL filters on all the phone lines and I tried swapping the one with the DSL modem connected

I have isolated the issue to being something with having the RJ31X jack installed. My DSL RX power is too low when I have the RJ31x jack wired in. When I connect directly to the NID I get about 15 dB and when I connected directly to the Leviton panel without the RJ31x jack in the circuit I get about 12 dB, which is still in spec. When I wire the RJ31x jack in the circuit I get a 8 dB, with a lot of CRC errors and I mean a lot, a constant stream. Any suggestions short of wiring home runs to all the jacks? There is one thing I was wondering about. The DSC PC1555 only need one pair correct, Tip 1 and Ring 1? I also wonder if the Leviton panel's Security port (not a RJ31x jack, the Leviton panel that I have odes not have a RJ31x jack built in) allows for me to have the line wires through using the RJ31x jack or is intenced just to give phone line access to the Security system and for the phone lines they should be wired home run to the other ports on the panel.

Several of the older models of security systems (this one included) need to have a DSL filter that is specifically made for alarm system connections.

If your DSL provider can't get you one, just websearch using the phrase: "Alarm DSL Filter".

I didn't have this problem until I added the Leviton panel. I have always had that same security panel and the same DSL filters. My DSL was self install if this helps.

In that case, then all I can say it that you don't really have an _alarm_ problem; you have a telephone wiring problem, and that is very difficult to diagnose with second hand information.

Could you simply have your connections not punched down on the new patch panel as well as you think? That little tool they sell those things with isn't the best in the world. Sometimes there's no substitute for a real punch down tool.