Elk M1G and 4 Wire Smokes

I have recently moved into a newly constructed house that I homerunned everything. I ran approx. 37,000 linear feet of Cat5, RG6QS, Security Wire, Etc. I terminated all my Cat5 into four 48 port patch panels. Now I am in the process of completing my ELK M1G. I am using a Channel Master 42 inch can. Mounted the M1G almost to the top, leaving room for wiring runs at the top. Mounted the battery below and to the side about 5 inches from the Master control. I have 15 FOUR WIRE System Sensor 4WTA-B. Two M1SXP Lighting Thermostat interface serial port expanders, Two Battery Shelfs, Two Batteries, TRG1640 additional Transformer, FOUR M1XIN 16 Zone Expanders, PD9HC Power Distribution Module. Two Round Acoustic Glassbreak Sensors, Five Glass break Sensors, 20 Comet PIR , 2 360 degree infrared detectors, 6 door sensors, water valve shutoff and 10 water sensors. I realized i didnt order the data hub and will do that tomorrow.

My first question, is there a preferred layout in the 42 inch can for the equipment?

I am a little confused on the 4 wire smokes and how to wire them in. I am wanting, if possible, when one alarm to sound that they all do. But also, is there a way to wire it that will tell which smoke detector originated the alarm? If so, is there a particular way to wire it or is that in the rules? I ran the Belden Red smoke wire (4) and the colors are Red, Black, Blue, Brown. Any particular order of colors to the input on the panel? How exactly do you use the EOL relays for the 4 wire smokes and with 15 smokes, how do you use the +SAUX and NEG with that many? Do you use the first 15 left side terminals for the smokes? I have researched the ELK site, read the manual many times and am still lost.

Your patience is appreciated and I know i'll have lots of other questions for the next few days.

You need a reversing relay to make all of the smokes sound at the same time. That is done by programming a rule to operate a relay (output 3) to trip the RRS-MOD (I think that's the part number) reversing relay. The smokes can be wired to one zone with a supervision relay at the "End Of Line" (Last smoke from the panel) where the zone end of line resistor should also be placed

Red is typically positive supply voltage, black is the negative and blue and brown are your zone wiring.

Refer to the paperwork that comes with the 4wta-b devices or it can also be found here:

http://www.systemsensor.com/html/cd.html?UniqueID=60

http://www.systemsensor.com/pdf/I56-2170.pdf


The wiring diagram is Figure 3b in the PDF.

The RRS-MOD manual also has the wiring for the interface to the 4 wire detectors.

The devices are wired as such... Elk----Smoke 1-----Smoke 2-----Smoke 3-----xxxxxxxxSmoke 15---EOL Supervision relay and EOL resistor. (Daisy Chain)

Some people also like to wire some smokes to different zones so that they can determine where the "Problem" is. Personally, If there is smoke, I want everybody out ASAP. I don't care where it is. The smokes will tell you because they will light a red LED if they tripped until you reset their power.

Make sure to watch you current draw on SAUX power. Do not exceed the Elk maximums. You may need a separate power supply to handle all of your system devices.


As for the can layout that's where the fun begins. One 42 inch can may not be enough depending on the look you are going for...

Good Luck!

Thanks gatchel for the info. If I have homerunned all the wiring, how would i daisy chain within the panel with the EOL on #15? Thats where i draw a blank even after looking at the links you attached. I agree with all smokes going off at same time, my problem is its a 3 story house and would be better if i knew where originated for the Fire Dept. to know too.

Here's what I'm planning to do to ge common signalling for my not-daisy-chained 4-wire smokes. Brad Weeks feels that the voltage drop cross the shared ground will be minimal and shouldn't trigger false inputs; but, the smokes will be the only devices on that SAUX power anyway.

The only issue might be that all five will end up reporting fire when the common signaling line fires; only the first message tells tthe original location. But I think I can write a rule that will cache the location.

View attachment Wiring_Diagrams.pdf

Chris D.

blackbelt said:

Thanks gatchel for the info. If I have homerunned all the wiring, how would i daisy chain within the panel with the EOL on #15? Thats where i draw a blank even after looking at the links you attached. I agree with all smokes going off at same time, my problem is its a 3 story house and would be better if i knew where originated for the Fire Dept. to know too.

Click to expand...

You would have to have a power supervision relay at the end of each run with an EOL resistor there. I don't think you can daisy chain the detectors at the panel at this point.

So if i add the System Sensor RRS-MOD to the detector it would sound all alarms? Attached is the link to system sensor rrs-mod.

http://www.systemsensor.com/html/cd.html?UniqueID=48

Would I have to have one of these at the end of every detector?

Since I homerunned everything. How do I combined 15 wires to be attached to the +SAUX and NEG?

Thanks,
David

2blackbelt said:

So if i add the System Sensor RRS-MOD to the detector it would sound all alarms? Attached is the link to system sensor rrs-mod.

http://www.systemsensor.com/html/cd.html?UniqueID=48

Would I have to have one of these at the end of every detector?

Since I homerunned everything. How do I combined 15 wires to be attached to the +SAUX and NEG?

Thanks,
David

Click to expand...

The detector sounders are activated by reversing the power to the devices. If you put power to the rrs-mod and then out to the power wires for each detector then when the rrs-mod is activated all sounders will go off. You don't need an rrs-mod at the end of every detector, you need an end of line supervision relay that supervises the power to each device(System Sensor EOLR-1). If the power to a detector fails, the relay module will remove the supervision resistor and cause an open on that zone, this will cause a trouble for that zone on the Keypad display.

To combine the wires take all of the red wires from each detector (Power +) and tie them to the + output of the rrs-mod and all of the detector black wires (Power -) to the negative output of the rrs-mod. Look at figure 4 of the rrs-mod manual.

Another thing to remember is your current draw on the system. If you still choose to wire in each run directly to the panel you are going to use 300ma of current just to power the EOLR-1 relays (15 of them @ 20 ma each) for the zones. I would daisy chain devices as much as possible, maybe have a total of three zones. One for each floor. Ultimately the decision is yours.