Re: eol dsc1550

[Frank Olson <use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>]

joe wrote:
> joe wrote:
>> Frank Olson wrote:
>>
>>> klcross@xxxxxxxxxxx wrote:
>>>
>>>> I have a DSC alarm 1550 this alarm is used to power three motion
>>>> detectors with a battery backup.  The motion detectors are being
>>>> monitored via another system. I would like to put a contact between
>>>> all the zones so the lights would go off on a keypad.  I have
>>>> programmed all zones in installer program number(11) to 1,3 I did
>>>> this to bypass the fire zone.  Now all the lights are on the keypad.
>>>>
>>>> My question is should I just put an end of line resistor between the
>>>> six contacts, to make all the lights go off on the keypad?
>>>>
>>>> Thanks, Joe
>>>>
>>>
>>>
>>> There are cheaper ways to power PIR's than using a PC-1550.  And yes,
>>> there are methods available to have the zones monitored in two places
>>> and on two independent keypads.  You're going to have to provide some
>>> additional information regarding the main system.  What is it?  Where
>>> is it located?  Are there wires routed to it from each PIR (or are
>>> the PIR's reporting on a single zone)?
>>
>>
>> I got this DSC alarm 1550  cheap  enough with a box and a transformer,
>> I put a battery to this. The system I do have is a cellular system and
>> it does have the contacts to monitor 4 positions but it doesn't have
>> the power in the battery to power these, very long if the power is out.
>>
>> I have the motion detectors set normally closed, just the sensing of
>> these are going to this cellular system.
>> I want to just put the eol resistors to the 1550 board, just for the
>> turning of the lights off on the keypad.
>> I got the error message to go away by programming this 1550 alarm
>> system without a fire zone.
>>
>>
>> I could just program this via the program 12, option 5. N.C. loops
>> (except fire) I still don't know if it needs the EOL resistors, for
>> them to be all normally closed loop?
>
> The four wires to the motion sensor, 2 normally closed wires are not
> connected to the DSC 1550 alarm system. The other 2 power wires are
> connected to the aux. Power of the DSC 1550 alarm system.
>
>  I just want to close off all the six zones of the DSC 1550 alarm system
> with a wire, if this option is safe, or with a wire with the end of line
> resistor attached. Just to make the DSC 1550 think that all is well.
> This will turn all the lights off on the keypad.
>
> Thanks, Joe


You have to jumper out the zones on the 1550 if you're not using them.
If you turn on light #5 in option 12, you can use regular 22AWG wire
between the "zone" and "zone common" terminals otherwise you'll have to
use the 1K ohm resistors.  Program all the zones as "perimeter" (03).
It's been quite a while since I worked with a 1550 panel.  Good luck!!