DSC 4020 CF

[Buggs]

I have a new 4020CF commercial fire panel V 3.54 that won't answer a
download call. Verified connections, polarity, voltages, and programming
with no luck. DSC tech support is clueless. Anyone had a similar problem?

 

[Nick Markowitz Jr.]

did your try totally powering down panel and repower back up this works
with other systems when they jam.

 

[Buggs]

did your try totally powering down panel and repower back up this
works with other systems when they jam.

Yup.
js

 

[Buggs]

So did it ever send signals?

Yeah, no problem. It connects via PC Link too, it just won't answer the
phone.
js

 

[Frank Olson]

Yeah, no problem. It connects via PC Link too, it just won't answer the
phone.
js

Check the main chip. If it says "Made in Sarasota", that explains why
it won't answer the phone.

 

[A.J.]

The line that it is hooked up to actually rang ?

I came across a bulding where the communicator was using the manager's phone
and during the day time she had the phone line call forwarded to her cell
phone.

 

[Norm Mugford]

Verify the phone number on the line to make sure it's the
line you're calling, then try reversing tip & ring.

Norm Mugford

The line that it is hooked up to actually rang ?

I came across a bulding where the communicator was using the manager's
phone and during the day time she had the phone line call forwarded to her
cell phone.

I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html

 

[Buggs]

The line that it is hooked up to actually rang ?

Yup.
js

 

[Buggs]

Verify the phone number on the line to make sure it's the
line you're calling, then try reversing tip & ring.

The line rings, and tip and polarity checks ok.
js

 

[Buggs]

The line rings, and tip and polarity checks ok.
js

S.B. Polarity checks OK.
js

 

[George Siegle]

We had the same thing happen with a 4020, DSC told us we had too many devices on the system and the board was not getting the proper amount of power to work correctly.

Went to Tri-ed bought a new board, CHANGED ONLY THE BOARD, and now we could upload from the office.

I think you may just have to change out that Defective Security Cpu. PC-4020.

 

[Buggs]

We had the same thing happen with a 4020, DSC told us we had too many devices on the system and the board was not getting the proper amount of power to work correctly.

Went to Tri-ed bought a new board, CHANGED ONLY THE BOARD, and now we could upload from the office.

I think you may just have to change out that Defective Security Cpu. PC-4020.


Yeah, I ordered a replacement, which should be here today.
The only devices connected to this board is one keypad, and a 4701 dual phone line module. DSC tech support may as well not exist. I have called them only a few times over the years, and have been disappointed every time. This is the last time I ever use a DSC fire panel.
js

 

[Buggs]

I have a box full of DSC 4020CF panels. I bet not even the land fill
will take them. Who cares if the panel won't answer up when you dial
in? It takes a full 45 minutes to do a complete upload and the same
45 minutes for a complete download. What a headache! And using it as
just a fire panel and not a combo burg/fire? Why not use a real fire
panel and avoid the problems?

Yea, this one is a combo. I don't ever do a full ul/dl on a maxsys panel,
but I still like to be able to connect to it. This is the last time I'll use
one for fire though.
js