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PTC protected dual battery harness

Looking for something similar to the DMP 318. I took over an account
with 35 DMP 500 panels and the customer needs to add additional
battery backup. I don't have an account with DMP. Anything available
over the counter?
 
F

Frank Olson

Jan 1, 1970
0
Looking for something similar to the DMP 318. I took over an account
with 35 DMP 500 panels and the customer needs to add additional
battery backup. I don't have an account with DMP. Anything available
over the counter?


How much more "backup" does he need? Most panels can handle recharging
up to a 14AH battery (2 7AH batteries in parallel will fit in most cans
if they're not "overloaded" with wire).
 
R

Robert L Bass

Jan 1, 1970
0
Looking for something similar to the DMP 318. I took over an account
with 35 DMP 500 panels and the customer needs to add additional
battery backup. I don't have an account with DMP. Anything available
over the counter?

With or without diodes? :^)

--

Regards,
Robert L Bass

==============================>
Bass Home Electronics
4883 Fallcrest Circle
Sarasota · Florida · 34233
http://www.bassburglaralarms.com
Sales & Tech Support 941-925-8650
Customer Service 941-870-2310
Fax 941-870-3252
==============================>
 
C

Crash Gordon

Jan 1, 1970
0
I think I have some.
Also, have some Radionics ones as well.



--
**Crash Gordon**






| Looking for something similar to the DMP 318. I took over an account
| with 35 DMP 500 panels and the customer needs to add additional
| battery backup. I don't have an account with DMP. Anything available
| over the counter?
 
N

Nomen Nescio

Jan 1, 1970
0
How much more "backup" does he need? Most panels can handle recharging
up to a 14AH battery (2 7AH batteries in parallel will fit in most cans
if they're not "overloaded" with wire).

Frank, when more than one battery is connected in parallel, the correct way
to do it is to use some sort of overload protection in the battery leads.
Either a circuit breaker, a PTC device, or even a properly selected fuse.
Suppose one battery develops an internal short: the good battery will
start trying to charge the shorted battery, and hazardous amounts of
current can flow.

A comment on the original poster's question: I think it is monumentally
stupid for someone to take over 35 DMP panels (DMP's biggest and most
powerful panel, by the way) and not have a source for spare parts. If he
can't even come up with a battery harness, what's he going to do when he
needs a keypad or a loop expander, or when one of those XR500 panels craps
out on Friday night?
 
C

Crash Gordon

Jan 1, 1970
0
The 500 is awesome. I use the 100 for big residential and love it.
I wouldn't take over any panel I couldn't support...especially at 3am on a
Sunday night.



--
**Crash Gordon**






| >How much more "backup" does he need? Most panels can handle recharging
| >up to a 14AH battery (2 7AH batteries in parallel will fit in most cans
| >if they're not "overloaded" with wire).
|
| Frank, when more than one battery is connected in parallel, the correct
way
| to do it is to use some sort of overload protection in the battery leads.
| Either a circuit breaker, a PTC device, or even a properly selected fuse.
| Suppose one battery develops an internal short: the good battery will
| start trying to charge the shorted battery, and hazardous amounts of
| current can flow.
|
| A comment on the original poster's question: I think it is monumentally
| stupid for someone to take over 35 DMP panels (DMP's biggest and most
| powerful panel, by the way) and not have a source for spare parts. If he
| can't even come up with a battery harness, what's he going to do when he
| needs a keypad or a loop expander, or when one of those XR500 panels craps
| out on Friday night?
|
 
Frank, when more than one battery is connected in parallel, the correct way
to do it is to use some sort of overload protection in the battery leads.
Either a circuit breaker, a PTC device, or even a properly selected fuse.
Suppose one battery develops an internal short:  the good battery will
start trying to charge the shorted battery, and hazardous amounts of
current can flow.

A comment on the original poster's question:  I think it is monumentally
stupid for someone to take over 35 DMP panels (DMP's biggest and most
powerful panel, by the way) and not have a source for spare parts.  If he
can't even come up with a battery harness, what's he going to do when he
needs a keypad or a loop expander, or when one of those XR500 panels craps
out on Friday night?

Nomen, I also purchased several pieces of backup equipment. I have
enough parts to put together another 5 systems.
 
F

Frank Olson

Jan 1, 1970
0
Nomen said:
Frank, when more than one battery is connected in parallel, the correct way
to do it is to use some sort of overload protection in the battery leads.
Either a circuit breaker, a PTC device, or even a properly selected fuse.
Suppose one battery develops an internal short: the good battery will
start trying to charge the shorted battery, and hazardous amounts of
current can flow.

I don't know whose batteries you've used, but "internal shorts" are
extremely rare. DSC's 1864 has provision for connecting two batteries
in parallel (12v7AH). There's no provision on the harness for an inline
fuse or PTC device. Interesting.

A comment on the original poster's question: I think it is monumentally
stupid for someone to take over 35 DMP panels (DMP's biggest and most
powerful panel, by the way) and not have a source for spare parts. If he
can't even come up with a battery harness, what's he going to do when he
needs a keypad or a loop expander, or when one of those XR500 panels craps
out on Friday night?

Agreed. But then there's always Jim R's garage... :)

Frank Olson
http://www.yoursecuritysource.com

"It only implies that I don't sit back and let you post more false
accusations without responding." - Robert L. Bass
 
F

Frank Olson

Jan 1, 1970
0
Just said:
News to DSC? I don't think so.
It is right in their installation manual.

(From the old Power Series manual)
Auxiliary Power Terminals - AUX+ and AUXThese
terminals provide up to 550 mA of additional current at
12 VDC for devices requiring power. Connect the positive side
of any device requiring power to the AUX+ terminal, the negative
side to AUX- (ground). The AUX output is protected. This
means that if too much current is drawn from these terminals
(such as a wiring short), the panel will temporarily shut off the
output until the problem is corrected.

(From the new Power Series manual)
The control panel can provide a maximum of 700mA of current for modules,
powered detectors, relays, LED's etc.


I think you made reference to "1 Amp", which is what Mark picked up on
and responded to. You gotta be precise in this NG or people will jump
all over you.
 
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